1. One At A Time:

2. Upper/Lower Case

Arduino Serial.write() Serial.println()
p5.js serial.read() Serial.readLine()

3. Bytes And Binary

THIS IS Serial.println:

(Sending binary, output numbers)

Screenshot 2023-10-25 at 10.27.07 AM.png

THIS IS Serial.write

(Sending binary, output ASCII)

Screenshot 2023-10-25 at 10.28.50 AM.png