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  3. Has anyone made a 2 or 4 channel relay , and is that worked correct ?

Has anyone made a 2 or 4 channel relay , and is that worked correct ?

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  • AWIA AWI

    @Reza we are kind of guessing in the dark right now. Can you post your sketch (as code, use the </> format button)

    R Offline
    R Offline
    Reza
    wrote on last edited by sundberg84
    #12

    @AWI said:

    @Reza we are kind of guessing in the dark right now. Can you post your sketch (as code, use the </> format button)

    #include <MySigningNone.h>
    #include <MyTransportNRF24.h>
    #include <MyTransportRFM69.h>
    #include <MyHwATMega328.h>
    #include <MySensor.h>
    #include <SPI.h>
    
    #define RELAY_1  3  // Arduino Digital I/O pin number for first relay (second on pin+1 etc)
    #define NUMBER_OF_RELAYS 2 // Total number of attached relays
    #define RELAY_ON 1  // GPIO value to write to turn on attached relay
    #define RELAY_OFF 0 // GPIO value to write to turn off attached relay
    
    // NRFRF24L01 radio driver (set low transmit power by default) 
    MyTransportNRF24 radio(RF24_CE_PIN, RF24_CS_PIN, RF24_PA_LEVEL_GW);  
    //MyTransportRFM69 radio;
    // Message signing driver (none default)
    //MySigningNone signer;
    // Select AtMega328 hardware profile
    MyHwATMega328 hw;
    // Construct MySensors library
    MySensor gw(radio, hw);
    
    void setup()  
    {   
      // Initialize library and add callback for incoming messages
      gw.begin(incomingMessage, AUTO, true);
      // Send the sketch version information to the gateway and Controller
      gw.sendSketchInfo("Relay", "1.0");
    
      // Fetch relay status
      for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS;sensor++, pin++) {
        // Register all sensors to gw (they will be created as child devices)
        gw.present(sensor, S_LIGHT);
        // Then set relay pins in output mode
        pinMode(pin, OUTPUT);   
        // Set relay to last known state (using eeprom storage) 
        digitalWrite(pin, gw.loadState(sensor)?RELAY_ON:RELAY_OFF);
      }
    }
    
    
    void loop() 
    {
      // Alway process incoming messages whenever possible
      gw.process();
    }
    
    void incomingMessage(const MyMessage &message) {
      // We only expect one type of message from controller. But we better check anyway.
      if (message.type==V_LIGHT) {
         // Change relay state
         digitalWrite(message.sensor-1+RELAY_1, message.getBool()?RELAY_ON:RELAY_OFF);
         // Store state in eeprom
         gw.saveState(message.sensor, message.getBool());
         // Write some debug info
         Serial.print("Incoming change for sensor:");
         Serial.print(message.sensor);
         Serial.print(", New status: ");
         Serial.println(message.getBool());
       } 
    }
    
    1 Reply Last reply
    0
    • R Offline
      R Offline
      Reza
      wrote on last edited by Reza
      #13

      I change power supply and use a 5v 1A adaptor , but one relay is off always ( led off). and 2channel relay is not failure because when I change output pin 3 and 4 , that relay is on and work !!

      1 Reply Last reply
      0
      • barduinoB Offline
        barduinoB Offline
        barduino
        wrote on last edited by barduino
        #14
        This post is deleted!
        1 Reply Last reply
        0
        • R Offline
          R Offline
          Reza
          wrote on last edited by
          #15

          :/ why delete your post ? :(

          barduinoB 1 Reply Last reply
          0
          • sundberg84S Offline
            sundberg84S Offline
            sundberg84
            Hardware Contributor
            wrote on last edited by
            #16

            @Reza - ok communication looks good. My vote will be on power.
            I would try to power the relay separately and see what happens (not from Arduino).

            Controller: Proxmox VM - Home Assistant
            MySensors GW: Arduino Uno - W5100 Ethernet, Gw Shield Nrf24l01+ 2,4Ghz
            MySensors GW: Arduino Uno - Gw Shield RFM69, 433mhz
            RFLink GW - Arduino Mega + RFLink Shield, 433mhz

            R 1 Reply Last reply
            1
            • sundberg84S sundberg84

              @Reza - ok communication looks good. My vote will be on power.
              I would try to power the relay separately and see what happens (not from Arduino).

              R Offline
              R Offline
              Reza
              wrote on last edited by Reza
              #17

              @sundberg84 said:

              @Reza - ok communication looks good. My vote will be on power.
              I would try to power the relay separately and see what happens (not from Arduino).

              i test this . with a adaptor 5v 1A but dont any happen !?

              1 Reply Last reply
              0
              • sundberg84S Offline
                sundberg84S Offline
                sundberg84
                Hardware Contributor
                wrote on last edited by
                #18

                @Reza From your images you are not - do you have another adaptor for the relay?

                Controller: Proxmox VM - Home Assistant
                MySensors GW: Arduino Uno - W5100 Ethernet, Gw Shield Nrf24l01+ 2,4Ghz
                MySensors GW: Arduino Uno - Gw Shield RFM69, 433mhz
                RFLink GW - Arduino Mega + RFLink Shield, 433mhz

                R 1 Reply Last reply
                0
                • sundberg84S sundberg84

                  @Reza From your images you are not - do you have another adaptor for the relay?

                  R Offline
                  R Offline
                  Reza
                  wrote on last edited by
                  #19

                  @sundberg84 said:

                  @Reza From your images you are not - do you have another adaptor for the relay?

                  I disconnect relay from arduino and connect to a adaptor 5v 1A

                  1 Reply Last reply
                  0
                  • sundberg84S Offline
                    sundberg84S Offline
                    sundberg84
                    Hardware Contributor
                    wrote on last edited by
                    #20

                    Strange... im out of ideas at this point. Hardware failure?
                    Im not that good looking at the code, but I maybe someone else is.

                    Controller: Proxmox VM - Home Assistant
                    MySensors GW: Arduino Uno - W5100 Ethernet, Gw Shield Nrf24l01+ 2,4Ghz
                    MySensors GW: Arduino Uno - Gw Shield RFM69, 433mhz
                    RFLink GW - Arduino Mega + RFLink Shield, 433mhz

                    R 1 Reply Last reply
                    0
                    • sundberg84S sundberg84

                      Strange... im out of ideas at this point. Hardware failure?
                      Im not that good looking at the code, but I maybe someone else is.

                      R Offline
                      R Offline
                      Reza
                      wrote on last edited by
                      #21

                      @sundberg84 said:

                      Strange... im out of ideas at this point. Hardware failure?
                      Im not that good looking at the code, but I maybe someone else is.

                      :( thank you
                      this is strange for me too . pin 3 dont working . but pin4 worked . also if i change cable of pin 3 and 4 other relay working and pin 3 dont work
                      I change 2 line :
                      #define RELAY_1 4
                      #define NUMBER_OF_RELAYS 2
                      but so pin 4 dont work and pin 5 working....

                      barduinoB 1 Reply Last reply
                      0
                      • R Reza

                        :/ why delete your post ? :(

                        barduinoB Offline
                        barduinoB Offline
                        barduino
                        wrote on last edited by
                        #22

                        @Reza,

                        I'm a noob at electronics and arduinos and have a wild imagination :smiley:

                        I had a theory but was unsure, so I decided to test it first rather than cause more confusion.

                        I know this is a place of sharing, but more than once I caused more problems when trying to help.

                        I don't want to bring some stupid idea into the fold.

                        I'll report back.

                        1 Reply Last reply
                        0
                        • R Reza

                          @sundberg84 said:

                          Strange... im out of ideas at this point. Hardware failure?
                          Im not that good looking at the code, but I maybe someone else is.

                          :( thank you
                          this is strange for me too . pin 3 dont working . but pin4 worked . also if i change cable of pin 3 and 4 other relay working and pin 3 dont work
                          I change 2 line :
                          #define RELAY_1 4
                          #define NUMBER_OF_RELAYS 2
                          but so pin 4 dont work and pin 5 working....

                          barduinoB Offline
                          barduinoB Offline
                          barduino
                          wrote on last edited by barduino
                          #23

                          @Reza,

                          I guess reality is stranger than fiction.

                          To eliminate any bad connections I started by this:

                          void setup()  
                          { 
                            pinMode(3, OUTPUT); 
                            pinMode(4, OUTPUT); 
                            pinMode(5, OUTPUT); 
                            pinMode(6, OUTPUT); 
                            
                            digitalWrite(3,LOW);
                            digitalWrite(4,LOW);
                            digitalWrite(5,LOW);
                            digitalWrite(6,LOW);
                          }
                          
                          void loop() 
                          {
                              for( int i=3;i<=6;i++){
                                digitalWrite(i,HIGH);
                                delay(500);
                              
                              }
                              for( int i=3;i<=6;i++){
                                digitalWrite(i,LOW);
                                delay(500);
                              }
                          }
                          

                          Using a 4 relay board, connected pins 3 through 6, I get a nice effect of all pins light up in sequence and then turn off in sequence.

                          With the relay sketch from the examples (lib 2.0.0) and debugging the load state values which where set to 0 for each sensor I have for each relay (off, ON, ON, ON).

                          Then on the setup I decide to reduce it to this:

                          void setup()  
                          { 
                            for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS;sensor++, pin++) {
                              // Then set relay pins in output mode
                              pinMode(pin, OUTPUT);  
                              digitalWrite(pin,LOW);
                              Serial.print("Pin ");
                              Serial.print(pin);
                              Serial.println(" to LOW");
                            }
                          }
                          

                          Same result or each relay (off, ON, ON, ON).

                          Starting repeater (RNNRA-, 2.0.0-beta)
                          Radio init successful.
                          Pin 3 to LOW
                          Pin 4 to LOW
                          Pin 5 to LOW
                          Pin 6 to LOW
                          send: 15-15-0-0 s=255,c=3,t=15,pt=0,l=2,sg=0,st=ok:
                          send: 15-15-0-0 s=255,c=0,t=18,pt=0,l=10,sg=0,st=ok:2.0.0-beta
                          send: 15-15-0-0 s=255,c=3,t=6,pt=1,l=1,sg=0,st=ok:0
                          read: 0-0-15 s=255,c=3,t=6,pt=0,l=1,sg=0:M
                          send: 15-15-0-0 s=255,c=3,t=11,pt=0,l=5,sg=0,st=ok:Relay
                          send: 15-15-0-0 s=255,c=3,t=12,pt=0,l=3,sg=0,st=ok:1.0
                          send: 15-15-0-0 s=1,c=0,t=3,pt=0,l=0,sg=0,st=ok:
                          Presenting sensor:1
                          send: 15-15-0-0 s=2,c=0,t=3,pt=0,l=0,sg=0,st=ok:
                          Presenting sensor:2
                          send: 15-15-0-0 s=3,c=0,t=3,pt=0,l=0,sg=0,st=ok:
                          Presenting sensor:3
                          send: 15-15-0-0 s=4,c=0,t=3,pt=0,l=0,sg=0,st=ok:
                          Presenting sensor:4
                          Init complete, id=15, parent=0, distance=1
                          

                          So I decided to re-initialize the pins once more in the loop section:

                          void loop() 
                          {
                              if (isFirstTime){
                                for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS;sensor++,pin++) {
                                    
                                    currState = loadState(sensor);  
                                    
                                    pinMode(pin, OUTPUT);  
                                    digitalWrite(pin,LOW);
                                  
                                    Serial.print("Current Status sensor:");
                                    Serial.print(sensor);
                                    Serial.print("\t");
                                    Serial.print("State:");
                                    Serial.print(currState);
                                    Serial.print("\t");
                                    Serial.print("Pin:");
                                    Serial.println(pin);
                          
                                    // Set relay to last known state (using eeprom storage) 
                                    digitalWrite(pin, currState?RELAY_ON:RELAY_OFF);
                                    wait(500);
                                }
                                isFirstTime = false;
                              }
                          
                          }
                          

                          Now I have all relays off:

                          Init complete, id=15, parent=0, distance=1
                          Current Status sensor:1	State:0	Pin:3
                          Current Status sensor:2	State:0	Pin:4
                          Current Status sensor:3	State:0	Pin:5
                          Current Status sensor:4	State:0	Pin:6
                          

                          Now sending some messages:
                          Relay 1

                          Current Status sensor:4	State:0	Pin:6
                          read: 0-0-15 s=1,c=1,t=2,pt=0,l=1,sg=0:1
                          Incoming change for sensor:1 On pin:3, New status: 1
                          read: 0-0-15 s=1,c=1,t=2,pt=0,l=1,sg=0:0
                          Incoming change for sensor:1 On pin:3, New status: 0
                          

                          Works fine but guess what, Relay 4 also turned ON after Relay 1

                          Relay 2:

                          read: 0-0-15 s=2,c=1,t=2,pt=0,l=1,sg=0:1
                          Incoming change for sensor:2 On pin:4, New status: 1
                          read: 0-0-15 s=2,c=1,t=2,pt=0,l=1,sg=0:0
                          Incoming change for sensor:2 On pin:4, New status: 0
                          

                          Works fine but Relay 4 blinks and stays on

                          Relay 3:

                          read: 0-0-15 s=3,c=1,t=2,pt=0,l=1,sg=0:1
                          Incoming change for sensor:3 On pin:5, New status: 1
                          read: 0-0-15 s=3,c=1,t=2,pt=0,l=1,sg=0:0
                          Incoming change for sensor:3 On pin:5, New status: 0
                          

                          Works fine but Relay 4 blinks and stays on

                          Relay 4:

                          read: 0-0-15 s=4,c=1,t=2,pt=0,l=1,sg=0:1
                          Incoming change for sensor:4 On pin:6, New status: 1
                          read: 0-0-15 s=4,c=1,t=2,pt=0,l=1,sg=0:0
                          Incoming change for sensor:4 On pin:6, New status: 0
                          

                          Relay 4 blinks and stays on

                          These relays are solid state 5v, arduino pro mini 5v and I both used the power from computer USB and a 6000 mAh phone battery with the same results.

                          Here is the full code:

                          /**
                           * The MySensors Arduino library handles the wireless radio link and protocol
                           * between your home built sensors/actuators and HA controller of choice.
                           * The sensors forms a self healing radio network with optional repeaters. Each
                           * repeater and gateway builds a routing tables in EEPROM which keeps track of the
                           * network topology allowing messages to be routed to nodes.
                           *
                           * Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
                           * Copyright (C) 2013-2015 Sensnology AB
                           * Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
                           *
                           * Documentation: http://www.mysensors.org
                           * Support Forum: http://forum.mysensors.org
                           *
                           * This program is free software; you can redistribute it and/or
                           * modify it under the terms of the GNU General Public License
                           * version 2 as published by the Free Software Foundation.
                           *
                           *******************************
                           *
                           * REVISION HISTORY
                           * Version 1.0 - Henrik Ekblad
                           * 
                           * DESCRIPTION
                           * Example sketch showing how to control physical relays. 
                           * This example will remember relay state after power failure.
                           * http://www.mysensors.org/build/relay
                           */ 
                          // Define Node ID
                          #define MY_NODE_ID 15
                          
                          
                          // Enable debug prints to serial monitor
                          #define MY_DEBUG 
                          
                          // Enable and select radio type attached
                          #define MY_RADIO_NRF24
                          //#define MY_RADIO_RFM69
                          
                          // Enable repeater functionality for this node
                          #define MY_REPEATER_FEATURE
                          
                          #include <SPI.h>
                          #include <MySensor.h>
                          
                          #define RELAY_1  3  // Arduino Digital I/O pin number for first relay (second on pin+1 etc)
                          #define NUMBER_OF_RELAYS 4 // Total number of attached relays
                          #define RELAY_ON HIGH  // GPIO value to write to turn on attached relay
                          #define RELAY_OFF LOW // GPIO value to write to turn off attached relay
                          
                          bool isFirstTime = true;
                          
                          bool currState;
                          
                          void setup()  
                          { 
                            for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS;sensor++, pin++) {
                              // Then set relay pins in output mode
                              pinMode(pin, OUTPUT);  
                              digitalWrite(pin,LOW);
                              Serial.print("Pin ");
                              Serial.print(pin);
                              Serial.println(" to LOW");
                            }
                          }
                          
                          void presentation()  
                          {   
                            // Send the sketch version information to the gateway and Controller
                            sendSketchInfo("Relay", "1.0");
                          
                            for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS;sensor++, pin++) {
                              // Register all sensors to gw (they will be created as child devices)
                              present(sensor, S_LIGHT);
                              Serial.print("Presenting sensor:");
                              Serial.println(sensor);
                            }
                          }
                          
                          
                          void loop() 
                          {
                              if (isFirstTime){
                                for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS;sensor++,pin++) {
                                    
                                    currState = loadState(sensor);  
                                    
                                    pinMode(pin, OUTPUT);  
                                    digitalWrite(pin,LOW);
                                  
                                    Serial.print("Current Status sensor:");
                                    Serial.print(sensor);
                                    Serial.print("\t");
                                    Serial.print("State:");
                                    Serial.print(currState);
                                    Serial.print("\t");
                                    Serial.print("Pin:");
                                    Serial.println(pin);
                          
                                    // Set relay to last known state (using eeprom storage) 
                                    digitalWrite(pin, currState?RELAY_ON:RELAY_OFF);
                                    wait(500);
                                }
                                isFirstTime = false;
                              }
                          
                          }
                          
                          void receive(const MyMessage &message) {
                            // We only expect one type of message from controller. But we better check anyway.
                            if (message.type==V_LIGHT) {
                               // Change relay state
                               digitalWrite(message.sensor-1+RELAY_1, message.getBool()?RELAY_ON:RELAY_OFF);
                               // Store state in eeprom
                               saveState(message.sensor, message.getBool());
                               // Write some debug info
                               Serial.print("Incoming change for sensor:");
                               Serial.print(message.sensor);
                               Serial.print(" On pin:");
                               Serial.print(message.sensor-1+RELAY_1);
                               Serial.print(", New status: ");
                               Serial.println(message.getBool());
                             } 
                          }
                          

                          This could be some issue with the development branch of 2.0.0, its been some time since I refreshed.

                          So refreshing the libs I see a new before() section and an empty setup() from the RelayActuator example

                          void before() { 
                            for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS;sensor++, pin++) {
                              // Then set relay pins in output mode
                              pinMode(pin, OUTPUT);   
                              // Set relay to last known state (using eeprom storage) 
                              digitalWrite(pin, loadState(sensor)?RELAY_ON:RELAY_OFF);
                            }
                          }
                          
                          void setup() {
                            
                          }
                          

                          Now it runs fine

                          Starting repeater (RNNRA-, 2.0.0-beta)
                          Radio init successful.
                          send: 15-15-0-0 s=255,c=3,t=15,pt=0,l=2,sg=0,st=ok:
                          send: 15-15-0-0 s=255,c=0,t=18,pt=0,l=10,sg=0,st=fail:2.0.0-beta
                          send: 15-15-0-0 s=255,c=3,t=6,pt=1,l=1,sg=0,st=ok:0
                          read: 0-0-15 s=2Starting repeater (RNNRA-, 2.0.0-beta)
                          Radio init successful.
                          send: 15-15-0-0 s=255,c=3,t=15,pt=0,l=2,sg=0,st=ok:
                          send: 15-15-0-0 s=255,c=0,t=18,pt=0,l=10,sg=0,st=fail:2.0.0-beta
                          send: 15-15-0-0 s=255,c=3,t=6,pt=1,l=1,sg=0,st=ok:0
                          read: 0-0-15 s=255,c=3,t=6,pt=0,l=1,sg=0:M
                          send: 15-15-0-0 s=255,c=3,t=11,pt=0,l=5,sg=0,st=ok:Relay
                          send: 15-15-0-0 s=255,c=3,t=12,pt=0,l=3,sg=0,st=ok:1.0
                          send: 15-15-0-0 s=1,c=0,t=3,pt=0,l=0,sg=0,st=ok:
                          send: 15-15-0-0 s=2,c=0,t=3,pt=0,l=0,sg=0,st=ok:
                          send: 15-15-0-0 s=3,c=0,t=3,pt=0,l=0,sg=0,st=fail:
                          send: 15-15-0-0 s=4,c=0,t=3,pt=0,l=0,sg=0,st=ok:
                          Init complete, id=15, parent=0, distance=1
                          read: 0-0-15 s=1,c=1,t=2,pt=0,l=1,sg=0:1
                          Incoming change for sensor:1, New status: 1
                          read: 0-0-15 s=1,c=1,t=2,pt=0,l=1,sg=0:0
                          Incoming change for sensor:1, New status: 0
                          read: 0-0-15 s=2,c=1,t=2,pt=0,l=1,sg=0:1
                          Incoming change for sensor:2, New status: 1
                          read: 0-0-15 s=2,c=1,t=2,pt=0,l=1,sg=0:0
                          Incoming change for sensor:2, New status: 0
                          read: 0-0-15 s=3,c=1,t=2,pt=0,l=1,sg=0:1
                          Incoming change for sensor:3, New status: 1
                          read: 0-0-15 s=3,c=1,t=2,pt=0,l=1,sg=0:0
                          Incoming change for sensor:3, New status: 0
                          read: 0-0-15 s=4,c=1,t=2,pt=0,l=1,sg=0:1
                          Incoming change for sensor:4, New status: 1
                          read: 0-0-15 s=4,c=1,t=2,pt=0,l=1,sg=0:0
                          Incoming change for sensor:4, New status: 0
                          

                          All relays behaving as expected before and after running a clearEEPROMconfig sketch.

                          So perhaps there is an issue with v1.5 but it seems the development branch of 2.0 is fine.

                          Or you can try to debug the hell out of it with plenty of Serial.prints.

                          Check with a simple sketch if your relays are fine.

                          If so check what are you getting from the loadState, make sure its boolean, initialize the pins to LOW in setup and if it doesn't work again in loop just once.

                          Try to have the relays always starting as off with no load or save state.

                          Cheers

                          1 Reply Last reply
                          0
                          • R Offline
                            R Offline
                            Reza
                            wrote on last edited by
                            #24

                            if any one built a 2 or 4 channel please help me , please send me the codes that you use , and wiring and please told me what you use adaptor ( how much V and A ) ? which arduino use ?

                            TheoLT 1 Reply Last reply
                            0
                            • R Reza

                              if any one built a 2 or 4 channel please help me , please send me the codes that you use , and wiring and please told me what you use adaptor ( how much V and A ) ? which arduino use ?

                              TheoLT Offline
                              TheoLT Offline
                              TheoL
                              Contest Winner
                              wrote on last edited by
                              #25

                              @Reza Since it's already a long thread I didn't want to read everything. But just a stupid question. Did you measure the relay? It would be my starting point. Because if that's not working, the rest will not work either.

                              Also I once had a relay connected to a ProMini 5V, which I powered over FDTI. But I forgot to setup my FDTI programmer to 5V. By this the Arduino didn't have enough power to switch on the relay. It took me a while before I discovered that, because the NFR24L01+ antenna was working just fine.

                              Before I add an external power source to an Arduino, I always feed the Arduino through the USB of my computer. In my experience it has always supplied enough power for controlling a relay state. You could try it, just to eliminate power supply issues.

                              Just a few tips for you my friend. I hope you'll be able to find the cause of your troubles really soon.

                              Take care.

                              R 1 Reply Last reply
                              1
                              • TheoLT TheoL

                                @Reza Since it's already a long thread I didn't want to read everything. But just a stupid question. Did you measure the relay? It would be my starting point. Because if that's not working, the rest will not work either.

                                Also I once had a relay connected to a ProMini 5V, which I powered over FDTI. But I forgot to setup my FDTI programmer to 5V. By this the Arduino didn't have enough power to switch on the relay. It took me a while before I discovered that, because the NFR24L01+ antenna was working just fine.

                                Before I add an external power source to an Arduino, I always feed the Arduino through the USB of my computer. In my experience it has always supplied enough power for controlling a relay state. You could try it, just to eliminate power supply issues.

                                Just a few tips for you my friend. I hope you'll be able to find the cause of your troubles really soon.

                                Take care.

                                R Offline
                                R Offline
                                Reza
                                wrote on last edited by Reza
                                #26

                                @TheoL said:

                                @Reza Since it's already a long thread I didn't want to read everything. But just a stupid question. Did you measure the relay? It would be my starting point. Because if that's not working, the rest will not work either.

                                Also I once had a relay connected to a ProMini 5V, which I powered over FDTI. But I forgot to setup my FDTI programmer to 5V. By this the Arduino didn't have enough power to switch on the relay. It took me a while before I discovered that, because the NFR24L01+ antenna was working just fine.

                                Before I add an external power source to an Arduino, I always feed the Arduino through the USB of my computer. In my experience it has always supplied enough power for controlling a relay state. You could try it, just to eliminate power supply issues.

                                Just a few tips for you my friend. I hope you'll be able to find the cause of your troubles really soon.

                                Take care.

                                hi thank you for help me , connected the in1 to pin3 and in2 to pin4 , but pin 4 work and 3 dont work ! (voltag Priority is pin 3 , is this true ? but pin 3 is off and pin4 is work !! also i change pin3 and 4 so other relay is work and other one connect to pin3 dont work ! i test this with a adaptor 5V and 1A but dont work , do need i use a adaptor with more amper ?
                                also i use a "ClearEepromConfig" program for my arduino and program relay again but dont work again...
                                ( my arduino is a arduino nano )

                                TheoLT 1 Reply Last reply
                                0
                                • R Reza

                                  @TheoL said:

                                  @Reza Since it's already a long thread I didn't want to read everything. But just a stupid question. Did you measure the relay? It would be my starting point. Because if that's not working, the rest will not work either.

                                  Also I once had a relay connected to a ProMini 5V, which I powered over FDTI. But I forgot to setup my FDTI programmer to 5V. By this the Arduino didn't have enough power to switch on the relay. It took me a while before I discovered that, because the NFR24L01+ antenna was working just fine.

                                  Before I add an external power source to an Arduino, I always feed the Arduino through the USB of my computer. In my experience it has always supplied enough power for controlling a relay state. You could try it, just to eliminate power supply issues.

                                  Just a few tips for you my friend. I hope you'll be able to find the cause of your troubles really soon.

                                  Take care.

                                  hi thank you for help me , connected the in1 to pin3 and in2 to pin4 , but pin 4 work and 3 dont work ! (voltag Priority is pin 3 , is this true ? but pin 3 is off and pin4 is work !! also i change pin3 and 4 so other relay is work and other one connect to pin3 dont work ! i test this with a adaptor 5V and 1A but dont work , do need i use a adaptor with more amper ?
                                  also i use a "ClearEepromConfig" program for my arduino and program relay again but dont work again...
                                  ( my arduino is a arduino nano )

                                  TheoLT Offline
                                  TheoLT Offline
                                  TheoL
                                  Contest Winner
                                  wrote on last edited by
                                  #27

                                  @Reza what happens if you connect pin 3 to in2 and pin 4 to in1? That's the easiest way to check your relay. I'm not an expert. Buy my guess is, that if there's a power problem, you wouldn't be able to control any one of the relays. But maybe someone with more knowledge will be able to confirm or deny that,

                                  R 1 Reply Last reply
                                  1
                                  • TheoLT TheoL

                                    @Reza what happens if you connect pin 3 to in2 and pin 4 to in1? That's the easiest way to check your relay. I'm not an expert. Buy my guess is, that if there's a power problem, you wouldn't be able to control any one of the relays. But maybe someone with more knowledge will be able to confirm or deny that,

                                    R Offline
                                    R Offline
                                    Reza
                                    wrote on last edited by
                                    #28

                                    @TheoL said:

                                    what happens if you connect pin 3 to in2 and pin 4 to in1? That's the easiest way to check your relay. I'm not an expert. Buy my guess is, that if there's a power problem, you wouldn't be able to control any one of the relays. But maybe someone with more knowledge will be able to confirm or deny that,

                                    Each relay connect to pin 4 is correct ,and each relay connect to pin 3 is not correct, ok thank you :(

                                    TheoLT 1 Reply Last reply
                                    0
                                    • R Reza

                                      @TheoL said:

                                      what happens if you connect pin 3 to in2 and pin 4 to in1? That's the easiest way to check your relay. I'm not an expert. Buy my guess is, that if there's a power problem, you wouldn't be able to control any one of the relays. But maybe someone with more knowledge will be able to confirm or deny that,

                                      Each relay connect to pin 4 is correct ,and each relay connect to pin 3 is not correct, ok thank you :(

                                      TheoLT Offline
                                      TheoLT Offline
                                      TheoL
                                      Contest Winner
                                      wrote on last edited by
                                      #29

                                      @Reza I'm not sure. But if I understand you correctly, my gut feeling is that your pin 3 on the Arduino is broken (or not correctly setup in the code). Could be a power issue, but I seriously doubt it.

                                      Just try the blink sketch example. Hookup an LED to pin 3 and change the BLINK_LED pin to pin 3 instead of 13. That way you can check if pin 3 is working correctly.

                                      R 1 Reply Last reply
                                      1
                                      • TheoLT TheoL

                                        @Reza I'm not sure. But if I understand you correctly, my gut feeling is that your pin 3 on the Arduino is broken (or not correctly setup in the code). Could be a power issue, but I seriously doubt it.

                                        Just try the blink sketch example. Hookup an LED to pin 3 and change the BLINK_LED pin to pin 3 instead of 13. That way you can check if pin 3 is working correctly.

                                        R Offline
                                        R Offline
                                        Reza
                                        wrote on last edited by
                                        #30

                                        @TheoL said:

                                        @Reza I'm not sure. But if I understand you correctly, my gut feeling is that your pin 3 on the Arduino is broken (or not correctly setup in the code). Could be a power issue, but I seriously doubt it.

                                        Just try the blink sketch example. Hookup an LED to pin 3 and change the BLINK_LED pin to pin 3 instead of 13. That way you can check if pin 3 is working correctly.

                                        i change code to :
                                        #define RELAY_1 4
                                        #define NUMBER_OF_RELAYS 2
                                        and in wiring in1=pin4 and in2=pin5
                                        so pin 5 is working but pin4 is not work !!!

                                        TheoLT 1 Reply Last reply
                                        0
                                        • R Reza

                                          @TheoL said:

                                          @Reza I'm not sure. But if I understand you correctly, my gut feeling is that your pin 3 on the Arduino is broken (or not correctly setup in the code). Could be a power issue, but I seriously doubt it.

                                          Just try the blink sketch example. Hookup an LED to pin 3 and change the BLINK_LED pin to pin 3 instead of 13. That way you can check if pin 3 is working correctly.

                                          i change code to :
                                          #define RELAY_1 4
                                          #define NUMBER_OF_RELAYS 2
                                          and in wiring in1=pin4 and in2=pin5
                                          so pin 5 is working but pin4 is not work !!!

                                          TheoLT Offline
                                          TheoLT Offline
                                          TheoL
                                          Contest Winner
                                          wrote on last edited by
                                          #31

                                          @Reza In that case, since it's so predictable, it's a bug in your sketch. At least that's what I think. Unfortunately I have busy weekend and week ahead, so I don't think I have the time to investigate your code. I'm really sorry. I have to check if I have a spare relay, and if I can find one I'm willing to check your sketch. But as mentioned before I can't promise that.

                                          Hopefully others might be able to help you sooner. Take care.

                                          R 1 Reply Last reply
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