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 * REVISION HISTORY
 * Version 1.0 - Henrik EKblad
 *
 * DESCRIPTION
 * Example sketch showing how to measure light level using a LM393 photo-resistor
 * http://www.mysensors.org/build/light
 */

// Enable debug prints to serial monitor
#define MY_DEBUG

// Enable and select radio type attached
#define MY_RADIO_RF24
//#define MY_RADIO_NRF5_ESB
//#define MY_RADIO_RFM69
//#define MY_RADIO_RFM95

#include <MySensors.h>

#define CHILD_ID_LIGHT 0
#define LIGHT_SENSOR_ANALOG_PIN 0

uint32_t SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds)

MyMessage msg(CHILD_ID_LIGHT, V_LIGHT_LEVEL);
int lastLightLevel;


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

	// Register all sensors to gateway (they will be created as child devices)
	present(CHILD_ID_LIGHT, S_LIGHT_LEVEL);
}

void loop()
{
	int16_t lightLevel = (1023-analogRead(LIGHT_SENSOR_ANALOG_PIN))/10.23;
	Serial.println(lightLevel);
	if (lightLevel != lastLightLevel) {
		send(msg.set(lightLevel));
		lastLightLevel = lightLevel;
	}
	sleep(SLEEP_TIME);
}

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#!/usr/bin/env python3
from time import sleep

from MySensors import (
    analog_read, MyMessage, present, send, send_sketch_info, Serial,
    S_LIGHT_LEVEL, V_LIGHT_LEVEL
)

CHILD_ID_LIGHT = 0
LIGHT_SENSOR_ANALOG_PIN = 1
SLEEP_TIME = 30


def main():
    # Send the sketch version information to the gateway and controller.
    send_sketch_info('Light Sensor', '1.0')
    # Register all sensors to gateway (they will be created as child devices).
    present(CHILD_ID_LIGHT, S_LIGHT_LEVEL)
    
    message = MyMessage(CHILD_ID_LIGHT, V_LIGHT_LEVEL)
    previous_light_level = None
    while True:
        light_level = (1023 - analog_read(LIGHT_SENSOR_ANALOG_PIN)) / 10.23
        Serial.println(light_level)
        if light_level != previous_light_level:
            send(message.set(light_level))
            previous_light_level = light_level
        sleep(SLEEP_TIME)


if __name__ == '__main__':
    main()