devjourney’s gists

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)

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 / 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 / configure_shelly.py

Created November 30, 2025 03:38

Configure many Shelly IoT devices at once.

	# python configure_shelly.py --password <password> --method BLE.SetConfig --device-file .\shelly_ips.txt --config "{ \"rpc\": { \"enable\": true } }"
	# python configure_shelly.py --password <password> --method BLE.GetConfig --device-file .\shelly_ips.txt
	# python configure_shelly.py --password <password> --method Cloud.SetConfig --device-file .\shelly_ips.txt --config "{ \"enable\": true }"
	# python configure_shelly.py --password <password> --method Cloud.GetConfig --device-file .\shelly_ips.txt

	import requests
	import json
	from requests.auth import HTTPDigestAuth
	import argparse

devjourney / SetSpeakerVolumeOnSchedule.yaml

Created February 13, 2025 15:45

A Home Assistant automation to set the volume of several media players at a specific time of day.

	alias: Speakers - Set Sleep Volume
	description: Set the volume of speakers lower overnight.
	triggers:
	- trigger: time
	at: "23:00:00"
	conditions: []
	actions:
	- action: media_player.volume_set
	metadata: {}
	data:

devjourney / AlertOnPoolGateHelpOpen.yaml

Created February 13, 2025 15:43

A Home Assistant automation that will play an audio message when a gate has been held open too long.

	alias: Alert on Pool Gate Opened
	description: ""
	mode: single
	triggers:
	- type: opened
	device_id: 896de4d80d8fa631e58804be71b50b51
	entity_id: f40b16da6652e7402e9b819f707cedf3
	domain: binary_sensor
	for:
	hours: 0

devjourney / SwitchesSync.yaml

Created February 13, 2025 15:41

A Home Assistant automation to have several switches follow the on-off state of another switch.

	alias: Office Lights - Follow Moulding Lights
	triggers:
	- entity_id:
	- switch.ofc_moulding_lights
	from: "on"
	to: "off"
	trigger: state
	- entity_id:
	- switch.ofc_moulding_lights
	from: "off"

devjourney / ILI9341_TFT_LCD_Simple_Counter.py

Last active January 7, 2024 01:23

CircuitPython ILI9341 TFT Showing Second Counter

	import board
	import time
	import terminalio
	import displayio
	import digitalio
	from adafruit_display_text import label
	import adafruit_ili9341

	# Release any resources currently in use for the displays
	displayio.release_displays()

devjourney / flashingledswithbuttoncontrolleddelay.py

Last active December 8, 2019 04:36

Python script for Raspberry Pi to alternate flashing of two LEDs with two buttons for modifying the duration of the delays between alternations.

	from gpiozero import LED, Button
	from time import sleep

	minimum = 0.0625
	maximum = 1.00
	increment = 0.0625
	delay = minimum

	def set_delay(offset):
	global delay, minimum, maximum

devjourney / UpsertProcedureAndExecuteV1.js

Last active December 9, 2018 21:09

A Node.js app that creates a Cosmos DB stored procedure and executes it.

	var CosmosClient = require('@azure/cosmos').CosmosClient;
	var config = require('./config.js');
	var client = new CosmosClient({
	endpoint: config.connection.endpoint,
	auth: { masterKey: config.connection.authKey }
	});

	async function upsertProcedureAndExecute(sprocDef, docToInsert) {
	const { database } = await client.databases
	.createIfNotExists({ id: config.names.database });

W. Kevin Hazzard devjourney