Thomas Hoffmann j4velin

j4velin / hue_knx.yaml

Created October 24, 2025 18:55

HA Blueprint to switch a Hue light from KNX

	blueprint:
	name: Switch Hue light from KNX
	description: Turn a Hue light on or off from a KNX telegram
	domain: automation
	input:
	knx_address:
	name: KNX group address to switch the light
	target_light:
	name: Hue light entity to switch
	selector:

j4velin / scanserver.py

Created August 18, 2025 19:10

j4velin / door.py

Created May 25, 2024 08:49

React on door ring button press by taking a photo, sending UDP broadcast and playing jingle bells

	#!/usr/bin/python3

	from gpiozero import Button, TonalBuzzer
	from gpiozero.tones import Tone
	from picamera import PiCamera
	from time import sleep
	import socket
	import threading

	buzzer = TonalBuzzer(27, octaves=1, mid_tone="A4")

j4velin / firefly.py

Created October 8, 2022 19:15

DKB -> Firefly CSV Converter

	#!/usr/bin/python3
	# -- coding: utf-8 --

	import os
	import csv
	import re

	accounts = [ "add account numbers here" ]

	def handleAccount(input):

j4velin / scan.sh

Last active October 24, 2025 18:58

Scans the given number of pages and moves the resulting pdf to the input directory for the ocr.sh script

	#!/bin/bash
	count=$1
	resolution=150

	if [ $count -gt 1 ]; then
	scanimage --batch=scan_%d.tiff --batch-count=$count --format=tiff --resolution $resolution --batch-prompt
	resultcode=$?
	if [ $resultcode -eq 0 ]; then
	tiffcp $(ls -v \| grep scan_) scan.tiff
	rm scan_*

j4velin / ocr.sh

Last active January 20, 2022 14:30

Script to run ocrmypdf on new pdf files and move the ocr'ed version to the paperless input directory

	#/bin/bash

	workdir=/home/pi/ocr.work
	scaninput=/home/pi/scaninput
	outdir=/home/pi/paperless.consume

	inotifywait -m -e close_write -e moved_to $scaninput \|
	while read -r path action file; do
	echo "Waiting for $file..."
	sleep 10

j4velin / fan_control.py

Last active March 7, 2020 17:26

Temperature based fan control script for Raspberry Pi 4