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Overview

A kick-ass ARM board with everything you need all in a compact package that fits in your pocket. Integrated battery, power management system, USB bootloader, 4 high-power PWM outputs, and 13 GPIOs.

Why? After stringing together countless portable LED controllers that consisted of wiring a flat lipo battery to a charge controller to a switch to an arduino nano, I wanted something better. I always found those versions to be janky, unpleasant and fragile -- not to mention concerned that damaging the silver pouch cell battery might make it explode! This board has everything I need with room to expand.

Getting Started

Features

• 32-bit microcontroller with frequency up to 100Mhz (STM32F11xx)
• High-capacity 18650 lithium battery with integrated 500mA charger
• 4 high-current PWM outputs (2.3A per channel!) with an LED on each for debugging.
• Additional 12 GPIOs (USART, I2C, SPI, USB)
• USB bootloader
• Tactile on/off switch
• Tactile user button with built-in debounce circuit
• Breadboard friendly
• Supports Arduino & CircuitPython.