Category: Electronics
-
MPPT charging module
Over the past few years, I’ve been gradually tinkering with the ever-expanding world of LoRa hardware, which has become increasingly affordable and accessible to hobbyists. Like many people, my first real exposure came through Meshtastic. While the project itself was impressive, I was initially quite underwhelmed by the lack of adoption in my local area.…
-
Barcrest MPU4 Double Up / Centrepoint
Some time ago, I was sent a Barcrest Double Up fruit machine program cartridge to dump. At first glance, it seemed fairly straightforward, but it didn’t take long for things to get a little more interesting. The cartridge appeared to be running version 1.3, which immediately stood out. Every reference I could find online pointed…
-
Atari Lynx 1 repair
I was asked to look at an Atari Lynx 1 console that had developed a graphics fault. Testing with my Zaku cartridge we see the fault straight away. Looking at the schematics you can see a number of lines to the LCD come from the MIKEY custom. On checking the signal at Pin 1 of…