The ItsyBitsy M4 Express is a powerful and versatile development board powered by a 32-bit Cortex M4 microcontroller running at 120 MHz. It features two 12-bit DACs, seven 12-bit ADCs, and plenty PWM-capable outputs.
This page provides an overview of the pins made available via the Grove headers on the Bitsy Expander M4.
For detailed information on the pinout of the ItsyBitsy M4 Express, refer to Adafruit's documentation:
Jump ahead to pinout diagram:
- Pinout for Standard Usage
- Original Bitsy Expander (Version 1.1)
- Alternative Use with ItsyBitsy RP2040
The pinout of this version is identical to the version pictured above. The only major difference is the absence of the additional I²C header at the top of the board. This diagram serves as a visual reference for older boards still in circulation.
Should you opt to use a Bitsy Expander M4 with an ItsyBitsy RP2040 development board, please refer to the pinout diagram below:
