Connecting the second sensor
Last updated on 2023-04-10 | Edit this page
Estimated time: 12 minutes
Overview
Questions
- Question
Objectives
- Objective
Connecting a light level sensor
ToDo
Explain how to connect the resistors according to image below
C
#define LIGHT_SENSOR_PIN 32 // ESP32 pin GIOP36 (ADC0)
const int readingdelay = 3000;
void setup() {
Serial.begin(9600); // initialize serial
Serial.println(F("Starting ..."));
}
void loop() {
int lightlevel = analogRead(LIGHT_SENSOR_PIN); // read light level
Serial.print("Light: ");
Serial.println(lightlevel);
// wait a 3 seconds between readings
delay(readingdelay);
}
Explanation of the code
Key Points
- Keypoint