W. Kevin Hazzard devjourney

devjourney / ShellySyncWithPairedLight.js

Created December 27, 2025 03:31

Use this Shelly smart relay script to sync the switch state of the relay with that of another device using MQTT.

	function subscribeToStatusUpdates(topic) {
	MQTT.subscribe(topic , function(t, message) {
	if (typeof message === "undefined" \|\| message === null) {
	print("Received undefined or null message - ignoring");
	return;
	}

	try {
	let payload = JSON.parse(message);
	if (payload.source === "button") {

devjourney / bthome_ble_motion_and_lux_trigger.js

Last active January 16, 2026 20:51

Script to trigger Gen2 Shelly devices from BTHome messages with motion and lux data from Shelly BLU devices.

	let CONFIG = {
	// the BTHome motion and light sensors that will report to this device
	// add a Bluetooth MAC address for each reporting sensor
	sensorMACs: [
	"3c:2e:f5:ba:e8:bd".toLowerCase() // Shelly BLU Motion sensor
	],
	lightId: 0, // Channel 0 in Lights x4 mode
	fullBrightness: 100, // max when very bright ambient
	minBrightness: 5, // min when very dark (soft night light)
	timeoutSec: 300, // shared timeout for motion

devjourney / bthome_ble_lux_control_only.js

Created January 16, 2026 20:53

Control the brightness of a Shelly RGBW PM channel with BTHome messages over BLE from a Shelly BLU Motion sensor.

	let CONFIG = {
	debug: false,
	active: false, // passive BLE scanning is sufficient
	// BTHome light sensor(s) that will report to this device
	sensorMACs: [
	"3c:2e:f5:ba:e8:bd" // Shelly BLU Motion sensor
	],
	lightId: 0, // Channel 0 in Lights x4 mode
	fullBrightness: 100, // max brightness
	minBrightness: 5, // min brightness (avoid completely dark)