Homebrew PCBs first attempt
Here is the first PCB that came out alright: There were several fails before this….
OpenWave – take 2
I was thinking about openwave again recently and have started making moves to give it a go again. The short version of the project is this: So yeah basically the reason I gave up last time is the maths got too hard for me basically. But now ChatGPT exists so it will be interesting to…
Making a vibration table using a subwoofer
Needed to make a vibration table on the cheap. Bought this subwoofer in halfords: The plan was to stand it upright and attach a table to its speaker cones and then use it for doing vibration testing on electronics parts. Thei nice thing about this system is it comes with an integrated amplifier so I…
Pretty Small Robot – Adding MQTT For Remote Control
As with most micro python ESP32 stuff – adding MQTT control was about as easy as it can get. I installed the mosquitto MQTT broker on a raspberry pi which was connected to my local wifi network. The robot was also connected to this same network. Then this python script was used to send MQTT…
Pretty Small Robot – First Working Prototype
Project Update So it turns out there are versions of the esp32-s2 chip that don’t have any onboard flash. It took me the bones of 2 weeks and lots of debugging to finally arrive at that little nugget of truth. The boards that I had assembled by JLCPCB had the ESP32-S2. When I tried to…
