rboard - Cheap relay/radio/arduino board ~$10

[Dean]

@gadu said:

Cool, this one is also interesting!

http://imall.iteadstudio.com/im120618001.html

I agree... I placed an order with them last and it arrived yesterday. I bought a few items including a couple more Mini Rboards, but I also bought what you linked. Not sure what I will do with it, but at that price I couldn't say no. :-)

[gregl]

ive had an rboard in production with mysensors for 6 months or so.... it hasnt missed a beat and caused me absolutely no issues!!!

[epierre]

@gregl I wanted to try mine, but it seems it doesn't commute, have you a test script ?

When I send the order:

echo "9;0;1;1;2;1" >> /dev/ttyUSB0

I see on the debug:

read: 0-0-9 s=0,c=1,t=2,pt=0,l=1:1
send: 9-9-0-0 s=0,c=1,t=2,pt=0,l=1,st=ok:1
Incoming change for sensor:0, New status: 1

But I don't hear the relay commute nor mesure a conductivity on the relay limits.

any hint ?

[gregl]

You may not have enough power to drive the relay...five it at least 6v

. ...or the Wong pin in your sketch.

[epierre]

@gregl right this was linked to a powering issue.

:~$ echo "9;1;1;1;2;1" >> /dev/ttyUSB0
:~$ echo "9;1;1;1;2;0" >> /dev/ttyUSB0

what is strange is that it is the sensor 1 and not the 0, but the way the demo code is you have to do that...

digitalWrite(message.sensor-1+RELAY_1,

@hek sending a message would be good in http://www.mysensors.org/download/serial_api_14 in § serial communication example, it is missing...

[Homer]

Sorry about bumping an old thread...

I am using one of these boards to make a relay and temp sensor. I am trying to use Gregl's example that is linked here and stored on Codebender. For the record, here it is:

//This is Motion/Door & Temp Sensor with Relay 
//Hardware is Mini RBoard ftp://imall.iteadstudio.com/Mainboard/IM140704001_mini_Rboard/SCH_IM140704001_MiniRboard.pdf

//


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

char sketch_name[] = "Multi Sensor";
char sketch_ver[]  = "2014.11.15r1";

#define MySensorTESTBED 0

#if MySensorTESTBED == 1
#define CLIENT_ID 9  // Sets MYSensors client id
#define RADIO_CH 96  // Sets MYSensors to use Radio Channel 96
#define RELAY 4   // Set 4 for mini rboard
#define TRIGGER	3	// On Mini Rboard there is D3 (Interupt 1) available on the RX Module pins

#endif

#if MySensorTESTBED == 0
#define CLIENT_ID AUTO  // Sets MYSensors client id
#define RADIO_CH 76  // Sets MYSensors to use Radio Channel
#define RELAY 4   // Set 4 for mini rboard
#define TRIGGER	3	// On Mini Rboard there is D3 (Interupt 1) available on the RX Module pins
#endif

//Temp Sensor bits
#define ONE_WIRE_BUS 14 // Pin where dallas sensor is connected - on Rboard this is A0(D14)
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature DallasSensors(&oneWire);
float lastTemperature ;
#define CHILD_ID_T1 3 //CHILD ID for relay


//Relay Output bits
#define RELAY_ON 0  // GPIO value to write to turn on attached relay
#define RELAY_OFF 1 // GPIO value to write to turn off attached relay
#define CHILD_ID_R1 1 //CHILD ID for relay

//Trigger Sensor Bits
#define CHILD_ID_S1 2 //CHILD ID for Reed/Motion sensor
boolean lastTripped = 0;




MySensor gw;
MyMessage triggerMsg(CHILD_ID_S1,V_TRIPPED);
MyMessage relayMsg(CHILD_ID_R1,V_LIGHT);
MyMessage tempMsg(CHILD_ID_T1,V_TEMP);



void setup()
{
	// Startup OneWire Temp Sensors
	DallasSensors.begin();
	
	// Initialize library and add callback for incoming messages
	gw.begin(incomingMessage, CLIENT_ID , false,AUTO,RF24_PA_MAX,RADIO_CH,RF24_250KBPS);
	
	// Send the sketch version information to the gateway and Controller
	gw.sendSketchInfo(sketch_name, sketch_ver);

	// Register all sensors to gw (they will be created as child devices)
	gw.present(CHILD_ID_R1, S_LIGHT);
	gw.present(CHILD_ID_T1, S_TEMP);
	gw.present(CHILD_ID_S1, S_MOTION);
	
		
	// Then set relay pins in output mode
	pinMode(RELAY, OUTPUT);
	pinMode(TRIGGER,INPUT_PULLUP);
	
	//Ensure relay is off
	digitalWrite(RELAY,RELAY_OFF); //turn relay off
	
	
}


void loop()
{
	// Alway process incoming messages whenever possible
	gw.process();
	
	
	// Check for motion change value
		boolean tripped = digitalRead(TRIGGER) == HIGH; 

		if (lastTripped != tripped ) {
			gw.send(triggerMsg.set(tripped?"1":"0")); // Send new state and request ack back
			Serial.println("Tripped");
			lastTripped=tripped;
		}
		
		
	// Fetch temperatures from Dallas sensors
		DallasSensors.requestTemperatures();
		float tempC = DallasSensors.getTempCByIndex(1);
		
		// Only send data if temperature has changed and no error
		if (lastTemperature != tempC && tempC != -127.00) {
			
			// Send in the new temperature
			gw.send(tempMsg.set(tempC,1));
			lastTemperature=tempC;
		}
		
}



void incomingMessage(const MyMessage &message) {
	// We only expect one type of message from controller. But we better check anyway.
	if (message.type==V_LIGHT && !(message.isAck()) ) { // look for messages for the relay and that are not ACK messages
		// Change relay state
		digitalWrite(RELAY, message.getBool()?RELAY_ON:RELAY_OFF);
		Serial.print("Incoming change for sensor:");
		Serial.print(message.sensor);
		Serial.print(", New status: ");
		Serial.println(message.getBool());
				
	}
}

Just as the code stands, when I try to compile it, I get an error. First I got one because the Mysensors library had the last letter 's' missing, but even after I make that correction I can't get it to compile. This is the error that I get:

Arduino: 1.8.9 (Windows Store 1.8.21.0) (Windows 10), Board: "Arduino Duemilanove or Diecimila, ATmega328P"

WARNING: Spurious .ci folder in 'MySensors' library
WARNING: Spurious .mystools folder in 'MySensors' library
In file included from C:\Users\Dean\Documents\Arduino\testingagain\testingagain.ino:7:0:

C:\Users\Dean\Documents\Arduino\libraries\MySensors/MySensors.h:405:2: error: #error No forward link or gateway feature activated. This means nowhere to send messages! Pretty pointless.

#error No forward link or gateway feature activated. This means nowhere to send messages! Pretty pointless.

^

Multiple libraries were found for "MySensors.h"
Used: C:\Users\Dean\Documents\Arduino\libraries\MySensors
Not used: C:\Users\Dean\Documents\Arduino\libraries\MySensors-2.3.1
Multiple libraries were found for "DallasTemperature.h"
Used: C:\Users\Dean\Documents\Arduino\libraries\DallasTemperature
Not used: C:\Users\Dean\Documents\Arduino\libraries\MAX31850_DallasTemp
exit status 1
Error compiling for board Arduino Duemilanove or Diecimila.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

I really don't know where to go to from here, because all I have done is tried to compile a working sketch so it should work, shouldn't it?

Keen to hear back from someone who knows a lot more about this stuff than me! Thanks

[mfalkvidd]

@homer that sketch was made for MySensors 1.x and needs to be converted to work for MySensors 2.x.
Followthe guide at https://forum.mysensors.org/topic/4276/converting-a-sketch-from-1-5-x-to-2-0-x to convert it.

Alternatively, remove MySensors 2 and install MySensors 1 instead.

[Homer]

@mfalkvidd said in rboard - Cheap relay/radio/arduino board ~$10:

@homer that sketch was made for MySensors 1.x and needs to be converted to work for MySensors 2.x.
Followthe guide at https://forum.mysensors.org/topic/4276/converting-a-sketch-from-1-5-x-to-2-0-x to convert it.

Alternatively, remove MySensors 2 and install MySensors 1 instead.

Thanks mate! I was thinking something like that might be the case, but I didn't know for sure.

Thank you so much for pointing me in the right direction!!

[Homer]

I just wanted to say that I managed to upload a sketch and I have it working!

I attempted to change the code so it was compatible but I gave that up and decided to merge two sketches. It was good fun, and I enjoyed learning!

[alowhum]

Could you share the sketch? Perhaps others will learn from it too?

[Homer]

@alowhum said in rboard - Cheap relay/radio/arduino board ~$10:

Could you share the sketch? Perhaps others will learn from it too?

Great idea! :relaxed:

Here it is

// Enable debug prints to serial monitor
#define MY_DEBUG

// Enable and select radio type attached
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69

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

// Setup Relay bits
#define RELAY_PIN 4  // Arduino Digital I/O pin number for first relay (second on pin+1 etc)
#define NUMBER_OF_RELAYS 1 // 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

// Setup Temperature bits
#define COMPARE_TEMP 1 // Send temperature only if changed? 1 = Yes 0 = No
#define ONE_WIRE_BUS 14 // Pin where dallase sensor is connected 
#define MAX_ATTACHED_DS18B20 16
unsigned long SLEEP_TIME = 30000; // 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 tempMsg(0, V_TEMP);

void before()
{
  for (int sensor = 1, pin = RELAY_PIN; 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);
  }

  // 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("Temp and Relay", "1.0");

  // 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);

    for (int sensor = 1, pin = RELAY_PIN; sensor <= NUMBER_OF_RELAYS; sensor++, pin++) {
      // Register all sensors to gw (they will be created as child devices)
      present(sensor, S_BINARY);

    }
  }
}

void loop()
{
  // Fetch temperatures from Dallas sensors
  sensors.requestTemperatures();

  // 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)
  wait(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
      send(tempMsg.setSensor(i).set(temperature, 1));
      // Save new temperatures for next compare
      lastTemperature[i] = temperature;
    }
  }
  wait(SLEEP_TIME);
}

void receive(const MyMessage &message)
{
  // We only expect one type of message from controller. But we better check anyway.
  if (message.type == V_STATUS) {
    // Change relay state
    digitalWrite(message.sensor - 1 + RELAY_PIN, 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(", New status: ");
    Serial.println(message.getBool());
  }
}