South West Makers

Cedric a good friend who I met in Shenzhen years ago, recently put me onto the new range of STM32 MCUs. These are meant to eventually replace their STM8 8-bit MCU range. One of them is only 1.4mmx1.4mm in size. However to get access to the center BGA pins, you need currently to pay a steep manufacturing price for thin tracks and/or very fine vias. I made this PCB so I could experiment with tying or chaining some of the pins together and therefore getting access to the center pins and therefore being much cheaper to manufacture. While I have yet to test this concept out, I have tested the breakout board with a simple blink LED program before I left home for another visit to Shenzhen.