#define LED_PIN 8
void setup() {
Serial.begin(115200);
Serial.println("Hello, ESP32-C3!");
pinMode(LED_PIN, OUTPUT);
}
void loop() {
digitalWrite(LED_PIN, HIGH);
delay(500);
digitalWrite(LED_PIN, LOW);
delay(500);
}
WHITE : LED SUPER BRIGHT (with pullup Resistor 470 ohm to 5v)
BLUE : PHOTODIODE (with pullup Resistor 10k ohm to 3.3v)
Sensor Wiring
BLACK : GND
YELLOW : S0 (MUX) <-> GPIO3 (ESP32c3)
GRAY: S1 (MUX) <-> GPIO2 (ESP32c3)
BLUE: S2 (MUX) <-> GPIO8 (ESP32c3)
MAGENTA: S3 (MUX) <-> GPIO6 (ESP32c3)
CYAN: SIG (MUX) <-> GPIO4 (ESP32c3)
ORANGE: VCC (MUX) <-> 3.3v (ESP32c3)
RED : 5v