PMT_With_ESP32/Arduino

float PMT_raw {0.0f};
float PMT_V {0.0f};
float PMT_mV {0.0f};
const uint8_t Vcont=15; //control voltage ?硫?/// gain  provided to pin 15 of esp32
float Gain {0.0f};

//pwm setting area
const int freq = 5000;
const uint8_t pwmChannel = 0;
const uint8_t pwmResolution = 8;  // 8-bit resolution (0-255)

void setup()
{
  Serial.begin(9600);
  ledcSetup(pwmChannel, 5000, pwmResolution);  // 5 kHz frequency

  // Attach the PWM channel to the GPIO pin
  ledcAttachPin(15, pwmChannel);

  Gain=255*0.16f; //Gain 夜??쑣€????쀪텢 ???쑣€?룹?釉?/?쑣€??
ledcWrite(pwmChannel,Gain );

}
void loop() {
  //-----------PMT夜???꾪€???????怨쀬쟿------------
  PMT_raw=analogRead(32);
  PMT_V=PMT_raw/4095*3.3f;
  PMT_mV=PMT_V*1000.0f;

Serial.println(PMT_mV);

}