MKR IoT Carrier is an IoT interface and peripheral board for Arduino’s MKR WiFi 1010 single-board computer. Also know as the Oplà interface, it includes: sensors for temperature, humidity, barometric, ...

Universal (ish) Arduino grbl opto-coupler interface also works with logic-level pwm In adding an alternative cutter drive motor (‘spindle’) to an existing cnc machine, an electrically isolated pwm to ...

The Organiser II, with its brand-new USB interface One of those enthusiasts is [James Stanley], who designed and built a USB interface for the Psion Organiser II.

The nunchuck is meant to plug into a Wii controller and the connection is I 2 C, so that’s trivial to interface to an Arduino or other small microcontroller. The only issue is making the connection.