DIY I2C Tester | Hackaday

DIY I2C Tester | Hackaday



[Dilshan] built a dedicated I2C tester which allows for I2C bus control over USB using simple commands such as init, read, write, etc. The Linux kernel has had I2C driver support for a couple of decades, but you’ll be hard pressed to find a computer or laptop with a I2C connector (excluding Bunnie Huang’s Novena hacker’s laptop, of course). This tester does require a Linux host, and his programs use libusb on the computer side and V-USB on the embedded side.

Microchip overview page calling it a 44-pin chip), supported by a handful of resistors and transistors. Schematics are prepared in KiCad, code is compiled using gcc and avr-gcc, and he provides a label for the enclosure top. The only thing missing is information on the enclosure itself, but we suspect you can track that down with a little sleuthing (or asking [Dilshan] himself).

If you use I2C quite a lot, give this project a look. Easy to build, useful in the lab, and it looks nice as well. We have featured [Dilshan]’s work over the years, including this logic pattern generator and his two-transistor-on-a-breadboard superheterodyne receiver.




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