RS485/RS232/Serial transport class for mysensors.org
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@LeoDesigner My 1.5.2 RS485 Humidity sensor send the same messages as the example Humidity sketch, but shows a lot of 'X' and '?' characters at 115200 in Serial Console.
The console with the example Humidity sketch is clean:
sensor started, id=1, parent=0, distance=1 send: 1-1-0-0 s=255,c=3,t=11,pt=0,l=8,sg=0,st=ok:Humidity send: 1-1-0-0 s=255,c=3,t=12,pt=0,l=3,sg=0,st=ok:1.0 send: 1-1-0-0 s=0,c=0,t=7,pt=0,l=0,sg=0,st=ok: send: 1-1-0-0 s=1,c=0,t=6,pt=0,l=0,sg=0,st=ok: send: 1-1-0-0 s=1,c=1,t=0,pt=7,l=5,sg=0,st=ok:26.0 T: 26.00 send: 1-1-0-0 s=0,c=1,t=1,pt=7,l=5,sg=0,st=ok:44.0 H: 44.00Do you know what can be causing it? Am I doing anything wrong, again?
#include <SPI.h> #include <MySensor.h> #include <DHT.h> #include <MyHwATMega328.h> #include <SerialTransport.h> #define CHILD_ID_HUM 0 #define CHILD_ID_TEMP 1 #define HUMIDITY_SENSOR_DIGITAL_PIN 3 unsigned long SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds) MyTransportSerial transport(Serial,5,2); MyHwATMega328 hw; MySensor gw(transport, hw); DHT dht; float lastTemp; float lastHum; boolean metric = true; MyMessage msgHum(CHILD_ID_HUM, V_HUM); MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP); void setup() { gw.begin(); dht.setup(HUMIDITY_SENSOR_DIGITAL_PIN); // Send the Sketch Version Information to the Gateway gw.sendSketchInfo("Humidity", "1.0"); // Register all sensors to gw (they will be created as child devices) gw.present(CHILD_ID_HUM, S_HUM); gw.present(CHILD_ID_TEMP, S_TEMP); metric = gw.getConfig().isMetric; } void loop() { delay(dht.getMinimumSamplingPeriod()); float temperature = dht.getTemperature(); if (isnan(temperature)) { Serial.println("Failed reading temperature from DHT"); } else if (temperature != lastTemp) { lastTemp = temperature; if (!metric) { temperature = dht.toFahrenheit(temperature); } gw.send(msgTemp.set(temperature, 1)); Serial.print("T: "); Serial.println(temperature); } float humidity = dht.getHumidity(); if (isnan(humidity)) { Serial.println("Failed reading humidity from DHT"); } else if (humidity != lastHum) { lastHum = humidity; gw.send(msgHum.set(humidity, 1)); Serial.print("H: "); Serial.println(humidity); } gw.sleep(SLEEP_TIME); //sleep a bit }@elmarculino
My library is using a standard hardware serial port of arduino - you have to disable debug option in MySensors config and use the serial port only for RS485. The 'garbage' you are receiving are actual binary communication packets intended only for RS485 bus. You have to disconnect your serial to usb adapter in case if you are using Arduino Pro. Please take a closer look to the video and schematic coming with the library. You can use and 'sniff' your serial console - but you must to disable any additional serial debug prints to the console in production mode. Remember - your serial console is a RS485 bus with this library. -
@radekzm
OK, what I did:
on one Arduino nano I have this sketch
https://github.com/mysensors/Arduino/blob/development/libraries/MySensors/examples/GatewaySerialRS485/GatewaySerialRS485.ino
on second arduino nano I have conbined two sketches:
https://github.com/mysensors/Arduino/blob/development/libraries/MySensors/examples/DistanceSensor/DistanceSensor.ino
and
https://github.com/mysensors/Arduino/blob/development/libraries/MySensors/examples/MotionSensorRS485/MotionSensorRS485.ino
and the results is:/** * 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 * This is an example of sensors using RS485 as transport layer * * Motion Sensor example using HC-SR501 * http://www.mysensors.org/build/motion * * The transport uses AltSoftSerial to handle two serial links * on one Arduino. Use the following pins for RS485 link * * Board Transmit Receive PWM Unusable * ----- -------- ------- ------------ * Teensy 3.0 & 3.1 21 20 22 * Teensy 2.0 9 10 (none) * Teensy++ 2.0 25 4 26, 27 * Arduino Uno 9 8 10 * Arduino Leonardo 5 13 (none) * Arduino Mega 46 48 44, 45 * Wiring-S 5 6 4 * Sanguino 13 14 12 * * */ // Enable RS485 transport layer #define MY_RS485 // Define this to enables DE-pin management on defined pin #define MY_RS485_DE_PIN 2 // Set RS485 baud rate to use #define MY_RS485_BAUD_RATE 9600 #include <SPI.h> #include <MySensor.h> #include <NewPing.h> #define CHILD_ID 1 #define TRIGGER_PIN 5 // Arduino pin tied to trigger pin on the ultrasonic sensor. #define ECHO_PIN 6 // Arduino pin tied to echo pin on the ultrasonic sensor. #define MAX_DISTANCE 300 // Maximum distance we want to ping for (in centimeters). Maximum sensor distance is rated at 400-500cm. unsigned long SLEEP_TIME = 5000; // Sleep time between reads (in milliseconds) NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup of pins and maximum distance. MyMessage msg(CHILD_ID, V_DISTANCE); int lastDist; boolean metric = true; void setup() { metric = getConfig().isMetric; } void presentation() { // Send the sketch version information to the gateway and Controller sendSketchInfo("Distance Sensor", "1.0"); // Register all sensors to gw (they will be created as child devices) present(CHILD_ID, S_DISTANCE); } void loop() { int dist = metric?sonar.ping_cm():sonar.ping_in(); Serial.print("Ping: "); Serial.print(dist); // Convert ping time to distance in cm and print result (0 = outside set distance range) Serial.println(metric?" cm":" in"); if (dist != lastDist) { send(msg.set(dist)); lastDist = dist; } sleep(SLEEP_TIME); }On serial port (/dev/ttyUSB0) Controller (first nano) I see:
0;255;3;0;9;Starting gateway (RSNGA-, 2.0.0-beta)
0;255;3;0;9;Radio init successful.
0;255;3;0;14;Gateway startup complete.
0;255;3;0;9;Init complete, id=0, parent=0, distance=0on serial port(/dev/ttyUSB1) in node is see:
...
Ping: 33 cm
Ping: 34 cm
Ping: 34 cm
Ping: 33 cm
Ping: 33 cm
Ping: 33 cm
Ping: 5 cm
Ping: 91 cm
Ping: 88 cm
Ping: 89 cm
......But I expect to see some message on controller. What can I check? Do you see and mistakes ?
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Hi,
I am new in mysensors and arduino however I already use domoticz with mysensors and rflink.
Everything is working fine however now I plan to renovate my house and I would like to put wire connection using max485 and arduino. Problem is that it is now working :( I have tried 1.5.4 version and also development branch. It seems that signal is not getting to gateway. I nothing see on arduino gateway except of initalization gateway. I have started to use two nano but I also tried combination nano and mega without success. I would be very appreciate if someone who done it could more describe how to make that it works.
I tried https://arduino-info.wikispaces.com/SoftwareSerialRS485Example and it works fine.
I use for nano combination pins 2 (de/re), 8 (ro),9(di) -
Hi,
I am new in mysensors and arduino however I already use domoticz with mysensors and rflink.
Everything is working fine however now I plan to renovate my house and I would like to put wire connection using max485 and arduino. Problem is that it is now working :( I have tried 1.5.4 version and also development branch. It seems that signal is not getting to gateway. I nothing see on arduino gateway except of initalization gateway. I have started to use two nano but I also tried combination nano and mega without success. I would be very appreciate if someone who done it could more describe how to make that it works.
I tried https://arduino-info.wikispaces.com/SoftwareSerialRS485Example and it works fine.
I use for nano combination pins 2 (de/re), 8 (ro),9(di) -
@m26872
I'm sorry and promises to improve :)@Mariusz
In my case the solution was in MyConfig.h file (in my case C:\Program Files (x86)\Arduino\libraries\MySensors):-
Disable function MY_DISABLED_SERIAL
commenting lines 49
// #define MY_DISABLED_SERIAL -
Disable function MY_DEBUG
commenting lines 36
//#define MY_DEBUG -
Correct connection is on my pictures enclosed in the above comment
Board | Transmit | Receive | PWM Unusable
Arduino Uno | 9 | 8 | 10 <----- Form https://www.pjrc.com/teensy/td_libs_AltSoftSerial.html .... (& other ATMEGA328)
Arduino Leonardo | 5 | 13 | (none)
Arduino Mega | 46 | 48 | 44, 45DE and RE -> Pin 2
RO -> Pin 8
DI -> Pin 9-
To check the hardware and connections run the "Example Program" from https://www.pjrc.com/teensy/td_libs_AltSoftSerial.html
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Use development branch
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Hi everyone !
I needed a wired solution for my several nodes.
Here is the serial rs485/rs232 wired network transport for mysensors.
https://github.com/leodesigner/mysensors-serial-transport
It is based on the Majenko ICSC serial library.
Can you please test it? It is a beta version - but it is working for me.
(However, I am still waiting for my rs485 boards to arrive)
You can find more technical information at
http://sourceforge.net/p/arduino-icsc/wiki/RS-485/To use it, you have to:
- Put SerialTransport.cpp and SerialTransport.h to folder/directory/path SerialTransport in your library.
- Add #include <SerialTransport.h> to your .ino sketch
- Replace transport class with:
MyTransportSerial transport(Serial,0,-1); // serial port, node, dePin (-1 disabled)
Please let me know about bugs and how it is working for you.
@LeoDesigner
Hi, I am trying to do almost the same, but I would like to use softwareSerial instead of altsoft. The reason why I would do this is that i can barely fit the arduino nano inside my case, and an additional rs485 module would not fit and that I have 8 nodes connected on the softwareserial . I have tested software serial on arduino and it seems to work fine up to 15meters, I also adjusted the baudrate to 9600 since my node does not send out/receive large amount of data. I read that you did some work on software serial and were wondering if you could take a look at this thread. -
Is there any how-to's on this transport class as far as the hardware goes? How does it work with multiple nodes? Is it like a ring pattern? or do all the nodes have to have a dedicated connection to the gateway.
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Is it possible, to built a esp8266 wifi gateway and communicate GW to node with rs485?
In altsoft esp8266 is not decleared, so i can't use it out of the box.Btw: I tested my_rs485 with nano as GW and Pro Mini as node, and it worked great. Thank you :)
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@hausinger if you know about coding..
- plain C lib for esp8266, it can be adapted to work with Arduino Esp: https://github.com/plieningerweb/esp8266-software-uart
- or use stock arduino esp8266 software serial lib (https://github.com/plerup/espsoftwareserial), and inspire yourself from lib above, and code your CE pin management..
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How about adding the following define to use the Serial1/2 on Mega. I have not tested yet but assuming the AltSoftSerial lib has the same interface/functionality it should work.
#define MY_RS485_SERIAL Serial1diff --git a/core/MyTransportRS485.cpp b/core/MyTransportRS485.cpp index 814f721..ea35c9e 100644 --- a/core/MyTransportRS485.cpp +++ b/core/MyTransportRS485.cpp @@ -92,7 +92,11 @@ unsigned char _recSender; unsigned char _recCS; unsigned char _recCalcCS; +#if defined(MY_RS485_SERIAL) +HardwareSerial& _dev = MY_RS485_SERIAL; +#else AltSoftSerial _dev; +#endif unsigned char _nodeId; -
@hek Thanks for the quick response. I'm looking for some direction (this might not be the right forum).
I want to create a node to control my Itho Ecofan ventilation box. I now have a working program (thanks to the help of Rogier Reedijk The nodo now uses a CC1101 transceiver to control the box and thus uses the SPI bus. I'm looking for some direction to use this transmitter as part of my sensor network so I can control it from my Domoticz. Hope you can give me some directions how to proceed.
