Di seguito propongo lo Sketch arduino relay presa comandata Mysensors Vera, si tratta del codice sorgente da caricare nell’eide arduino per comandare una presa attraverso Mysensors.

Ulteriori dettagli sono nell’articolo Presa comandata Mysensors Relay Vera

#include <MySensor.h>

#include <SPI.h>
#include <Bounce2.h>

#define RELAY_PIN 4 // Arduino Digital I/O pin number for relay
#define BUTTON_PIN 3 // Arduino Digital I/O pin number for button
#define CHILD_ID 1 // Id of the sensor child
#define RELAY_ON 1
#define RELAY_OFF 0

Bounce debouncer = Bounce();
int oldValue=0;
bool state;
MySensor gw;
MyMessage msg(CHILD_ID,V_LIGHT);

void setup()
{
gw.begin(incomingMessage, AUTO, true);

// Send the sketch version information to the gateway and Controller
gw.sendSketchInfo(“Relay & Button”, “1.0”);

// Setup the button
pinMode(BUTTON_PIN,INPUT);
// Activate internal pull-up
digitalWrite(BUTTON_PIN,HIGH);

// After setting up the button, setup debouncer
debouncer.attach(BUTTON_PIN);
debouncer.interval(5);

// Register all sensors to gw (they will be created as child devices)
gw.present(CHILD_ID, S_LIGHT);

// Make sure relays are off when starting up
digitalWrite(RELAY_PIN, RELAY_OFF);
// Then set relay pins in output mode
pinMode(RELAY_PIN, OUTPUT);

// Set relay to last known state (using eeprom storage)
state = gw.loadState(CHILD_ID);
digitalWrite(RELAY_PIN, state?RELAY_ON:RELAY_OFF);
}
/*
* Example on how to asynchronously check for new messages from gw
*/
void loop()
{
gw.process();
debouncer.update();
// Get the update value
int value = debouncer.read();
if (value != oldValue && value==0) {
gw.send(msg.set(state?false:true), true); // Send new state and request ack back
}
oldValue = value;
}

void incomingMessage(const MyMessage &message) {
// We only expect one type of message from controller. But we better check anyway.
if (message.isAck()) {
Serial.println(“This is an ack from gateway”);
}

if (message.type == V_LIGHT) {
// Change relay state
state = message.getBool();
digitalWrite(RELAY_PIN, state?RELAY_ON:RELAY_OFF);
// Store state in eeprom
gw.saveState(CHILD_ID, state);

// Write some debug info
Serial.print(“Incoming change for sensor:”);
Serial.print(message.sensor);
Serial.print(“, New status: “);
Serial.println(message.getBool());
}
}

Questo  codice Arduino serve per realizzare una presa comandata a distanza con Mysensors.

Un piccolo progetto amatoriale di domotica con l’obiettivo di avere una presa 220V comandata attraverso il controller Zwave Vera Lite.