The ESP-WROOM-32 is a low-power communication module that combines Wi-Fi and Bluetooth. It has an appearance similar to the NodeMCU, and the specification is as follows.
There is the pin out of ESP-WROOM-32.
You can add it by using the unofficial board URL for use in the Arduino IDE environment, and install it in the board manager.
int pinNum = 34;
int distance = 0;
void setup()
{
Serial.begin(9600);
pinMode (pinNum, INPUT);
}
void loop()
{
int data = analogRead(pinNum);
int volt = map(data, 0, 1023, 0, 5000);
distance = 27/(volt-0.17)*1000;
Serial.println(distance);
delay(50);
}
Leave a Reply
You must be logged in to post a comment.