Robert Harder

Setting up Bluetooth to Bluetooth Master with HC-05 for my 16×2 LCD Office Door Sign July 30, 2014

For my office door I’ve made a sign using a 16×2 LCD display controlled by an MSP430 and connectable via Bluetooth. A button lets me cycle through canned messages like, “The doctor is in,” and “At lunch.” Via Bluetooth I can give it an ad hoc message that I had not pre-programmed.

Door sign using 16×2 LCD, MSP430, Bluetooth, and 433Mhz radio

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