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

[Dean]

@gregl thanks for your suggestion, that thought actually did come to mind when I was trying to troubleshoot what was going on. I had been using 4 AA batteries to power it, and they had been used for quite some time, so I ended up locating an old mobile phone charger and used that to power it. The board has been working reliably every since, but I am reluctant to use the board for anything important.

@ServiceXp yes you heard me right :-) the board is currently doing all those things, but I'm not depending on it. My wife is home all the time, so if for some reason the relay decides to open the garage, she will hear it and close out back up. It is my first sensor, and even though it hasn't come together as well as all of you, in still proud of myself for building it, and even though it's reliability is debatable, I like the idea of keeping it running at this stage because it gives me a smile every time I open the Vera dashboard :-)

So can anyone give me a little hand with how the actual switch part is supposed to work? Thanks in advance :-)

[RJ_Make]

@Dean Does the build make it difficult to swap out the rboard, and demote that temperamental rboard to say controlling a light? For me, I consider the garage door to be one of those more important functions.. :-)

You will wire one side of the switch to the pin you want to use on the rboard and the other side to GND. When you initialize the pin, you need to use INPUT_PULLUP eg: pinMode(buttonPin, INPUT_PULLUP)

http://arduino.cc/en/Reference/pinMode

Hope that helps...

[Dean]

@ServiceXp said:

@Dean Does the build make it difficult to swap out the rboard, and demote that temperamental rboard to say controlling a light? For me, I consider the garage door to be one of those more important functions.. :-)

You will wire one side of the switch to the pin you want to use on the rboard and the other switch to GND. When you initialize the pin, you need to use INPUT_PULLUP eg: pinMode(buttonPin, INPUT_PULLUP)

http://arduino.cc/en/Reference/pinMode

Hope that helps...

Hi @ServiceXp , that is the exact info I was after! Thank you very much :-)

At present the build is just the board, radio and motion sensor all just wired up and sitting above the lightswitch in the garage. For me it was kind of a test to see if I could do this. Like I said, my wife is home all the time so there is no way the garage door will open without someone knowing. If the board keeps working as it is presently, then I'll feel more confident in using the board again somewhere else. But so far it is working very well, which I am very pleased about :-) But you're right, keeping a garage secure is something that is usually pretty important, the other thing is that there is no internal access into our home, so between that and my wife being home, personally I am ok with the present arrangement.

Thanks again for your help!

[gadu]

Cool, this one is also interesting!

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

[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());
  }
}