One part that I find myself using somewhat regularly in microcontroller-based experiments is the “USB power bank” that provides USB-standard 5-V DC output and offers some basic protection features.

This articles describes how you can use I2C (TWI) communication, Arduino and temperature sensors to measure 3 different temperatures. It can be very helpful when you want to measure the outside, ...

[Jesus Echavarria] sent us a link to this cute little tool that he’s built. It’s a dual USB-to-I2C-or-UART adapter, with a few more oddball features thrown in for good measure. If you were electronics ...