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A badge with interactive lightning and music


Introduction

For KeyBoard, we just want to make PCB a fine look and more interesting. It is an interactive badge with touching, lightning, and melody. You can wear it on your neck or fix it to your bag. Press the lightning icon to switch between two modes. One is a mini piano while another is circular melody and chasing light. Enjoy a wonderful night at music live with KeyBoard!


Specification

Microcontroller: ATMega328P

Operating Voltage: 3.3V

Flash Memory: 32KB of which 0.5KB used by bootloader

SRAM: 2KB

EEPROM: 1KB

Clock Speed: 16MHz

Working Current: 30mA (when buzzer on)

Static Current: 8mA (when buzzer and led off)

Sleep Current: <1mA

Charge Time: 30 min

Standby Time: 8 hours

Keys: 10

LEDs: 8


Reference

How to use

Eagle file