Overview In a previous post, I had shared some pics of the dev board I had been working on. It contained a variety of features that I felt would be useful on a dev board. However, due to a mistake on my part, there were shorts in the design due to my misunderstanding of how…
Category: Packages
PCB Interface Board for Vive VR TRacker
General Goal So I was playing with the room-scale VR tracking trackers and wanted to break out some of the pins to add in switches and such. Design Considerations The Vive VR trackers are basically round pucks for a base and a pronged crown for the external portion. The prongs contain the cameras which watch…
STM32 Dev Board With CH340G USB
Overview Development board employing an STM32 MCU with a CH340G USB interface IC. LED(s) associated with GPIO pins. Inertial Motion Unit, TCA6424 I2C GPIO Expander. Errata So the boards arrived and they look GREAT! However, upon plugging them into the USB, some Bad Things(tm) happened: The USB ports overheated. The laptop it was plugged into…
USB-A PCB Interface Card
Overall Idea I was working on a Christmas ornament PCB that was meant to be something that you could power with USB. However, the design fell through for a number of reasons: PCB was too thin Schematic had some bugs Timing didn’t allow for a redo JLCPCB doesn’t do PCBA(PCB assembly) for boards that are…
ESP8266 Wemos D1 Mini GPIO Expander
Overview So a few years ago, I had purchased a good number of Wemos D1 Mini modules. However, I never got around to actually doing anything with them other than giving them away every now and then. Design Considerations The number of GPIO on the board is woefully low, if you wanted to control a…