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Pinout Diagram

Click the image above for a high-resolution version.

Interactive Bill of Materials

We also maintain an interactive bill of materials that has most pins and jumpers marked as per the board design.

Click a component on the front or back of the board to learn more about it. Some components have a description for further information.

Essential Connections

There are only 2 necessary connections to use the board:

1. INPUT connector - for your VIN and CAN(-FD)
2. MOTOR connector - for your NEMA17 stepper motor

INPUT Connector (XT30 2+2)

• CAN-H: Yellow wire
• CAN-L: White wire
• VIN: Red wire (typically 14-32V DC)
• GND: Black wire

MOTOR Connector (XH 2.5, 4-pin)

A standard 4-wire bipolar stepper motor connection. Use the included cable and PH 2.0 connectors to adapt to your motor’s PH 2.0 connector. Most NEMA17 motors will have a 6 pin PH 2.0 connector with only the two outer and two inner pins connected.

The 2 inner pins are usually flipped, so the A,A,B,B pattern (Black, Green, Blue, Red) from the Ultralight N17 will end up as A,NC,B,A,NC,B or Black, Red, Green, Blue

RP2350 GPIO Assignment

For reference, the following lists the GPIO pins on the RP2350 MCU and their assigned function:

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