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Description

The pyboard is a compact and powerful electronics development board that runs MicroPython. It connects to your PC over USB giving you a USB flash drive to save your Python scripts and a serial Python prompt (a REPL) for instant programming. Works with Windows Mac and Linux.

MicroUSB cable not included but you can pick one up from the store!

MicroPython is a complete re-write of the Python (version 3.4) programming language so that it fits and runs on a microcontroller. It includes many optimisations so that it runs efficiently and uses very little RAM.

MicroPython runs bare-metal on the pyboard and essentially gives you a Python operating system. The built-in pyb module contains functions and classes to control the peripherals available on the board such as UART I2C SPI ADC and DAC.

There are 3 main ways to control the pyboard:

• REPL:Connecting to your PC via USB the board appears as a USB virtual comms port (CDC VCP) and you can use any serial program to connect and get a Python REPL prompt. This allows you to instantly type and execute Python commands just like you would when running Python on your PC. You can also redirect the REPL to any of the UARTs on the pyboard.
• Remote script:You can change from REPL to raw REPL mode by sending ctrl-A and then in raw REPL mode you can send an arbitrary Python script to the board for it to execute immediately. A Python script is available which makes using this mode very simple: you just runpython pyboard.py script_to_run.pyand this will executescript_to_run.pyon the pyboard returning any output.
• From file:The pyboard has a small built-in filesystem which lives in part of the flash memory of the microcontroller. It also has an SD card slot if you want to extend the available storage. When you connect the pyboard to your PC it appears as a USB flash storage device and you can access (mount) the internal filesystem and the SD card this way. If you copy a Python script to the filesystem and call itmain.pythen the board will execute this script when it starts up. This way you can run scripts without being connected to a PC.

Main features of the hardware:

• STM32F405RG microcontroller
• 168 MHz Cortex M4 CPU with hardware floating point
• 1024KiB flash ROM and 192KiB RAM
• Micro USB connector for power and serial communication
• Micro SD card slot supporting standard and high capacity SD cards
• 3-axis accelerometer (MMA7660)
• Real time clock with optional battery backup
• 24 GPIO on left and right edges and 5 GPIO on bottom row plus LED and switch GPIO available on bottom row
• 3x 12-bit analog to digital converters available on 16 pins 4 with analog ground shielding
• 2x 12-bit digital to analog (DAC) converters available on pins X5 and X6
• 4 LEDs (red green yellow and blue)
• 1 reset and 1 user switch
• On-board 3.3V LDO voltage regulator capable of supplying up to 300mA input voltage range 3.6V to 10V
• DFU bootloader in ROM for easy upgrading of firmware

SD Card not included but we have plenty in the store!

Click here for references schematics and more documentation on the MicroPython.