Arduino nano code for a WS2812B/Neopixel Wordclock.
Connect Arduino Nano and HC-05 Module:
VCC -- 5V
GND -- GND
TXD -- TX1
RXD -- RX0
Upload Sketch with empty setup() and loop(). Open Serial Monitor with "NL and CR" and 38400 Baud rate. Type the following:
- AT+CLASS=1 // hold HC-05 Button while pressing Enter
- AT+ROLE=0
- AT+NAME=Wordclock-<NAME>
- AT+PSWD=0000