Open Badge: The LED Badge
https://www.electronics-lab.com/open-badge-the-led-badge/
Rohit Gupta published a new build, the OpenBadge The major elements on the PCB were: – LED Matrix – A MSP430G2553 microcontroller brain – A ULN2803 Darlington Driver to sink the current – A USB connector to charge the battery – A SBW connector to program the MSP430 – A Switch to change the message […]