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  3. 💬 AC-DC double solid state relay module

💬 AC-DC double solid state relay module

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hlk-pm01solid state relaylight switchlightacdc
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  • X XerOps

    I got a problem. I connected the board directly to ä powersource but the adapter doesnt output 5V . The part before just output 230 v just fine. Any one has any sugestions on whatsapp im missing?

    Nca78N Offline
    Nca78N Offline
    Nca78
    Hardware Contributor
    wrote on last edited by
    #201

    @XerOps do you have 230V on the input pins of the HLK ?

    X 1 Reply Last reply
    0
    • Nca78N Nca78

      @XerOps do you have 230V on the input pins of the HLK ?

      X Offline
      X Offline
      XerOps
      wrote on last edited by
      #202

      @Nca78 Well yeah, trough a completly soldered board tough, with both fuses and the varsisitator.

      1 Reply Last reply
      0
      • laucarlierL Offline
        laucarlierL Offline
        laucarlier
        wrote on last edited by
        #203

        Hi,

        Many thanks for sharing this project!

        Is this also possible to post a picture of the other side of the PCB in order to get a better idea on how the Arduino is soldered?

        Kind regards,

        tonnerre33T laucarlierL 2 Replies Last reply
        0
        • laucarlierL laucarlier

          Hi,

          Many thanks for sharing this project!

          Is this also possible to post a picture of the other side of the PCB in order to get a better idea on how the Arduino is soldered?

          Kind regards,

          tonnerre33T Offline
          tonnerre33T Offline
          tonnerre33
          Hardware Contributor
          wrote on last edited by
          #204

          @laucarlier said in 💬 AC-DC double solid state relay module:
          Hello, i have posted fiew pictures here : http://www.photorapide.com/albums/jordan/khreln/ac-dc-double-solid-state-relay-module.html

          1 Reply Last reply
          0
          • laucarlierL laucarlier

            Hi,

            Many thanks for sharing this project!

            Is this also possible to post a picture of the other side of the PCB in order to get a better idea on how the Arduino is soldered?

            Kind regards,

            laucarlierL Offline
            laucarlierL Offline
            laucarlier
            wrote on last edited by
            #205

            @laucarlier

            Hi Tonerre33,

            Thanks a lot for sharing the picture of your project!

            I really like the idea of the way you put the PSU and the arduino so that you win a lot of space!

            Kind regards,

            1 Reply Last reply
            0
            • rzyliusR Offline
              rzyliusR Offline
              rzylius
              wrote on last edited by
              #206

              Hi,

              it is very cool project. I assembled one but when I test it this is what I get:

              16:18:39.980 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;TSF:MSG:READ,101-101-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
              16:18:39.981 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;TSF:MSG:BC
              16:18:39.982 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;TSF:MSG:FPAR REQ,ID=101
              16:18:39.985 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;TSF:PNG:SEND,TO=0
              16:18:39.988 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;TSF:CKU:OK
              16:18:39.993 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;TSF:MSG:GWL OK
              16:18:40.963 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;Will not sign message for destination 101 as it does not require it
              16:18:41.004 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;!TSF:MSG:SEND,0-0-101-101,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=NACK:0
              16:18:41.010 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;TSF:MSG:READ,12-12-0,s=255,c=3,t=24,pt=1,l=1,sg=0:1
              16:18:41.013 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;TSF:MSG:PINGED,ID=12,HP=1
              16:18:41.018 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;Skipping security for command 3 type 25
              16:18:41.029 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;TSF:MSG:SEND,0-0-12-12,s=255,c=3,t=25,pt=1,l=1,sg=0,ft=0,st=OK:1
              16:18:44.038 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;TSF:MSG:READ,101-101-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
              16:18:44.039 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;TSF:MSG:BC
              16:18:44.040 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;TSF:MSG:FPAR REQ,ID=101
              16:18:44.041 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;TSF:CKU:OK,FCTRL
              16:18:44.044 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;TSF:MSG:GWL OK
              16:18:44.974 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;Will not sign message for destination 101 as it does not require it
              16:18:45.016 [DEBUG] [orsAbstractConnection$MySensorsReader] - Message from gateway received: 0;255;3;0;9;!TSF:MSG:SEND,0-0-101-101,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=NACK:0

              I guess it shows that radio has unreliable power. Please advise how should I debug?

              regards

              1 Reply Last reply
              0
              • rzyliusR Offline
                rzyliusR Offline
                rzylius
                wrote on last edited by
                #207

                The problem dissapeared when I changed 4.7uf capacitator to 47uf. works great!

                1 Reply Last reply
                0
                • rzyliusR Offline
                  rzyliusR Offline
                  rzylius
                  wrote on last edited by
                  #208

                  Where to find a sketch with temperature read?

                  mfalkviddM tonnerre33T 2 Replies Last reply
                  0
                  • rzyliusR rzylius

                    Where to find a sketch with temperature read?

                    mfalkviddM Offline
                    mfalkviddM Offline
                    mfalkvidd
                    Mod
                    wrote on last edited by
                    #209

                    @rzylius could you be a bit more specific? Do you want a way to read the temperature of the solid state relay?

                    1 Reply Last reply
                    0
                    • rzyliusR rzylius

                      Where to find a sketch with temperature read?

                      tonnerre33T Offline
                      tonnerre33T Offline
                      tonnerre33
                      Hardware Contributor
                      wrote on last edited by
                      #210

                      @rzylius https://forum.mysensors.org/topic/3671/ac-dc-double-solid-state-relay-module/197

                      1 Reply Last reply
                      1
                      • SensibleHeatS Offline
                        SensibleHeatS Offline
                        SensibleHeat
                        wrote on last edited by
                        #211

                        Hello,

                        Thank you for sharing this project. I have built it and am testing it on my outdoor lights.
                        .
                        I have three issues I can't seem to figure out and am hoping others may have had similar problems and figured out a fix.

                        First some background. I built a double relay board and have 120V 60 hz power. I am controlling it through MyNodes 2.0. I am using an unedited version of the source code. My networks includes about 7 other nodes that are only measuring temperature. Half of them are set up to be repeater nodes. I was suspicious that I may be getting interference from the other nodes causing the problem but have had the same problems with the other nodes disabled.

                        Here are the issues I am trying to fix.

                        1. I am finding that the relays will not stay in the position they are controlled to be in. Mostly they close when controlled to be open but also they are opening when controlled to be closed.
                        2. When in a closed state relay 1 flickers every few minutes. I have replaced this relay and still have the same issue.
                        3. The hardwired switch control isn't working for me work. The switch only causes a flicker in the lights.

                        Any suggestions? For me Half of the fun in the projects is trouble shooting and making them work. I'll send updates on any fixes I come across.

                        1 Reply Last reply
                        0
                        • Z Offline
                          Z Offline
                          zombiee77
                          wrote on last edited by
                          #212

                          Hi and Thank you for the Board!!!

                          My question is, kann I user an usual old fashioned Light switch or must I buy a push button??

                          1 Reply Last reply
                          0
                          • Nca78N Nca78

                            Hello,
                            this is the updated code, the list of changes at the top of the script.
                            In short :

                            • fixed initialization of hardware buttons
                            • improved debug information
                            • made temperature sensor optional (via a #define) as I think it's location on the board is not safe

                            I think the behavior of the node is fine now, it has debug for physical buttons and the script uses less program space (<12k, <8k if temp sensor is disabled: you can enable debug even with an old atmega168 pro mini :)) and less ram (514 bytes for global variables).

                            I added the temp sensor on my first board to make some tests, it's in the ceiling now in a big (10x10cm) but air-tight electric box. Both relays are switched off at the moment and I'm waiting for the temperature to stabilize, then I will try to switch the loads on and off, leave on for a long time etc etc. 28W light tube on first relay, 2x28W on the other, it should not create problem.

                            /**
                             * 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.
                             *
                             *******************************
                             *
                             * DESCRIPTION
                             *
                             * Script for double SSR relay board by Aproxx
                             * https://www.openhardware.io/view/77/AC-DC-double-solid-state-relay-module
                             * https://forum.mysensors.org/topic/3671/ac-dc-double-solid-state-relay-module
                             * Control 2 circuits either from controller or from physical buttons connected on pins 4 & 7
                             * Optional DS18b20 is connected on pin 8
                             * 
                             *  HISTORY :
                             * xx/xx/2016 original version by Aproxx
                             * 08/02/2016 upgraded to MySensors 2.0 by mr_const
                             * 08/30/2016 changes by Nca78 :
                             *        - fixed initialization of physical buttons/debouncer status
                             *        - centralized pin status change for relays in setRelayState method
                             *        - centralized debug information for state changes in one method + added debug info when changed by physical switches
                             *        - added #ifdef MY_DEBUG before each Serial.print (saves prog memory when not in debug mode) and F() macros for debug strings (saves RAM when in debug mode)
                             *        - added #define USE_TEMP_SENSOR to make temperature sensor optional (not used if line is commented)
                             *        - put back #define for repeater feature
                             *        - add #define TEMPERATURE_ROUNDING for custom temperature rounding
                            **/
                            
                            // MySensor Debug
                            //#define MY_DEBUG
                            
                            // Enables repeater functionality (relays messages from other nodes)
                            //#define MY_REPEATER_FEATURE
                            
                            // Comment line below if you don't want to use the temperature sensor
                            #define USE_TEMP_SENSOR
                            
                            #define MY_RADIO_NRF24
                            #include <MySensors.h>
                            #include <SPI.h>
                            #include <Bounce2.h>
                            
                            #define RELAY_PIN    3  // Arduino Digital I/O pin number for relay 
                            #define RELAY_PIN_2  5
                            #define BUTTON_PIN   4  // Arduino Digital I/O pin number for button 
                            #define BUTTON_PIN_2 7
                            
                            #define CHILD_ID 11 // Id of the sensor child for 1st relay
                            #define CHILD_ID_2 12 // Id of the sensor child for 2nd relay
                            
                            // Relay status
                            #define RELAY_ON 1
                            #define RELAY_OFF 0
                            
                            // Source of state change (used when printing debug information)
                            #define CHANGE_STATE_SOURCE_RADIO 0
                            #define CHANGE_STATE_SOURCE_SWITCH 1
                            
                            
                            // Temperature sensor definitions
                            #ifdef USE_TEMP_SENSOR
                            #include <OneWire.h>
                            #include <DallasTemperature.h>
                            #define ONE_WIRE_BUS 8
                            #define CHILD_DSB_ID 13 // Id of the sensor child for temperature sensor
                            #define TEMPERATURE_ROUNDING 10.f   // Change value to change rounding of temperature value: 10.f for 0.1°C change, 5.f for 0.2°C change, 2.f for 0.5°C change
                            #endif
                            
                            
                            
                            Bounce debouncer = Bounce();
                            int oldValue;
                            bool state;
                            Bounce debouncer2 = Bounce();
                            int oldValue2;
                            bool state2;
                            
                            MyMessage msg(CHILD_ID, V_LIGHT);
                            MyMessage msg2(CHILD_ID_2, V_LIGHT);
                            
                            #ifdef USE_TEMP_SENSOR
                            MyMessage msgTemp(CHILD_DSB_ID, V_TEMP);
                            OneWire oneWire(ONE_WIRE_BUS);
                            DallasTemperature sensors(&oneWire); // Pass the oneWire reference to Dallas Temperature.
                            #endif
                            
                            void presentation() {
                              // Send the sketch version information to the gateway and Controller
                              sendSketchInfo("Double Relay & Button", "0.2");
                              // Register all sensors to gw (they will be created as child devices)
                              present(CHILD_ID, S_LIGHT);
                              present(CHILD_ID_2, S_LIGHT);
                            #ifdef USE_TEMP_SENSOR
                              present(CHILD_DSB_ID, S_TEMP);
                            #endif
                            }
                            
                            void setup()
                            {
                            #ifdef USE_TEMP_SENSOR
                              sensors.begin();
                              sensors.setWaitForConversion(false);
                            #endif
                            
                              // Setup the button
                              pinMode(BUTTON_PIN, INPUT);
                              // Activate internal pull-up
                              digitalWrite(BUTTON_PIN, HIGH);
                            
                              // Setup the button
                              pinMode(BUTTON_PIN_2, INPUT);
                              // Activate internal pull-up
                              digitalWrite(BUTTON_PIN_2, HIGH);
                            
                              // After setting up the button, setup debouncer
                              debouncer.attach(BUTTON_PIN);
                              debouncer.interval(5);
                            
                              debouncer2.attach(BUTTON_PIN_2);
                              debouncer2.interval(5);
                            
                              // Set the initial values of oldValue/oldValue2 variables from status of physical switches
                              //  if this is not done the loop() will detect status change and switch the relays on or off
                              debouncer.update();
                              debouncer2.update();
                              oldValue = debouncer.read();
                              oldValue2 = debouncer2.read();
                            
                            
                              // Make sure relays are off when starting up
                              setRelayState(RELAY_PIN, RELAY_OFF);
                              // Then set relay pins in output mode
                              pinMode(RELAY_PIN, OUTPUT);
                            
                              digitalWrite(RELAY_PIN_2, RELAY_OFF);
                              // Then set relay pins in output mode
                              pinMode(RELAY_PIN_2, OUTPUT);
                            
                              // Set relay to last known state (using eeprom storage)
                              state = loadState(CHILD_ID);
                              setRelayState(RELAY_PIN, state);
                            
                              state2 = loadState(CHILD_ID_2);
                              setRelayState(RELAY_PIN_2, state2);
                            }
                            
                            
                            /*
                               Example on how to asynchronously check for new messages from gw
                            */
                            void loop()
                            {
                            #ifdef USE_TEMP_SENSOR
                              static float prevTemp = 0;
                            #endif
                            
                              debouncer.update();
                              debouncer2.update();
                              // Get the update value
                              int value = debouncer.read();
                              int value2 = debouncer2.read();
                            
                              if (value != oldValue) {
                                send(msg.set(state ? false : true), true); // Send new state and request ack back
                                // Write some debug info
                                printStateChangedDebug(CHANGE_STATE_SOURCE_SWITCH, CHILD_ID, value);
                              }
                              oldValue = value;
                            
                              if (value2 != oldValue2) {
                                send(msg2.set(state2 ? false : true), true); // Send new state and request ack back
                                // Write some debug info
                                printStateChangedDebug(CHANGE_STATE_SOURCE_SWITCH, CHILD_ID_2, value2);
                              }
                              oldValue2 = value2;
                            
                              // Fetch temperatures from Dallas sensors
                            #ifdef USE_TEMP_SENSOR
                              sensors.requestTemperatures();
                              // Fetch and round temperature to one decimal
                              float temperature = static_cast<float>(static_cast<int>(sensors.getTempCByIndex(0) * TEMPERATURE_ROUNDING)) / TEMPERATURE_ROUNDING;
                            
                              if (temperature != -127.00f && temperature != 85.00f && prevTemp != temperature) {
                                // Send in the new temperature
                                send(msgTemp.set(temperature, 1));
                            #ifdef MY_DEBUG
                                Serial.print("Sent temperature: ");
                                Serial.println(temperature);
                            #endif
                                prevTemp = temperature;
                              }
                            #endif
                            }
                            
                            void receive(const MyMessage &message) {
                              // We only expect one type of message from controller. But we better check anyway.
                              if (message.isAck()) {
                            #ifdef MY_DEBUG
                                Serial.println(F("This is an ack from gateway"));
                            #endif
                              }
                              else if (message.type == V_LIGHT && message.sensor == CHILD_ID) {
                                // Change relay state
                                state = message.getBool();
                                setRelayState(RELAY_PIN, state);
                                // Store state in eeprom
                                saveState(CHILD_ID, state);
                                // Write some debug info
                                printStateChangedDebug(CHANGE_STATE_SOURCE_RADIO, CHILD_ID, state);
                              }
                              else if (message.type == V_LIGHT && message.sensor == CHILD_ID_2) {
                                state2 = message.getBool();
                                setRelayState(RELAY_PIN_2, state2);
                                // Store state in eeprom
                                saveState(CHILD_ID_2, state2);
                                // Write some debug info
                                printStateChangedDebug(CHANGE_STATE_SOURCE_RADIO, CHILD_ID_2, state2);
                              }
                            }
                            
                            // Set status of a relay pin
                            void setRelayState(byte relayPin, bool value) {
                              digitalWrite(relayPin, value ? RELAY_ON : RELAY_OFF);
                            }
                            
                            // Print debug info, centralized in one place to minimize memory usage and have only one #ifdef MY_DEBUG for all state change messages
                            void printStateChangedDebug(int source, int sensorID, bool value) {
                            #ifdef MY_DEBUG
                              Serial.print(F("Sensor value changed, source="));
                              Serial.print(source == CHANGE_STATE_SOURCE_RADIO ? F("Radio") : F("Physical switch"));
                              Serial.print(F(", Sensor="));
                              Serial.print(sensorID);
                              Serial.print(F(", New status: "));
                              Serial.println(value);
                            #endif
                            }
                            
                            Z Offline
                            Z Offline
                            zombiee77
                            wrote on last edited by
                            #213

                            @nca78
                            I used the code and it worked well with the remote control.-
                            I can switch a LED (for testing purposes attached instead of a SSR) on and off.
                            If I want to switch the LED with a push button I fail.

                            This is what I have changed:

                            #define RELAY_PIN 4 // Arduino Digital I/O pin number for relay
                            #define RELAY_PIN_2 5
                            #define BUTTON_PIN 3 // Arduino Digital I/O pin number for button
                            #define BUTTON_PIN_2 7

                            And this is the serial output I get, after I press the button:

                            This is an ack from gateway
                            1107867 TSF:MSG:SEND,10-10-0-0,s=111,c=1,t=2,pt=1,l=1,sg=0,ft=0,st=OK:1
                            Sensor value changed, source=Physical switch, Sensor=111, New status: 0
                            1107877 TSF:MSG:READ,0-0-10,s=111,c=1,t=2,pt=1,l=1,sg=0:1
                            1107888 TSF:MSG:ACK
                            This is an ack from gateway
                            1108520 TSF:MSG:SEND,10-10-0-0,s=111,c=1,t=2,pt=1,l=1,sg=0,ft=0,st=OK:1
                            Sensor value changed, source=Physical switch, Sensor=111, New status: 1
                            1108531 TSF:MSG:READ,0-0-10,s=111,c=1,t=2,pt=1,l=1,sg=0:1
                            1108541 TSF:MSG:ACK
                            This is an ack from gateway

                            1 Reply Last reply
                            0
                            • joaoabsJ Offline
                              joaoabsJ Offline
                              joaoabs
                              wrote on last edited by
                              #214

                              Hi,
                              Any particular reason for the values of the thermal cut-offs? (73ºC, 10A)?
                              This temperature (73ºC) makes it difficult to solder, I've burned a couple when trying to solder it... And why 10A? Shouldn't we get a lower current? I know the other fuse is limiting the current to 0.2A, but if we have a lower current on this one we may get cheaper components... Wouldn't this one, for instance, do the same function? https://www.ebay.com/itm/10-Pcs-Fuji-Microtemp-Thermal-Fuse-115-TF-Cutoff-1A-250V-New/322657006381

                              If the PCB is inside a box, without any lossen wires, couldn't we limit the temperature to a sliglhly higher value (115ºC)?

                              Thanks

                              Nca78N 1 Reply Last reply
                              1
                              • joaoabsJ joaoabs

                                Hi,
                                Any particular reason for the values of the thermal cut-offs? (73ºC, 10A)?
                                This temperature (73ºC) makes it difficult to solder, I've burned a couple when trying to solder it... And why 10A? Shouldn't we get a lower current? I know the other fuse is limiting the current to 0.2A, but if we have a lower current on this one we may get cheaper components... Wouldn't this one, for instance, do the same function? https://www.ebay.com/itm/10-Pcs-Fuji-Microtemp-Thermal-Fuse-115-TF-Cutoff-1A-250V-New/322657006381

                                If the PCB is inside a box, without any lossen wires, couldn't we limit the temperature to a sliglhly higher value (115ºC)?

                                Thanks

                                Nca78N Offline
                                Nca78N Offline
                                Nca78
                                Hardware Contributor
                                wrote on last edited by
                                #215

                                Hello @joaoabs,

                                I think it is based on measurements here :
                                https://lygte-info.dk/review/Power Mains to 5V 0.6A Hi-Link HLK-PM01 UK.html

                                As you can see when he tests at full load (0.6A) for a long time, max temperature is a bit over 60°C. So temperature should not be too much higher than that if you want to detect abnormal overheating. 115° is higher than what is measured at the hottest point on the top of the enclosure after 15mn overloading at twice the maximum load, so I don't think it's safe to use a temp fuse that high.

                                For the max current there might be a short inrush current when switching on, so 1A could be a bit low (and that's why the other fuse is a slow blow fuse), but feel free to try and report :)

                                1 Reply Last reply
                                0
                                • T Offline
                                  T Offline
                                  TomG
                                  wrote on last edited by
                                  #216

                                  This looks like a great PCB and I'm interested in ordering a few from DirtyPCBs, however OpenHardware.io shows this project as "Work in Progress". Are there any plans to do additional updates to this PCB?

                                  1 Reply Last reply
                                  1
                                  • D Offline
                                    D Offline
                                    Damian
                                    wrote on last edited by Damian
                                    #217

                                    Hi,
                                    did you consider redesigning the PCB using mini nrf24l01+ like this:
                                    alt text
                                    It could compact the size of the whole device. Moreover it would be great to have GND and Vcc (3.3V or 5V), and 4 GPIO (ie. 2 analog, 2 digital) pins led out on the PCB (there are 6 holes on the edge not used as I understand?). It would be great to have an option to connect some additional sensors (I use 2 dht22 sensors for environment monitoring in some projects).

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                                    • Z Offline
                                      Z Offline
                                      zombiee77
                                      wrote on last edited by
                                      #218

                                      Unfortunately the Bottom copper layer is corrupted.
                                      Anybody has a good file for me?

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                                      • TmasterT Offline
                                        TmasterT Offline
                                        Tmaster
                                        wrote on last edited by Tmaster
                                        #219

                                        how is the board and specially the hlk-pm01 transformer,that is the component that i need more trust ,after 3 years of work?

                                        i want to make some rolle shutter controllers to replace the expensive and buggy fibaro FGR-223 new modules.

                                        i'm a arduino fan .Even sometimes don't undestanding how to use it :P

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                                        • ilium007I Offline
                                          ilium007I Offline
                                          ilium007
                                          wrote on last edited by
                                          #220

                                          What varistor should I use for 240VAC in Australia? The linked AliExpress item is no longer available.

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