CircuitPython on Snekboard

You can download CircuitPython firmware for Snekboard from circuitpython.org.

To install, press the blue reset button twice within about a second. This should cause the blue LED to flash quickly and then pulse slowly once it is connected to your laptop. It should appear as a new device. Copy the firmware file to this device. Once installed, Snekboard will restart running CircuitPython. You can use the Mu editor to write code and talk to the device.

Pin Names

CircuitPython for Snekboard has custom names for the GPIO pins which are related to what they're connected to on the board:

Pin Names	GPIO Pin	Pin Use
A1, RX	PB08	Regular I/O or serial receive
A2, TX	PB09	Regular I/O or serial transmit
A3	PA06	Regular I/O
A4	PA07	Regular I/O
A5, SCL	PA08	Regular I/O or I²C clock
A6, SDA	PA09	Regular I/O or I²C data
A7	PA10	Regular I/O
A8	PA11	Regular I/O
POWER1	PA12	M1 motor PWM
DIR1	PA16	M1 motor direction
POWER2	PA13	M2 motor PWM
DIR2	PA17	M2 motor direction
POWER3	PA18	M3 motor PWM
DIR3	PA20	M3 motor direction
POWER4	PA19	M4 motor PWM
DIR4	PA21	M4 motor direction
NEOPIXEL	PB11	Neopixels