Tiny new board is smaller than Raspberry Pi Zero and optimized to run Python programming language


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The Pyboard D-series’ ace-in-the-hole is its effectivity, with the board working MicroPython, a model of the Python Three.four custom-made to run on low-power microcontrollers.

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A tiny new, low-power board has been launched that provides a brand new means for builders to manage do-it-yourself and DIY devices.

The Pyboard D-series’ ace-in-the-hole is its effectivity, with the board working MicroPython, a model of the Python Three.four programming language custom-made to run on low-power microcontrollers with as little as 16KB of RAM.

Efficiency is additional bolstered by not working a Linux-based OS, with MicroPython as an alternative working bare-metal on the Pyboard, described by the board’s makers as “like having a Python working system”.

Nevertheless, whereas the Pyboard D-series might have trimmed efficiency overheads, the is comparatively modest, providing a 216MHz CPU and ~256KB RAM, as a part of the Pyboard D-series’ STM32F722 microcontroller.

The Pyboard D-Collection is smaller than each the Raspberry Pi Zero and PocketBeagle and is totally different from each of those boards in that it’s primarily based round a microcontroller and cannot be used as a pc working a full Linux OS.

SEE: Extra Raspberry Pi protection (TechRepublic Flipboard journal)

As a substitute the Pyboard’s focus is on controlling and interacting with hooked up digital through the big selection of interfaces on the board. The underside of the board has a WBUS header, a compact 40+40-pin mezzanine bus connector providing entry to all energy and IO ports.

The Pyboard presents 46 impartial GPIO (basic goal input-output) pins, with 24 obtainable through by means of holes, and an extra 11 GPIO pins shared with SD card, USB, USR button, Bluetooth audio.

There’s built-in assist for wi-fi connectivity, through 802.11n Wi-Fi and Bluetooth four.1 and an SD card reader to increase the present ~2MB flash storage.

Controlling the Pyboard is comparatively easy however requires a separate laptop. The board connects to a PC through the board’s microUSB port, permitting the person to hook up with the board utilizing any serial program, which is able to give them a Python REPL command-line immediate. From that immediate, customers can sort and execute Python instructions on the board as they might when working Python on the PC.

It is also potential to ship Python scripts to the board to be executed instantly, to repeat a Python script to an SD card to be run when the board begins, and even to compile an utility to run as a part of the board’s firmware — which is able to additional cut back MicroPython’s already low RAM consumption and increase start-up time however which is described as an “superior function”.

The draw back of the brand new board is its value, which at £43.80 (~$58), is significantly greater than the $10 Raspberry Pi Zero W and $25 PocketBeagle. Regardless of this price distinction and the Pyboard’s CPU’s comparatively low clock pace, there’s debate over whether or not the optimizations on the Pyboard imply it is able to working embedded functions extra quickly than the 1GHz CPU discovered on the Pi Zero.

One other potential downside is that sure options on the Pyboard will not be but obtainable in software program, with assist as a consequence of be added later, essentially the most notable of which is assist for the board’s onboard Wi-Fi and Bluetooth.

The board can be obtainable for £58 with an extra high-speed USB interface and for $69 with a distinct mannequin of microcontroller.


  • STM32F722IEK microcontroller
  • 216 MHz Cortex M7 CPU with single-precision floating level
  • 512KiB inner flash ROM and 256KiB inner RAM
  • 2MiB exterior QSPI flash with execute capabilities to increase inner flash
  • Further 2MiB exterior QSPI flash for person filesystem and storage
  • Built-in, high-performance WiFi and Bluetooth four.1 (traditional and BLE) through Murata 1DX module (with CYW4343)
  • TCP/IP and Bluetooth stacks run on the primary microcontroller, absolutely customisable
  • On-board fractal chip antenna for WiFi and Bluetooth
  • uFL connector for attaching exterior antenna, selectable through RF change
  • Micro USB connector for energy and serial communication
  • Micro SD card slot, supporting normal and excessive capability SD playing cards
  • Actual time clock with extremely correct pre-calibrated exterior oscillator
  • Bodily electrical connectivity through 24 by means of holes, and a 40+40 pin mezzanine bus connector
  • 46 impartial GPIO, with 24 obtainable through by means of holes
  • Further 11 GPIO shared with SD card, USB, USR button, BT audio
  • 2x I2Cs, 4x UARTs, 3x SPIs, 1x CAN interfaces
  • 3x 12-bit analog to digital converters (ADC), obtainable on 16 impartial pins
  • 2x 12-bit digital to analog converters (DAC), obtainable on 2 impartial pins
  • 1x Three-colour RGB LED
  • 1 reset and 1 person button
  • On-board Three.3V LDO voltage regulator to provide most important microcontroller
  • Further, person switchable, on-board Three.3V LDO voltage regulator to energy SD card and exterior parts
  • Dimensions: 33.5mm x 23.8mm
  • 2 mounting factors
  • Customized DFU bootloader for straightforward upgrading of firmware

Learn extra about single-board computer systems

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