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Adding reboot-over-MQTT option for fingerprint-mqtt-led-touch.ino #29

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Adding reboot-over-MQTT option for fingerprint-mqtt-led-touch.ino #29

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17 changes: 16 additions & 1 deletion fingerprint-mqtt/fingerprint-mqtt-led-touch.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,7 @@
#define MODE_LEARNING "/fingerprint/mode/learning"
#define MODE_READING "/fingerprint/mode/reading"
#define MODE_DELETE "/fingerprint/mode/delete"
#define MODE_REBOOT "/fingerprint/mode/reboot"
#define AVAILABILITY_TOPIC "/fingerprint/available"
#define mqtt_username "MQTT Username"
#define mqtt_password "MQTT Password"
Expand Down Expand Up @@ -108,7 +109,8 @@ void loop() {
client.publish(STATE_TOPIC, mqttBuffer, mqttMessageSize);

while (fingerState == HIGH) { // Disable sensor while no finger
fingerState = digitalRead(D3);
fingerState = digitalRead(D3);
client.loop(); // So that MQTT messags are processed
delay(100);
}
} else if (sensorOn == false) { // Disable sensor regardless of finger presence
Expand Down Expand Up @@ -413,6 +415,7 @@ void reconnect() {
client.subscribe(MODE_LEARNING); //Subscribe to Learning Mode Topic
client.subscribe(MODE_READING);
client.subscribe(MODE_DELETE);
client.subscribe(MODE_REBOOT);
client.subscribe(SENSOR_ENABLED_TOPIC);
} else {
Serial.print("failed, rc=");
Expand Down Expand Up @@ -487,4 +490,16 @@ void callback(char* topic, byte* payload, unsigned int length) {
Serial.println("Turning sensor off");
}
}

if (strcmp(topic, MODE_REBOOT) == 0) {
Serial.println("Got MQTT reboot command");
mqttMessage["mode"] = "reboot";
mqttMessage["state"] = "Rebooting!";
size_t mqttMessageSize = serializeJson(mqttMessage, mqttBuffer);
client.publish(STATE_TOPIC, mqttBuffer, mqttMessageSize);
Serial.println("Rebooting!");
WiFi.disconnect(); // Drop current connection
delay(1000);
ESP.restart();
}
}