Sensor Reading + Display (Arduino + Processing）
Create a simple signle-channel controller that would allow you to change one parameter in a Processing program by applying a value received from ESP32 via serial communication. You can use any sensor to generate that value - except a potentiometer.
I created a bus and a wall in Processing software. There is a number that is the distance between the bus and the wall. For the hardware part, I planed to use distance sensor to represent the distance between the bus and the wall. When my hand close to the sensor, the bus will close to the wall.
-Ultrasonic Module HC-SR04 Distance Sensor
-Arduino Uno REV3
-Breadboard wires M-F
- When I connect the Ultrasonic Distance Sensor to the ESP32, it doesn't work.
- Processing can not connect with the Arduino
- Change ESP32 to Arduino UNO because Ultrasonic Distance Sensor only supported by 5V.
- The serial port name is wrong, so I use Terminal to determine serial port names in Mac OS X.