The Peacock

The peacock is a prototyping platform for add-ons with RGB LEDs, STM32F030 microcontroller, 32KByte EEPROM, and a pizeo buzzer:

and the back side:

Hardware features

• STM32F030F4 ARM Cortex®-M0 CPU with 16KB of Flash memory, 4KB of SRAM connected to the I2C bus
• 32KB (256kbit) I2C EEPROM for data storage (address 0x51)
• 256 byte I2C EEPROM for Add-on ID descriptor
• 10 WS2812 RGB LEDs connected to GPIO1 pin
• Piezo buzzer connected to GPIO2 pin
• 9 x Blue LED controlled by the STM32 microprocessor
• Break out pins for 8 of the STM32 GPIO pins
• SOICbite programming interface

Schematic diagram

Sample code

The following code snippet configures the 10 RGB LEDs (neopixels) and cycles them through 4 different colors: red, green, blue, and purple.

import neopixel

import board

import time

colors = [

(80, 0, 0), # Red

(0, 80, 0), # Green

(0, 0, 80), # Blue

(80, 0, 80), # Purple

]

pixels = neopixel.NeoPixel(board.GPIO1, 10)

for color in colors:

for i in range(10):

pixels[i] = color

time.sleep(0.1)