Make a simple but challenging badge with an LED matrix display and an ATtiny13!
Project tutorial by Team FabLabAQ
This is a small, smart OLED badge that displays logos, messages, and poems.
Project tutorial by Ashwini kumar sinha
How to upgrade the BadgerStick Arduino board by SparkFun, if you got one at SXSW 2015
Project tutorial by Georgitzikis Vasilis (tzikis)
A badge to flash LED and play tone with adjustable tempo/blink rate.
Project tutorial by Shahariar
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