PX-HER0 ARM Cortex-M0 Development Board and Ecosystem is for Beginners and Veterans (Crowdfunding)

PX-HER0 ARM Cortex Development Board and Ecosystem

Piconomix is offering an embedded Arm Cortex-M0 development board that is aimed at the education, beginner maker, and enthusiast crowd. The PX-HER0 is a development board with an ecosystem of sourcing materials for learning the entire ARM structure through an open-source C library and full documentation.

Click to Enlarge

The Basics of the Board

The PX-HER0 is a low-power board, running an STM32 MCU with an Arm Cortex-M0 core. There is an LCD Display, that is viewable even in direct sunlight, and the entire package is lightweight and very functional.

Mass Storage

To activate the bootloader, a double-tap of the RESET button, and the mass storage drive HERO-BOOT appears in the host computer. Drag and Drop are active and the UF2 file can be dragged right to the drive.

The Ecosystem

The ecosystem for the PX-HER0 is backed by an extensive C Library and documentation on GitHub Piconomix repo. There is an Arduino tutorial for the HER0 board explaining how to use it with the Arduino Core STM32 library.

The documentation found on FwLib page at Piconomix.com includes:

    • Getting Started Guide
    • Bootloader Page
    • Board Specific Examples
    • STM32CubeIDE Getting Started Guide
    • Arduino Support
    • ARM and STM32 Getting Started Guide
    • Tutorials STM32
    • CLI Explorer App


  • MCU – STMicro STM32L072RB ultra-low-power ARM Cortex-M0+ with 128k FLASH, 20k SRAM, 6k EEPROM
  • External Storage – Adesto AT25SF041 4 Mbit serial flash memory, spring-loaded push-push MicroSD card slot
  • Serial communication: Rock-solid FTDI FT230XS USB-serial bridge
  • Low-power 128 x 64 monochrome graphic LCD with LED backlight
  • User LED and battery charger LED
  • Piezo buzzer, 6 user buttons, Reset button
  • Peripheral connectors:
    • PWR (3.6 V – 5 V )
    • 4x – ADC
    • 1x – DAC
    • 8x – GPIO / 4x- PWM
    • 2x – UART
    • 3x – I²C  (single I²C bus)
    • Sparkfun Qwiic / STEMMA QT I²C connector
    • Seeed Grove I²C
    • SPI
  • Power:
    • Li-Po battery charger
    • A zero-burden voltage monitoring circuit
    • TI LM3670 step-down DC-DC regulator
  • Dimensions:
    • Board – 100 x 80 mm (3.94 x 3.15″)
    • Display active pixel area – 48.6 x 24.9 mm (1.91 x 0.98″) / 54.6 mm (2.15″) diagonal

The system can be applied to areas such as 

  • Practical embedded engineering course for students and professionals
  • Low-power foundation for IoT sensors
  • Long-term data logger
  • Environmental monitoring for citizen scientists
  • Control panel
  • Test fixture

The Campaign and Pricing

The Crowd Supply campaign is running and pricing is up as well as some delivery timeline information. Single Board $42.00 – Single Board with ST-LINK-V3MINI – debugger – $56.00

Shipping July 23, 2020 – Funding ends April 2020

Share this:

Support CNX Software! Donate via cryptocurrencies or become a Patron on Patreon

ROCK Pi 4C Plus
Notify of
The comment form collects your name, email and content to allow us keep track of the comments placed on the website. Please read and accept our website Terms and Privacy Policy to post a comment.
Weller PCB manufacturer