Lukelectro’s gists

Lukelectro / main.c

Last active March 1, 2023 13:33

Atmega328p-based DC-AC converter to ring a T65 phone

	/*
	* Atmega328p-based DC-AC converter to ring a T65 phone.
	* http://www.eluke.nl for schematic
	*/

	#include <avr/io.h>
	#include <avr/interrupt.h>
	#define F_CPU 8e6
	#include <util/delay.h>

Lukelectro / runradio.service

Created October 30, 2022 19:12

	[Unit]
	Description="run web radio receiver"
	After=multi-user.target

	[Service]
	Type=simple
	User=USERNAME_HIER_INVULLEN
	Group=USERGROUP_HIER_INVULLEN
	ExecStart=/usr/bin/python3 /home/USERNAME/runradio.py

Lukelectro / optical_distance_sensor.ino

Created June 30, 2022 13:32

	/*
	simple example for optical distance sensor with IR LED and BPW40
	LED has 470R series resistor and is connected to pin given as IRLED (Pin 8 / PB0)
	BPW40 is wired with collector to +5V, emitor to 1k8 to ground.
	Emitor of BPW40 is capacitively coupled with 100 nF to pin given as BPW40 (pin A1, PC1)
	That pin also has a 100k resistor to ground

	(D8) + 5V
	\| \|
	470R \|

Lukelectro / runradio.py

Last active July 27, 2025 09:45

radio stream receiver for raspi, bodged together from url mentioned in comments and a few other sources: A website with streaming urls (https://hendrikjansen.nl/henk/streaming.html) and a few adafruit / sparkfun tutorials on audio-to-usb-soundcard and readonly OS. (strangely, after routing audio to card 1 which is the usb card and setting the FS…

	#!/usr/bin/env python3

	# https://raspberrytips.nl/internet-radio-luisteren-raspberry-pi/
	# modified to use vlc and a simple hd44780lcd + 3 buttons
	# Re-modified 10-2024 to use --loop and --https-reconnect hoping to fix a 'sometimes stops playing' issue

	# Re-modifief 07-2025 to use ffplayer instead of vlc. vlc --loop loops the playlist, should use --repeat to use the item, but --http-reconnect seems not to work an it is a known wont fix issue anyway: https://bugs.launchpad.net/ubuntu/+source/vlc/+bug/790216 so I'll simply use ffplay which is included on raspbian. And put it in a loop to restart when crashed:.
	# while true; do ffplay -i https://icecast.omroep.nl/radio1-bb-aac -nodisp -vn -autoexit; sleep 5; done
	#should also split all hd44780 to another file, but hey...

Lukelectro / slicer_vinylcut_config.ini

Created January 30, 2022 13:09

	# generated by Slic3r 1.3.0 on 2022-01-30 13:05:52
	adaptive_slicing = 0
	adaptive_slicing_quality = 75%
	avoid_crossing_perimeters = 0
	bed_shape = 0x0,190x0,190x190,0x190
	bed_temperature = 0
	before_layer_gcode =
	between_objects_gcode =
	bottom_infill_pattern = rectilinear
	bottom_solid_layers = 0

Lukelectro / DemoReel100_modified.ino

Created January 7, 2022 20:51

Showreel for 241 pixel nested LED-rings, based on FastLED's showreel100, includes a modified Fire2012

	#include <FastLED.h>

	FASTLED_USING_NAMESPACE

	// FastLED "100-lines-of-code" demo reel, showing just a few
	// of the kinds of animation patterns you can quickly and easily
	// compose using FastLED.
	//
	// This example also shows one easy way to define multiple
	// animations patterns and have them automatically rotate.

Lukelectro / main.c

Created November 6, 2021 21:07

Solar lamp msp430

	#include <msp430.h>
	#include <stdbool.h>

	/**
	* slim solarlampje.
	* Doel:
	* aan net voor zonsopgang tot zonsopgang,
	* aan na zonsondergang, maar beperkte tijd (niet hele nacht)
	* dus de "vorige" zonsondergang/opgang onthouden.
	*

Lukelectro / 7003_asy.ino

Created July 18, 2021 15:09

Demo on 7003 asy board

	/*
	* 10x PD2437 display module
	* aangepast vanaf het voorbeeld van Aart
	*
	* Logic board:
	*
	* 34_pin function register function
	*
	* 1,2,3,4 V+
	*

Lukelectro / 7003_asy.ino

Last active July 18, 2021 12:26

	/*
	* 10x 9443 display module
	* Aart 06-2021
	*
	* Logic board:
	*
	* 34_pin function register function
	*
	* 1,2,3,4 V+
	*

Lukelectro / E-ink spielerei

Last active July 18, 2020 19:49

E-Ink ED060SC7 differs from ...SC4 (Swap X & Y). STM32F103 has less RAM, so only Proof of Concept.

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