EnviroDIY

2022-07-10 at 5:52 AM #17145

Participant

Hi all, I own a SP-110 Apogee sensor. I am working the sensor with DOIT ESP32 Devkit Board V1. Could anyone please check the code and see if the code is done correctly? Do I need to include any library in the code? Thanks in advance. Rgds, Storm

/*  code read Apogee SP-110 Solar Radiation Sensor output to the serial terminal.
 *  RED wire: Data line, connect to ESP32 Devkit Board (30 Pin) ADC pin (pin 4)
 *  WHITE and CLEAR/BARE wire: Connected to GND
 */

const int Analog_pin = 4;
int sensorValue = 0;
float voltage = 0;

void setup() {
  Serial.begin(115200);

}

void loop() {
  
  sensorValue = analogRead(Analog_pin); // change this to the correct analog pin you're using
  voltage = (sensorValue * 3.3) / (4095.0); //convert bits to volts (12 bits)
  //ESP32 ADC bit can be (9 bits/10 bits/11 bits/12bits), 
  //if the ESP32 ADC bit is not been configure then usually is in 12 bits 
  float ShortwaveRadiation = voltage * 5.0; //Apogee SP-110 has calibrated output of 5.0 W/m2 per mV
  Serial.print ("Voltage: "); Serial.println(voltage); Serial.print(" mV;   \n");
  Serial.print ("Shortwave Radiation: "); Serial.println(ShortwaveRadiation); Serial.print(" W/m2\n");
  delay(1000);

}

/* code read Apogee SP-110 Solar Radiation Sensor output to the serial terminal.

* RED wire: Data line, connect to ESP32 Devkit Board (30 Pin) ADC pin (pin 4)

* WHITE and CLEAR/BARE wire: Connected to GND

const int Analog_pin = 4;

int sensorValue = 0;

float voltage = 0;

void setup() {

Serial.begin(115200);

}

void loop() {

sensorValue = analogRead(Analog_pin); // change this to the correct analog pin you're using

voltage = (sensorValue * 3.3) / (4095.0); //convert bits to volts (12 bits)

//ESP32 ADC bit can be (9 bits/10 bits/11 bits/12bits),

//if the ESP32 ADC bit is not been configure then usually is in 12 bits

float ShortwaveRadiation = voltage * 5.0; //Apogee SP-110 has calibrated output of 5.0 W/m2 per mV

Serial.print ("Voltage: "); Serial.println(voltage); Serial.print(" mV; \n");

Serial.print ("Shortwave Radiation: "); Serial.println(ShortwaveRadiation); Serial.print(" W/m2\n");

delay(1000);

}