Game Instance

Let the games begin

Electronics

Electronic components, devices and circuits.

Simple solar battery charger

A 3 dollar Arduino project

Oct 05, 2016

Temperature compensated charging voltage

for the simple solar battery charger

Oct 14, 2016

Simple solar battery charger - PCB design

Using KiCad - the open source Electronics Design Automation Suite

Oct 21, 2016

PCB manufacturing

DIY techniques

Oct 31, 2016

Nokia 5110 LCD for Arduino

A graphic 84x48 display

Nov 06, 2016

The Snake game for Arduino

A Nokia 5110 LCD demo

Nov 13, 2016

Digital Oscilloscope

Yet another Arduino application

Nov 20, 2016

Sorry to interrupt

but this is important

Nov 27, 2016

Festive lights

Transistor Astable Mutivibrator with LEDs

Dec 04, 2016

Photoresistor

Light sensitive switch

Dec 11, 2016

Festive lights

Flippity-flop, what the?

Dec 18, 2016

STM32F103C8

in Arduino Pro Mini clothes

Jan 08, 2017

Serial Peripheral Interface

or SPI

Jan 15, 2017

Serial Peripheral Interface

the Arduino way

Jan 22, 2017

Hall Effect sensor

A3144 switch

Jan 29, 2017

Hall Effect current measurement

ACS712

Feb 03, 2017

LCD 1602 Hitachi

a 16 x 2 chars text display

Feb 10, 2017

Arduino Audio Controller

A Pulse Width Modulation application

Feb 19, 2017

Real-time SPI transmission

For the Arduino PWM Audio Controller

Feb 26, 2017

2.4" TFT LCD with Touch and SD Card reader

320x240 16bit NT35702 controller

Mar 05, 2017

2.4" TFT LCD NT35702

with STM32F103C8

Mar 12, 2017

Simple STM32 Digital Oscilloscope

Another NT35702 TFT display application

Mar 20, 2017

Voltage Offset Adjustment with Op Amps

An upgrade for the STM32 Digital Oscilloscope

Mar 26, 2017

Happy Easter!

Alien eggs

Apr 16, 2017

Simple solar battery charger

using the Atmega328p and one P-Channel MOSFET switching transistor

May 06, 2017

Off-the-grid plant irrigator

For a self sustained garden

May 14, 2017

Arduino plant irrigator

For a self sustained garden

May 28, 2017

Arduino controlled buck converter

A simple step-down voltage regulator

Jun 12, 2017

Arduino plant irrigator with bluetooth

An SPP-CA bluetooth remote control application

Jun 18, 2017

Simple solar battery charger

Upgrade: replacing the protection diodes with a Schottky

Jun 23, 2017

Arduino irrigation system with bluetooth

A remote control application

Jun 26, 2017

Game Console on Arduino

First model

Oct 05, 2017

Space Invaders game

For the Arduino Game Console

Oct 15, 2017

Precise battery cell voltage measurement

Yet another Arduino application

Oct 22, 2017

Maze Explorer game

For Arduino Game Console

Oct 29, 2017

Bluetooth audio receiver

The C7THN50004 chip self-designated WIN-668

Nov 05, 2017

Non-synchronous Buck Converter

Efficiency evaluation

Nov 12, 2017

Arduino NiMH Battery Discharger

Preventing the Memory Effect

Nov 19, 2017

Smart NiMH Battery Charger

Arduino DIY at its best

Nov 26, 2017

Dual NiMH Battery Smart Charger

Part 2 - The build

Dec 02, 2017

Dual NiMH Battery Smart Charger

Part 3 - The Arduino code

Dec 09, 2017

Dual NiMH Battery Smart Charger

Part 4 - Reducing the overcharge

Dec 17, 2017

Dual NiMH Battery Smart Charger

Part 5 - Limitations

Jan 14, 2018

Dual NiMH Battery Smart Charger

A Web based interface

Jan 27, 2018

UV Exposure Box

DIY PCB manufacturing

Feb 04, 2018

UV Exposure Box

Part 2 - The high voltage electric circuit

Feb 18, 2018

UV Exposure Box

Part 3 - Building it

Mar 04, 2018

UV-Box 400

Part 4 - The Arduino compartment

Mar 11, 2018

UV-Box 400

Part 5 - The Arduino circuit and sketch

Mar 18, 2018

DIY Bookshelf Speakers

Loudspeaker design 101

Apr 15, 2018

Classix II

A Paul Carmody design

Apr 22, 2018

Bass-Reflex phase corrector

IIR 2nd order digital filter

May 06, 2018

Classix II - 2 way bookshelf speakers

Featuring: Dayton DC160-8 and Vifa BC25TG15-04

Sep 09, 2018

Speaker impedance measurement

A Python & Arduino gadget

Sep 16, 2018

Baffle step correction

A Hail Mary attempt on my Classix II bass issue

Sep 23, 2018

H-Bridge

Driving DC motors both ways

Oct 13, 2018

DIY PCB fabrication

Negative acting photosensitive UV curable film

Oct 27, 2018

STM32 Oscilloscope

2.57 Msps with FFT spectrum scope and SD card export

Nov 04, 2018

STM32 Oscilloscope with FFT and SD export

The Arduino code

Nov 11, 2018

Decoding 433 MHz Remote Control Signals

Some tech, more DIY

Jan 02, 2019

Replicating 433 MHz Remote Control Signals

A real world DIY application

Jan 12, 2019

Cloning MPS-TF2E Remote Controls

A widget for DIY code word generation

Jan 20, 2019

STM32F030K6T6 dev board

an underestimated MCU

Apr 12, 2020

Merry Christmas!

Guess contest

Dec 25, 2020

Bench-top power supply

Informed choice

Feb 21, 2021

DIY linear bench power supply

Part 1 - sourcing heavy parts

Mar 28, 2021

DIY linear bench power supply

Part 2 - series regulator circuit

Apr 25, 2021

An unexpected Christmas present

from another age

Dec 25, 2021

Restoration of an HP 6289A

Sifting through 50 years of dust

Jan 02, 2022

Restoration of an HP 6289A

Disassembly and investigations

Jan 09, 2022

Restoration of an HP 6289A

Troubleshooting and repair

Jan 16, 2022