I sorted out the issues with my development board so now I could concentrate on the firmware I wanted to create - The firmware for a sensor node that would interact with the gateway I wrote about previously. Like the gateway, I wanted to achieve this using Test Driven Development. This would be the first time I have tackled this approach on an embedded project. The full write up can be seen on my blog Developing a Remote Sensor Firmware using Test Driven Development.
I replaced my Raspberry Pi + Django LED lighting system user interface module with a unit based on an ESP32. This cut the power consumption from an average of 50Wh to 20Wh per day. I have a write up to talk about how KiCad helped to overcome the mechanical constraints when building some boards to fit into an enclosure to fit on a DIN rail.
Upgrading the Stairwell Foot-lighting Project
