PX-HER0 Board

The expert field guide to embedded ARM systems

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The PX-HER0 board has been carefully crafted to engage human senses (sight, sound, and touch) and map the journey to becoming a true embedded hero. Discover and free your inner hero!

Features & Specifications

  • Microcontroller: STM32L072RB ultra low-power ARM Cortex-M0+ (128k flash, 20k SRAM, 6k EEPROM)
  • Memory: Adesto AT25SF041 4 Mbit serial flash memory
  • Storage: Spring-loaded push-push micro SD card connector
  • Serial communication: Rock-solid FTDI FT230XS USB-serial bridge
  • Rich user interface:
    • Low-power 128 x 64 monochrome graphic LCD with LED backlight (excellent visibility in direct sunlight!)
    • User LED and battery charger LED
    • Piezo buzzer
    • 6 LARGE finger-friendly user buttons
    • Reset button
  • Peripheral connectors:
    • I²C x 3
    • PWR (+3.6 V to +5 V power bus)
    • ADC x 4
    • DAC x 1
    • GPIO x 8 / PWM x 4
    • UART x 2
    • SPI x 1
  • Power: Li-Po battery charger and zero-burden voltage monitoring circuit
    • Efficient power-path management
    • True power on/off circuit
    • 95% efficient TI LM3670 step-down DC-DC regulator

Potential Applications

  • 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
  • Sexy badge flair

CLI Explorer App

Also included is the CLI Explorer App (Command Line Interpreter) that creates a “Un*x Shell”-like environment running on the PX-HER0 board so that you can easily experiment with GPIO, PWM, ADC, DAC, I²C, SPI and 1-Wire using only ANSI/VT100 terminal software.

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