Posts tagged "electronics"

2025

December

A short update on my Raspberry Pi security alarm project

2025-12-16

2024

November

Measuring outdoor temperature with a Raspberry Pi and DS18B20 probe

2024-11-29

2022

December

Raspberry Pi security alarm — the basics

2022-12-30

2021

November

Wi-Fi relays for controlling ventilation — WeMos D1, MQTT, and Home Assistant

2021-11-21

March

Kids traffic light, with Raspberry Pi Zero W

2021-03-25

2020

January

Two channel traffic lights controller — using Wemos

2020-01-29

Making a simple LEGO LED street light

2020-01-27

2019

December

Stack lights for Alertmanager using Raspberry Pi

2019-12-19

October

Raspberry Pi with DS18B20 temperature sensors

2019-10-30

September

Kids alarm module, Raspberry Pi Zero, and MQTT

2019-09-10

August

Finding earth leakage on ATTEN 858D hot air gun

2019-08-13

2017

December

Putting flickering LEDs in christmas decoration

2017-12-21

August

Making a WiFi MQTT controlled relay for Home Assistant

2017-08-31 — Updated

Making the Lync status light bigger and brighter

2017-08-04

May

Modifying a noisy SOS station kids toy

2017-05-17

April

Sticking a LED-strip behind my TV

2017-04-21

March

Mounting blue emergency LEDs on kids' walking car

2017-03-05

February

Putting LED lights in a IKEA play kitchen

2017-02-27

January

Replacing front LEDs on RC car

2017-01-21

2016

May

Making a Lync status light

2016-05-29

2015

February

Getting started with the AVR microcontroller series

2015-02-27

2012

March

Temperature and auxiliary sensor (RS-485), AVR

2012-03-10

2011

December

Temperature and humidity sensor (RS-232), AVR

2011-12-05

November

Temperature and light sensor with signalling LEDs (RS-232), AVR

2011-11-23

2010

May

Portable alarm system (school project, electronics)

2010-05-23

2009

June

Car warning lights, with AVR controller

2009-06-30 — Updated

May

The rack box project — an overview

2009-05-23

March

Serial interface module, with analog and digital I/O — AVR

2009-03-07

2008

October

Serial port I/O module with 15 inputs — AVR

2008-10-27

September

AVR car front lights controller

2008-09-18

June

Security keypad with programmable PIN — AVR

2008-06-25 — Updated

April

Dual channel warning LEDs controller, with AVR

2008-04-21

January

Making kitchen cabinet LED lights

2008-01-31

LCD unit driven by a computer parallel port

2008-01-03

2007

December

Intruder alarm system controller — AVR

2007-12-11

November

Status panel for the Rack box project

2007-11-06

October

Emergency LED strobe, AVR controlled

2007-10-12 — Updated

July

Serial interface for emergency power off — AVR

2007-07-11

June

Temperature and light sensor, with LEDs — AVR serial module

2007-06-23

DIY apartment LED lights

2007-06-17

AVR alarm disabling unit for production equipment

2007-06-14

Serial port I/O module with 9 in and outputs — AVR

2007-06-11

May

Home power consumption measuring unit, with AVR

2007-05-29

Serial port I/O module with 11 inputs — AVR

2007-05-21

AVR mood light, 500mA per channel

2007-05-20

April

Light sensor with LED display, AVR controlled

2007-04-20 — Updated

4-channel electronic switch and voltage regulator

2007-04-10 — Updated

March

AVR alarm disabling unit for production equipment with long stop warning

2007-03-27

February

AVR mood light, 100mA per channel

2007-02-15

January

Module heartbeat monitor, 15 inputs — LCD and AVR

2007-01-31 — Updated

Electric heater and timer controller — AVR

2007-01-26

Multi-purpose AVR module

2007-01-10

2006

September

Multiplexer output extender

2006-09-02

August

Sound alarm control unit — AVR module

2006-08-22

Fan controller with LCD — AVR powered

2006-08-14

Emergency power off controller — controlled by 555 timers

2006-08-07 — Updated

July

Bilge pump controller for my dad's sail-boat

2006-07-13

June

Controller for lights and relays — AVR driven

2006-06-24

Module heartbeat monitor, 6 inputs — AVR

2006-06-15

Monitored fuse box, 4 channels

2006-06-14 — Updated

May

Mute and light controller for the Rack box — AVR module

2006-05-20

Stack lights and horn controller — with AVR

2006-05-16 — Updated

April

Monitored fuse box, 6 channels

2006-04-21

Power supply and fuse monitoring module, AVR

2006-04-12

Simple IO tester with 6 channels

2006-04-05

2004

July

Wooden 2-post open rack frame

2004-07-27

May

Parallel port I/O module

2004-05-11

April

AVR production line stop alarm

2004-04-16