This project documents the technical details of Amazon Dash Button for those who want to tap into the potential of this inexpensive yet powerful IoT device.

Specs:

STM32F205RG6 Microcontroller

• Cortex M3
• 120MHz
• 1M Flash Memory
• 128KB RAM

ADMP441 Digital Microphone

• I2S interface

SST25VF016B SPI Flash

• 16Mb

RGB LED

BCM943362 WIFI module

• Single-Chip IEEE 802.11 b/g/n MAC/Baseband/Radio + SDIO

Pinout

See This PDF.

Programming

Connect SWDIO and SWDCLK to your favourite programmer to upload your own program into the Dash Button, I used the built-in ST-Link 2 on a STM32F0 Discovery board.

I use Coocox IDE since it's free, a simple Blink project that blinks the RGB LED is provided.

Flash Dump and Debug Output

See their respective folders