I have lost my way in the world of software and its now time to brush the dust off my interest in building hardware
The Timed LED Lighting Control project has been driving the LEDs in our stairwell since 2017. The system is based on two modules. A custom built LED driver, which has been running faultlessly, and a Raspberry Pi + Django based user interface. This year the user interface module died. In this post, I describe the … Continue reading Upgrading the Stairwell Foot-lighting Project
Introduction I have written about the Timed LED Lighting Controller in previous posts. Starting with the original entry “Stairwell Foot Lighting System”. In this entry I will be wrapping up the project and describing the change of direction from the initial design and layout. There may be a bit of overlap but it will be … Continue reading Wrapping up the Timed LED Lighting Controller Project
In the last entry for the Timed LED Lighting Controller, I realised that there are no working examples of an I²C driver for the ATtiny20. I then had to work through the data sheet to implement my own. With that done, I could then start on the application firmware and get the board really working. So … Continue reading From Proof of Concept to Prototype
In this post I describe the trials an tribulations of bringing up my Timed LED Lighting Controller and how I went about implementing my first I²C Slave Driver for the ATTiny20. I was keen to receive the boards for the Timed LED Lighting controller to know if they would fit in the chosen housing. The … Continue reading Back to Blinky
In the last post for the Timed LED Lighting Controller, I had figured out the circuit and a basic layout and approach that I was happy with. That is to separate the hazardous voltage from the control circuitry by putting it on a separate board. But still, this was not enough. I need to assemble … Continue reading “Mocking” – Minimising Risk
From Logical to Physical Before I could start to translate the block diagram into KiCad, I needed to be sure about some of the parts I will be using. I want to reuse what I already have installed, so the motion detection module is already a given, along with the LED drivers. The micro controller needs three … Continue reading Timed LED Lighting Control – Design
When getting back into electronics, one of the projects I had in mind was to revamp our stairwell lighting system. In 2010, we renovated our stairwell. I took the opportunity to design in a foot-lighting system that was motion controlled. It has worked faultlessly for the last six years. But who can stop at revision … Continue reading Stairwell Foot Lighting System
Rebooting Electronics 