Game Instance

Let the games begin

Tools

Oscilloscopes, multimeters, soldering irons, the lot.

Digital Oscilloscope

Yet another Arduino application

2016-11-20

Hall Effect current measurement

ACS712

2017-02-03

LCD 1602 Hitachi

a 16 x 2 chars text display

2017-02-10

Simple STM32 Digital Oscilloscope

Another NT35702 TFT display application

2017-03-20

Voltage Offset Adjustment with Op Amps

An upgrade for the STM32 Digital Oscilloscope

2017-03-26

Non-synchronous Buck Converter

Efficiency evaluation

2017-11-12

Arduino NiMH Battery Discharger

Preventing the Memory Effect

2017-11-19

Smart NiMH Battery Charger

Arduino DIY at its best

2017-11-26

Dual NiMH Battery Smart Charger

Part 2 - The build

2017-12-02

Dual NiMH Battery Smart Charger

Part 5 - Limitations

2018-01-14

Dual NiMH Battery Smart Charger

Part 3 - The Arduino code

2017-12-09

Arduino Web Console

NodeJS, CSS and HTML web app

2018-01-21

Speaker impedance measurement

A Python & Arduino gadget

2018-09-16

Dual NiMH Battery Smart Charger

A Web based interface

2018-01-27

UV Exposure Box

DIY PCB manufacturing

2018-02-04

UV Exposure Box

Part 3 - Building it

2018-03-04

UV-Box 400

Part 4 - The Arduino compartment

2018-03-11

Bass-Reflex transfer function

Frequency and phase response. Phase and group delay.

2018-04-29

UV Exposure Box

Part 2 - The high voltage electric circuit

2018-02-18

UV-Box 400

Part 5 - The Arduino circuit and sketch

2018-03-18

DIY PCB fabrication

Negative acting photosensitive UV curable film

2018-10-27

STM32 Oscilloscope

2.57 Msps with FFT spectrum scope and SD card export

2018-11-04

STM32 Oscilloscope with FFT and SD export

The Arduino code

2018-11-11

Merry Christmas!

Santa brings you a speaker design widget

2018-12-26

Happy New Year!

Bass-reflex loudspeaker design widget

2018-12-31

Decoding 433 MHz Remote Control Signals

Some tech, more DIY

2019-01-02

Replicating 433 MHz Remote Control Signals

A real world DIY application

2019-01-12

Cloning MPS-TF2E Remote Controls

A widget for DIY code word generation

2019-01-20

Bench-top power supply

Informed choice

2021-02-21

DIY linear bench power supply

Part 1 - sourcing heavy parts

2021-03-28

DIY linear bench power supply

Part 2 - series regulator circuit

2021-04-25

An unexpected Christmas present

from another age

2021-12-25

Restoration of an HP 6289A

Sifting through 50 years of dust

2022-01-02

Restoration of an HP 6289A

Disassembly and investigations

2022-01-09

Restoration of an HP 6289A

Troubleshooting and repair

2022-01-16

Restoration of an HP 6289A

Cleanup and reassembly

2022-12-26

From Gosund to Tasmota in 45 minutes

A jail-break story

2022-12-30

FLAC decoder

A comprehensible, lightweight C++ implementation

2024-03-27

ESP32 PCM56 player

An ST-S505 integration

2024-06-01