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#include <MQTT.h>
bool bulb = false;
void callback(char* topic, byte* payload, unsigned int length);
MQTT client("server.flashinglightprize.nathan.uk0.bigv.io", 1883, callback);
void callback(char* topic, byte* payload, unsigned int length) {
char p[length + 1];
memcpy(p, payload, length);
p[length] = NULL;
if (!strcmp(p, "0")) {
bulb = !bulb;
if (bulb) {
digitalWrite(D0, HIGH);
} else {
digitalWrite(D0, LOW);
}
}
}
void setup() {
pinMode(D0, OUTPUT);
client.connect("bulb");
if (client.isConnected()) {
client.subscribe("ring/0");
}
}
void loop() {
if (client.isConnected())
client.loop();
}
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