Electronics

Building an ESP32 Light Controller

In this post I am going to do a deep dive into the electronics design for my simulated sunrise/sunset aquarium light project. If you have not read that post, I recommend starting with that. Disclosure: JLCPCB is sponsoring my projects, but I had already been a big fan of their …

Electronics

Oscilloscope Current Measurement on the Cheap

I have been spending a lot of time working on microcontroller power optimisation recently, and not having a current probe for my oscilloscope has been quite inconvenient. Working with current optimisation without a current probe is like designing a circuit without an oscilloscope – shooting in the dark. Can I …

Electronics

Simulating Sunrise/Sunset For My Aquarium

Why? This is what I started with: It’s… fine, but the lighting left a lot to be desired. Lighting is not just aesthetic – those are real plants, and plants require light for photosynthesis. A lot more light than most people imagine! In a tank of this size, with plants …

Project Log

Building a Bamboo Planter (aka My Neighbours’ Cats’ Toilet)

I live in a huge apartment block on the ground floor with a private garden facing a large communal garden. The view is nice, but the lack of privacy bothers me, so I have taken to growing bamboo to make a living privacy screen. I don’t want to use commercial …