Hi,

I have been using MySensors with Home Assistant successfully for a few months now. I feel like I have a pretty good grasp on how to get the sensor (Arduino) to report a value to Home Assistant (RPi) over MQTT.

The next step I'm trying to do is getting the sensor to do something based on a switch in Home Assistant.

Basically what I want to do is use the Arduino to transmit a code via RF to control a Watts Clever RF power relay. I've already got the Arduino doing this based on a motion sensor but the only MySensor integration is reporting to HA what the status of the relay is.

I've tried re purposing the relay actuator code for my use but the code is a bit beyond my Arduino coding knowledge. I just want to send a message from Home Assistant which is read by the Arduino and code is then run based on what that message says (eg on, off).

Is there a tutorial or similar that anyone can link me to? My googling only results in complicated examples for particular things. I just need the bare bones so I can add what I want.

I know this would not work because I made most of it up, but this is the type of thing I think I'm looking for:

void receive(const MyMessage &message) {
    if (message.type == V_STATUS) {   // check for switch status
status=message;    // This is where I start making up stuff to convey my intent
if status == 'on'
{
 mySwitch.send("110011110011000101010101");    \\Send RF code
 digitalWrite(13,HIGH);
 delay(500);
 digitalWrite(13,LOW);
 delay(1000);
  Serial.println("on");
  }
else {
mySwitch.send("110011110011000101011101");   \\Send RF code
 digitalWrite(13,HIGH);
 delay(500);
 digitalWrite(13,LOW);
 delay(1000);
  Serial.println("off");
}
}

Also, what would I actually add to Home Assistant to make a switch (or button) send a line of MQTT to the sensor, and what would that line be?

Sorry if this is a difficult and vague question to answer. I'm not expecting someone to explain how the whole thing works or write my code for me but any similar examples or links to tutorials would be very helpful.

Thanks.

Ps, just for reference here is my working code as it currently stands:

// Enable debug prints
//#define MY_DEBUG
#define MY_CONTROLLER_IP_ADDRESS 192, 168, 1, 141
#define MY_PORT 1883
#define MY_MQTT_CLIENT_ID "mysensors-1"
#define MY_MQTT_PUBLISH_TOPIC_PREFIX "mygateway1-out"
#define MY_MQTT_SUBSCRIBE_TOPIC_PREFIX "mygateway1-in"
// Enable and select radio type attached
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69


//RF Codes here
//Shed Lights attached to WATTS CLEVER 13578589
#define shedlighton "110011110011000101011101"
#define shedlightoff "110011110011000101010101"

#include <MySensors.h>
#include <RCSwitch.h>
#include <SPI.h>
unsigned long SLEEP_TIME = 12000; // Sleep time between reports (in milliseconds)
#define DIGITAL_INPUT_SENSOR 3   // The digital input you attached your motion sensor.  (Only 2 and 3 generates interrupt!)

#define CHILD_ID 1

// Initialize motion message
MyMessage msgtrip(CHILD_ID, V_TRIPPED);
MyMessage msglight(CHILD_ID, V_LIGHT);
MyMessage msgrain(CHILD_ID, V_TEXT);

RCSwitch mySwitch = RCSwitch();

long previousTime = 0;        
long interval = 5000;   
int recentmotion = 0;
unsigned long currentTime = 0;
unsigned long differentTime = 0;

const int sensorMin = 0;     // sensor minimum
const int sensorMax = 1024;  // sensor maximum

void setup()
{
	pinMode(DIGITAL_INPUT_SENSOR, INPUT);      // sets the motion sensor digital pin as input
	// Transmitter is connected to Arduino Pin #10 
	mySwitch.enableTransmit(4);

 // Optional set pulse length.
 mySwitch.setPulseLength(321);
}

void presentation()
{
	// Send the sketch version information to the gateway and Controller
	sendSketchInfo("Motion Sensor Plus", "1.0");

	// Register all sensors to gw (they will be created as child devices)
	present(1, S_MOTION);
}

void loop()
{
          Serial.println(millis());
if(millis() > 20000 && digitalRead(DIGITAL_INPUT_SENSOR) == LOW){
  if(millis() > differentTime){
    recentmotion = 0;
           send(msglight.set("Off"));
        previousTime = currentTime; 
          Serial.print("recentmotion=");
          Serial.println(recentmotion);
  }
}
  if(recentmotion == 0) {
   
 mySwitch.send(shedlightoff);
 digitalWrite(13,HIGH);
 delay(500);
 digitalWrite(13,LOW);
 delay(1000);
  Serial.println("off");
  }
	// Read digital motion value
	bool tripped = digitalRead(DIGITAL_INPUT_SENSOR) == HIGH;

	Serial.println(tripped);
	send(msgtrip.set(tripped?"1":"0"));  // Send tripped value to gw
  if(digitalRead(DIGITAL_INPUT_SENSOR) == HIGH){
      Serial.println("on");
   mySwitch.send(shedlighton);
 digitalWrite(13,HIGH);
 delay(500);
 digitalWrite(13,LOW);
 delay(2000); 
       recentmotion = 1;
       send(msglight.set("On"));
        differentTime = millis() + 20;
        Serial.print("differentTime=");
                Serial.println(differentTime);
      Serial.print("recentmotion=");
                Serial.println(recentmotion);
  }
// rain sensor


// read the sensor on analog A0:
  int sensorReading = analogRead(A0);
  // map the sensor range (four options):
  // ex: 'long int map(long int, long int, long int, long int, long int)'
  int range = map(sensorReading, sensorMin, sensorMax, 0, 3);
  
  // range value:
  switch (range) {
 case 0:    // Sensor getting wet
    Serial.println("Flood");
    send(msgrain.set("Yes, heavy rain"));
    break;
 case 1:    // Sensor getting wet
    Serial.println("Rain Warning");
    send(msgrain.set("Light rain detected"));
    break;
 case 2:    // Sensor dry - To shut this up delete the " Serial.println("Not Raining"); " below.
    Serial.println("Not Raining");
    send(msgrain.set("No, it's not raining"));
    break;
  }


	// Sleep until interrupt comes in on motion sensor. Send update every two minute.
	sleep(digitalPinToInterrupt(DIGITAL_INPUT_SENSOR), CHANGE, SLEEP_TIME);
}

You are all actually amazing and I appreciate your time. Thanks.

Reinstalled. It all went smoothly. Still sending 0 bytes of data.

You're onto something I reckon, but I'm still not sure what! This might make more sense to you:

So my MQTT shows this:

Client mosqsub/2384-raspberryp received PUBLISH (d0, q0, r0, m0, 'mysensors-out/0/255/0/0/18', ... (5 bytes))
2.1.1
Client mosqsub/2384-raspberryp received PUBLISH (d0, q0, r0, m0, 'mysensors-out/255/255/3/0/3', ... (0 bytes))
Client mosqsub/2384-raspberryp received PUBLISH (d0, q0, r0, m0, 'mysensors-out/255/255/3/0/3', ... (0 bytes))
Client mosqsub/2384-raspberryp received PUBLISH (d0, q0, r0, m0, 'mysensors-out/255/255/3/0/3', ... (0 bytes))
Client mosqsub/2384-raspberryp received PUBLISH (d0, q0, r0, m0, 'mysensors-out/255/255/3/0/3', ... (0 bytes))
Client mosqsub/2384-raspberryp received PUBLISH (d0, q0, r0, m0, 'mysensors-out/255/255/3/0/3', ... (0 bytes))
Client mosqsub/2384-raspberryp received PUBLISH (d0, q0, r0, m0, 'mysensors-out/255/255/3/0/3', ... (0 bytes))
Client mosqsub/2384-raspberryp received PUBLISH (d0, q0, r0, m0, 'mysensors-out/255/255/3/0/3', ... (0 bytes))

My Sensors did this:

pi@raspberrypi:~/MySensors $ sudo ./bin/mysgw -d
mysgw: Starting gateway...
mysgw: Protocol version - 2.1.1
mysgw: MCO:BGN:INIT GW,CP=RNNG---,VER=2.1.1
mysgw: TSF:LRT:OK
mysgw: TSM:INIT
mysgw: TSF:WUR:MS=0
mysgw: TSM:INIT:TSP OK
mysgw: TSM:INIT:GW MODE
mysgw: TSM:READY:ID=0,PAR=0,DIS=0
mysgw: MCO:REG:NOT NEEDED
mysgw: MCO:BGN:STP
mysgw: MCO:BGN:INIT OK,TSP=1
mysgw: Attempting MQTT connection...
mysgw: connected to 127.0.0.1
mysgw: MQTT connected
mysgw: Sending message on topic: mysensors-out/0/255/0/0/18
mysgw: TSF:MSG:READ,255-255-0,s=255,c=3,t=3,pt=0,l=0,sg=0:
mysgw: Sending message on topic: mysensors-out/255/255/3/0/3
mysgw: TSF:MSG:READ,255-255-0,s=255,c=3,t=3,pt=0,l=0,sg=0:
mysgw: Sending message on topic: mysensors-out/255/255/3/0/3
mysgw: send: Broken pipe
mysgw: Attempting MQTT connection...
mysgw: connected to 127.0.0.1
mysgw: MQTT connected
mysgw: Sending message on topic: mysensors-out/0/255/0/0/18
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,7!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32
mysgw: TSF:MSG:READ,7-7-7,s=7,c=7,t=7,pt=0,l=0,sg=1:
mysgw: !TSF:MSG:LEN,0!=32

Then the Arduino Serial shows a fail to connect and nothing happens:

0 MCO:BGN:INIT NODE,CP=RNNNA--,VER=2.1.1
3 MCO:BGN:BFR
5 TSM:INIT
6 TSF:WUR:MS=0
13 TSM:INIT:TSP OK
15 TSM:FPAR
17 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
2024 !TSM:FPAR:NO REPLY
2026 TSM:FPAR
2028 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
4036 !TSM:FPAR:NO REPLY
4038 TSM:FPAR
4040 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
6048 !TSM:FPAR:NO REPLY
6050 TSM:FPAR
6052 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
8061 !TSM:FPAR:FAIL
8062 TSM:FAIL:CNT=1
8065 TSM:FAIL:PDT
18068 TSM:FAIL:RE-INIT
18070 TSM:INIT
18077 TSM:INIT:TSP OK
18079 TSM:FPAR
18081 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
20089 !TSM:FPAR:NO REPLY
20091 TSM:FPAR
20093 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
22102 !TSM:FPAR:NO REPLY
22104 TSM:FPAR
22106 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
24114 !TSM:FPAR:NO REPLY
24116 TSM:FPAR
24118 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
26126 !TSM:FPAR:FAIL
26127 TSM:FAIL:CNT=2
26129 TSM:FAIL:PDT
36132 TSM:FAIL:RE-INIT
36134 TSM:INIT
36142 TSM:INIT:TSP OK
36144 TSM:FPAR
36146 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
38154 !TSM:FPAR:NO REPLY
38156 TSM:FPAR
38158 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
40166 !TSM:FPAR:NO REPLY
40168 TSM:FPAR
40170 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
42178 !TSM:FPAR:NO REPLY
42180 TSM:FPAR
42182 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
44190 !TSM:FPAR:FAIL
44191 TSM:FAIL:CNT=3
44193 TSM:FAIL:PDT
54196 TSM:FAIL:RE-INIT
54198 TSM:INIT
54205 TSM:INIT:TSP OK
54207 TSM:FPAR
54209 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
56217 !TSM:FPAR:NO REPLY
56219 TSM:FPAR
56221 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
58229 !TSM:FPAR:NO REPLY
58231 TSM:FPAR
58233 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
60242 !TSM:FPAR:NO REPLY
60244 TSM:FPAR
60247 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
62255 !TSM:FPAR:FAIL
62256 TSM:FAIL:CNT=4
62258 TSM:FAIL:PDT
72261 TSM:FAIL:RE-INIT
72263 TSM:INIT
72270 TSM:INIT:TSP OK
72272 TSM:FPAR
72274 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
72290 TSF:MSG:READ,0-0-255,s=255,c=3,t=8,pt=1,l=1,sg=0:0
72295 TSF:MSG:FPAR OK,ID=0,D=1
74283 TSM:FPAR:OK
74284 TSM:ID
74285 TSM:ID:REQ
74288 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
76296 TSM:ID
76297 TSM:ID:REQ
76300 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
78307 TSM:ID
78308 TSM:ID:REQ
78311 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
80318 TSM:ID
80319 TSM:ID:REQ
80322 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
82329 !TSM:ID:FAIL
82330 TSM:FAIL:CNT=5
82332 TSM:FAIL:PDT
92335 TSM:FAIL:RE-INIT
92337 TSM:INIT
92344 TSM:INIT:TSP OK
92346 TSM:FPAR
92348 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
92983 TSF:MSG:READ,0-0-255,s=255,c=3,t=8,pt=1,l=1,sg=0:0
92988 TSF:MSG:FPAR OK,ID=0,D=1
94356 TSM:FPAR:OK
94357 TSM:ID
94359 TSM:ID:REQ
94361 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
96369 TSM:ID
96370 TSM:ID:REQ
96373 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
98380 TSM:ID
98381 TSM:ID:REQ
98384 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
100392 TSM:ID
100393 TSM:ID:REQ
100397 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
102404 !TSM:ID:FAIL
102405 TSM:FAIL:CNT=6
102408 TSM:FAIL:PDT
112410 TSM:FAIL:RE-INIT
112412 TSM:INIT
112419 TSM:INIT:TSP OK
112421 TSM:FPAR
112424 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
112640 TSF:MSG:READ,0-0-255,s=255,c=3,t=8,pt=1,l=1,sg=0:0
112645 TSF:MSG:FPAR OK,ID=0,D=1
114432 TSM:FPAR:OK
114433 TSM:ID
114435 TSM:ID:REQ
114438 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
116445 TSM:ID
116446 TSM:ID:REQ
116449 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
118456 TSM:ID
118457 TSM:ID:REQ
118460 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
120467 TSM:ID
120468 TSM:ID:REQ
120471 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
122478 !TSM:ID:FAIL
122479 TSM:FAIL:CNT=7
122482 TSM:FAIL:PDT
182484 TSM:FAIL:RE-INIT
182487 TSM:INIT
182494 TSM:INIT:TSP OK
182496 TSM:FPAR
182499 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
184506 !TSM:FPAR:NO REPLY
184508 TSM:FPAR
184511 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
186518 !TSM:FPAR:NO REPLY
186520 TSM:FPAR
186523 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
188530 !TSM:FPAR:NO REPLY
188532 TSM:FPAR
188535 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
190542 !TSM:FPAR:FAIL
190544 TSM:FAIL:CNT=7
190546 TSM:FAIL:PDT
250549 TSM:FAIL:RE-INIT
250551 TSM:INIT
250558 TSM:INIT:TSP OK
250560 TSM:FPAR
250563 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
252570 !TSM:FPAR:NO REPLY
252572 TSM:FPAR
252575 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
254582 !TSM:FPAR:NO REPLY
254584 TSM:FPAR
254587 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
256595 !TSM:FPAR:NO REPLY
256598 TSM:FPAR
256601 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
258608 !TSM:FPAR:FAIL
258610 TSM:FAIL:CNT=7
258612 TSM:FAIL:PDT
318615 TSM:FAIL:RE-INIT
318617 TSM:INIT
318624 TSM:INIT:TSP OK
318626 TSM:FPAR
318629 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
320637 !TSM:FPAR:NO REPLY
320640 TSM:FPAR
320643 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
322650 !TSM:FPAR:NO REPLY
322652 TSM:FPAR
322655 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
324662 !TSM:FPAR:NO REPLY
324664 TSM:FPAR
324667 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
326674 !TSM:FPAR:FAIL
326676 TSM:FAIL:CNT=7
326678 TSM:FAIL:PDT

Unless you can work out anything specific, I'll try reinstalling MySensors on my Pi. The initial installation did not go smoothly. I just figured that if it was working fine with the Uno, it was working fine full stop.

I did try this. It is sending 4 messages before failing. I'm not really sure what this means though?

Hi,

I've been using MySensors with HomeAssistant fairly successfully, testing on my Arduino Uno (Genuine).

Everything works fine with the UNO, so I purchased some no so genuine Arduino Nanos and Pro Mini (5v and 3.3v version). With all of these boards I've had an issue of never being able to receive any usable data from the sensors.

I will explain with my most current example which I have poured hours into with no luck:

I have set up my UNO with the temperature sketch which works a treat using the waterproof DS18B20. I copied the exact same sketch with the exact same connections to an Arduino Pro Mini 3.3v and it seems to work through MQTT but I'm always receiving no actual data. Where it should show "13.2" for example, it shows "".

I changed to the Arduino Pro Mini 5v with a 3.3v regulator and it does the exact same thing.

When I warm the sensor up with my hand it shoots off lots of messages as if the code has recognised the change in temp but all of those messages have "".

This happened on a previous project when I tried a Nano. Everything seems to work, but no data!

I've tried different radios etc but it doesn't seem to make a difference.

I will admit I don't really understand it all, I'm more of a copy paste type guy but all of my debugging has got me nowhere. I am guessing there's nothing wrong with the code, I'm not changing it at all, I'm just changing the board in the Arduino software.

Using: Arduino 1.6.12 on Windows, powering by USB (FTD1232 for Pro Minis). I've tried different power supplies also.

Serial output:

0 MCO:BGN:INIT NODE,CP=RNNNA--,VER=2.1.1
3 MCO:BGN:BFR
63 TSM:INIT
64 TSF:WUR:MS=0
71 TSM:INIT:TSP OK
73 TSM:FPAR
75 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
712 TSF:MSG:READ,0-0-255,s=255,c=3,t=8,pt=1,l=1,sg=0:0
717 TSF:MSG:FPAR OK,ID=0,D=1
2082 TSM:FPAR:OK
2083 TSM:ID
2084 TSM:ID:REQ
2087 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
4096 TSM:ID
4097 TSM:ID:REQ
4099 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
6107 TSM:ID
6108 TSM:ID:REQ
6110 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
8118 TSM:ID
8119 TSM:ID:REQ
8121 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
10129 !TSM:ID:FAIL
10130 TSM:FAIL:CNT=1
10132 TSM:FAIL:PDT
20135 TSM:FAIL:RE-INIT
20137 TSM:INIT
20145 TSM:INIT:TSP OK
20147 TSM:FPAR
20149 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
20369 TSF:MSG:READ,0-0-255,s=255,c=3,t=8,pt=1,l=1,sg=0:0
20374 TSF:MSG:FPAR OK,ID=0,D=1
22157 TSM:FPAR:OK
22158 TSM:ID
22160 TSM:ID:REQ
22162 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
24170 TSM:ID
24171 TSM:ID:REQ
24174 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
26181 TSM:ID
26182 TSM:ID:REQ
26185 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
28192 TSM:ID
28193 TSM:ID:REQ
28196 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
30204 !TSM:ID:FAIL
30205 TSM:FAIL:CNT=2
30208 TSM:FAIL:PDT
40211 TSM:FAIL:RE-INIT
40213 TSM:INIT
40220 TSM:INIT:TSP OK
40222 TSM:FPAR
40224 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
41061 TSF:MSG:READ,0-0-255,s=255,c=3,t=8,pt=1,l=1,sg=0:0
41066 TSF:MSG:FPAR OK,ID=0,D=1
42232 TSM:FPAR:OK
42233 TSM:ID
42235 TSM:ID:REQ
42237 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
44246 TSM:ID
44247 TSM:ID:REQ
44250 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
46257 TSM:ID
46258 TSM:ID:REQ
46261 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
48268 TSM:ID
48269 TSM:ID:REQ
48272 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
50279 !TSM:ID:FAIL
50280 TSM:FAIL:CNT=3
50282 TSM:FAIL:PDT
60285 TSM:FAIL:RE-INIT
60288 TSM:INIT
60295 TSM:INIT:TSP OK
60297 TSM:FPAR
60299 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
60737 TSF:MSG:READ,0-0-255,s=255,c=3,t=8,pt=1,l=1,sg=0:0
60742 TSF:MSG:FPAR OK,ID=0,D=1
62307 TSM:FPAR:OK
62308 TSM:ID
62310 TSM:ID:REQ
62312 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
64320 TSM:ID
64321 TSM:ID:REQ
64324 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
66331 TSM:ID
66332 TSM:ID:REQ
66335 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
68342 TSM:ID
68343 TSM:ID:REQ
68346 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
70354 !TSM:ID:FAIL
70355 TSM:FAIL:CNT=4
70358 TSM:FAIL:PDT

Arduino sketch:

/**
 * 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
 *
 * Example sketch showing how to send in DS1820B OneWire temperature readings back to the controller
 * http://www.mysensors.org/build/temp
 */


// Enable debug prints to serial monitor
#define MY_DEBUG 

// Enable and select radio type attached
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69
#define MY_MQTT_USER "pi"
#define MY_MQTT_PASSWORD "masked"
#define MY_CONTROLLER_IP_ADDRESS 192, 168, 1, 141
#define MY_PORT 1883

#include <SPI.h>
#include <MySensors.h>  
#include <DallasTemperature.h>
#include <OneWire.h>

#define COMPARE_TEMP 1 // Send temperature only if changed? 1 = Yes 0 = No

#define ONE_WIRE_BUS 3 // Pin where dallase sensor is connected 
#define MAX_ATTACHED_DS18B20 16
unsigned long SLEEP_TIME = 300; // Sleep time between reads (in milliseconds)
OneWire oneWire(ONE_WIRE_BUS); // Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
DallasTemperature sensors(&oneWire); // Pass the oneWire reference to Dallas Temperature. 
float lastTemperature[MAX_ATTACHED_DS18B20];
int numSensors=0;
bool receivedConfig = false;
bool metric = true;
// Initialize temperature message
MyMessage msg(0,V_TEMP);

void before()
{
  // Startup up the OneWire library
  sensors.begin();
}

void setup()  
{ 
  // requestTemperatures() will not block current thread
  sensors.setWaitForConversion(false);
}

void presentation() {
  // Send the sketch version information to the gateway and Controller
  sendSketchInfo("Temperature Sensor", "1.1");

  // Fetch the number of attached temperature sensors  
  numSensors = sensors.getDeviceCount();

  // Present all sensors to controller
  for (int i=0; i<numSensors && i<MAX_ATTACHED_DS18B20; i++) {   
     present(i, S_TEMP);
  }
}

void loop()     
{     
  // Fetch temperatures from Dallas sensors
  sensors.requestTemperatures();
Serial.println("Start");
  // query conversion time and sleep until conversion completed
  int16_t conversionTime = sensors.millisToWaitForConversion(sensors.getResolution());
  // sleep() call can be replaced by wait() call if node need to process incoming messages (or if node is repeater)
  sleep(conversionTime);

  // Read temperatures and send them to controller 
  for (int i=0; i<numSensors && i<MAX_ATTACHED_DS18B20; i++) {

    // Fetch and round temperature to one decimal
    float temperature = static_cast<float>(static_cast<int>((getControllerConfig().isMetric?sensors.getTempCByIndex(i):sensors.getTempFByIndex(i)) * 10.)) / 10.;

    // Only send data if temperature has changed and no error
    #if COMPARE_TEMP == 1
    if (lastTemperature[i] != temperature && temperature != -127.00 && temperature != 85.00) {
    #else
    if (temperature != -127.00 && temperature != 85.00) {
    #endif

      // Send in the new temperature
      Serial.println(temperature);
      send(msg.setSensor(i).set(temperature,1));
      // Save new temperatures for next compare
      lastTemperature[i]=temperature;
    }
  }
  sleep(SLEEP_TIME);
}

I had this working perfectly on my Arduino Uno. I soldered it up to my Arduino Nano and it seems to work ok, but I'm not getting any data sent. The serial says it's connected OK but never sends any motion 1s or 0s. My MQTT server shows the following: Client mosqsub/3449-raspberryp received PUBLISH (d0, q0, r0, m0, 'mygateway1-out/255/255/3/0/3', ... (0 bytes))

Any idea what is going on? I've tested the motion sensor separately and that is sending a high value to pin 3 no worries.