Arduino created a Renesas RA4M1 microcontroller board in its Nano form-factor. Called Nano R4, it follows the Uno R4, the first Arduino to use the RA4M1. Episode 13 of our podcast CHIIPs is out now, ...

The expansion board is claimed to be the world's first to enable the development of 3.3V Arduino compatible applications using a 32-bit high-performance MCU in a prototyping friendly package.

Embedded Pi connects to the GPIO on the Raspberry Pi and is form factor compatible with both 5V and 3.3V Arduino shields, selectable with jumpers. The 32-bit ARM Cortex-M3 STM32F103 MCU operates at ...

There is a level shifter so a 5v (Arduino UNO, etc) or a 3.3v (Arduino Zero, Raspberry Pi, etc.) micro controller can be used. Both can work simultaneously.

The chipKIT hardware is compatible with existing 3.3V Arduino shields and applications, and can be developed using a modified version of the Arduino IDE and existing Arduino resources, such as ...

Posted in Misc Hacks Tagged 3.3v, 3.3V regulator, regulator, transistor, zener diode ← Printed Parts Make DIY Electric Longboard Possible Sable-Machined Slingshot Is A Composite Marvel → ...