links to useful open hardware or diy tools by category followed by plans for our own designs.
open source electronics lab
bench power supplies
- https://web.archive.org/web/20191207183955/http://www.ark-ham.net/PDF/hamATXPowerSupply.pdf
- https://www.crowdsupply.com/envox/eez-bb3
- https://www.crowdsupply.com/envox/eez-h24005
bus pirate (microchip interface)
1-Wire, I2C, SPI, JTAG, asynchronous serial (UART), MIDI, PC keyboard, HD44780 LCDs, and generic 2- and 3-wire libraries for custom protocols