In this new pH sensor, fluid samples run through a series of microfluidic channels and over three highly sensitive electrodes made out of light-responsive layered materials and metals.

Looking to interface your Arduino with the PS4 controller? [Kristian] has updated his USB host library with support for the controller. The library makes it easy to read most of the inputs from the… ...

In case you missed it, the big news is that a minimal Arduino core is up and working on the ESP32. There’s still lots left to do, but the core functionality — GPIO, UART, SPI, I2C, and … ...