A breakout board that, along with grblHAL and a Rapsberry Pi Pico microcontroller, creates a powerful CNC motion controller for devices like routers, mills, lasers and lathes. Using grblHAL, it forms the basis of a motion control system with advanced features.
Key features of the PicoCNC board.
- Supports up to 4 Axes via Screw Terminal and Pin Header.
- Spindle control.
- PWM (5V).
- Direction (5V).
- 0-10V.
- 12V PWM supported (via open collector output).
- Limit Switches for each axis.
- Supports switches or powered proximity sensors.
- 12V for better EMI immunity.
- Separate power input for full isolation
- Opto-isolated
- Relay support
- Directly drive up to 7 relay coils via open collector outputs.
- Relay Coil voltage selectable between +5V or +12V.
- Drive up to 11 SSR or Logic Level relays.
- Isolated standard Grbl input controls: Cycle Start, Feed Hold, EStop and Safety Door. Opto-Isolated.
- Opto-Isolated Probe input.
- Supports both Pico and Pico W.
- Comunications.
- USB (via Pico and Pico W)
- WiFi (via Pico W)
- Ethernet (via Wiz850io Ethernet Module)
- Micro SD Card socket. Allows storage of GCode programs. GCode programs may be run from the SD Card.
- Dust Collection support.
- Dust Collection relay and TTL output ganged to Spindle.
- Header for a switch to manually run Dust Collector.
- Flexible power input. Two 12V sections, one for Stepper/Servo output, relays and spindle control, one for isolated limit, probe and control inputs. The two sections may be joined for the budget conscious builder. On board 5V generation.
- LED indicators for 12V inputs, +5V and spindle active.
- Open collector outputs allow adding pull-up resistors on the board.
- Expansion headers for I2C, SPI and UART. UART 3.3V/5V translation supported.
- Powered by open source software - grblHAL.