Electronics

Projects using electronic components and circuits

Introducing a blog for Retro Computing Enthusiasts, Retro Bits and Bytes

We have launched a new blog dedicated to all things retro computing and classic computers from the 1970s, 80s and 90s

13 January 2025 3 min read

Rigol DHO804 Oscilloscope Quiet Fan Mod Photo

We fitted a quiet Noctua fan using a 3D printed mount to the back of our Rigol DHO804 oscilloscope to make it quieter when in use

12 December 2024 7 min read

Zwift ESP32 Bluetooth Wireless Keyboard Controller

Making a custom controller for the cycling training software Zwift, with a ESP32 Feather Bluetooth wireless keyboard controller using a Adafruit ESP32 Feather V2.

27 October 2024 13 min read

Monitoring Air Quality with the AirGradient Open Air Outdoor Monitor and Home Assistant

Using an open source air quality monitoring system from AirGradient, we have added outdoor air pollution data logging to Home Assistant and our long term data logger online.

23 October 2024 4 min read

Amazon Echo Spot Teardown - Smart speaker with LCD

Welcome to a in-depth teardown of the 2024 Amazon Echo Spot Smart Speaker with LCD display. In this blog post, we'll be taking a closer look at the inner workings of this popular smart home device, uncovering the components that power its advanced features, and exploring its construction

11 September 2024 31 min read

PartFinder 2.0 Core component inventory manager

This is a new release of the PartFinder component inventory manager I released four years ago in March 2020 which now runs on Windows, Mac and Linux.

21 June 2024 11 min read

ESP32 RGB Microscope LED Ring Light

Designing a new RGB LED ring light for our microscope with an ESP32 WiFi controller using a manual control and web interface

13 April 2024 15 min read

Fujinon Pro 2010 Night Vision Scope Infrared LED Mod

We added an infrared LED into our Fujinon Pro 2010 night vision monocular to help with night vision illumination

30 January 2024 4 min read

Three Elgato Key Light remote control using an ESP32 Wi-Fi module

Building a remote controller for three Elgato Key Lights using a low-cost ESP32 Wi-Fi module with push switches and indicator LEDs

26 January 2024 15 min read

BOBOVR M3 Pro battery pack inductor noise fix on Meta Quest 3

Modifying a BOBOVR M3 Pro VR headstrap battery for the Meta Quest 3 to reduce audible noise from the battery pack.

25 November 2023 5 min read

Buying Used Test Equipment from Ham Radio Rallies

Visiting FRARS Hamfest in Wimborne and buying used test equipment from Ham radio rallies

21 August 2023 9 min read

Amazon Echo Pop Smart Speaker teardown

New teardown and looking inside the latest Amazon Echo Pop smart home speaker and Amazon Alexa smart home device

23 July 2023 13 min read

Amazon Echo Dot 5th Gen Smart Speaker Teardown

Taking a look inside the latest Amazon Echo Dot 5 smart home speaker and Amazon Alexa device, now with a new larger speaker and temperature sensor

28 November 2022 9 min read

ModBus to MQTT WiFi Bridge for a Solis 1.5kW Inverter

Using an ESP32 WiFi module to create a ModBus to MQTT WiFi Bridge for a Solis 1.5kW Solar PV Inverter to log data with Home Assistant

30 October 2022 7 min read

Ham Radio Asterisk Allstar Gateway with a Tait 8110 and Raspberry Pi

Setting up the hardware and software for an AllStar Link Gateway using a Tait TM8110 which is a 25W PMR radio with a Raspberry Pi and USB sound card interface

08 October 2022 16 min read