pi-pico-printer-board

Features

Klipper compatible
Uses Raspberry Pi Pico (RP2040)
High reliability Weidmüller push-in connectors for all inputs and outputs
20A max and 7.5A max separately fused heater outputs
4x 3A max general purpose PWM outputs, individually configurable for 12V or 24V power, capable of driving inductive loads
3x thermistor inputs with 2.4Kohm pull up resistors
4x endstop inputs with one configurable for 5V or 12V operation for Z-probe
4x motor driver sockets
Onboard 12V 3A and 5V 3A buck converters for powering accessories including Raspberry Pi
Compatible with both 12V and 24V systems; components rated for 28V
Compatible with both TMC2209 and A4988 motor drivers, and possibly others
ESD and short-to-Vin protection on all microcontroller inputs
Motor driver ESD and coil overvoltage protection
Indicator LEDs for all power rails and outputs
Alternatively supports 2.54mm pitch (Molex SL), or 2.5mm pitch (JST SM) headers for all inputs and outputs
Labeled PCB for ease of setup and tinkering
Open source PCB design

This project is released under the CERN Open Hardware Licence Version 2 - Weakly Reciprocal (CERN-OHL-W V2).