Project #29 - DFRobot - Gravity Analog Ambient Light Sensor - Mk02

Project #29 - DFRobot - Gravity Analog Ambient Light Sensor - Mk02

 

https://www.donluc.com/?p=3841

 

https://youtu.be/prgifkENSXc

 

#DonLucElectronics #DonLuc #DFRobot #AmbientLight #FireBeetle2ESP32E #ESP32 #IoT #Arduino #Project #Fritzing #Programming #Electronics #Microcontrollers #Consultant

 

 

 

 

Gravity: Analog Ambient Light Sensor

 

This Gravity: Analog ambient light sensor can assist you in detecting light density and provide an analog voltage signal to the controller as feedback. Additionally, you have the ability to trigger other components within your project by setting voltage thresholds. This ambient light sensor is operational within the voltage range of 3.3 to 5 volts.

 

DL2402Mk02

 

1 x DFRobot FireBeetle 2 ESP32-E
1 x Gravity: Analog Ambient Light Sensor
1 x 1 x Lithium Ion Battery - 1000mAh
1 x Rocker Switch - SPST
1 x Resistor 10K Ohm
1 x USB 3.1 Cable A to C

 

DFRobot FireBeetle 2 ESP32-E

 

LED - 2
RSW - 17
ALS - A0
VIN - +3.3V
GND - GND

 

DL2402Mk02p.ino
getAmbientLight.ino
getBleKeyboard.ino
setup.ino

 

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DL2402Mk02p.ino

CODE
/****** Don Luc Electronics © ******
Software Version Information
Project #29 - DFRobot - FireBeetle 2 ESP32-E - Mk02
29-02
DL2402Mk02p.ino
1 x DFRobot FireBeetle 2 ESP32-E
1 x Gravity: Analog Ambient Light Sensor
1 x Rocker Switch - SPST
1 x Resistor 10K Ohm
1 x 1 x Lithium Ion Battery - 1000mAh
1 x USB 3.1 Cable A to C
*/

// Include the Library Code
// Bluetooth LE keyboard
#include <BleKeyboard.h>

// Bluetooth LE Keyboard
BleKeyboard bleKeyboard;
String sKeyboard = "";
// Send Size
byte sendSize = 0;

// Gravity: Analog Ambient Light Sensor
int iAmbientLight = A0;
int iAmbientLightVal = 0;

// The number of the Rocker Switch pin
int iSwitch = 17;
// Variable for reading the button status
int SwitchState = 0;

// Define LED
int iLED = 2;

// Software Version Information
String sver = "29-02";

void loop() {

  // Gravity: Analog Ambient Light Sensor
  isAmbientLight();

  // Read the state of the Switch value:
  SwitchState = digitalRead(iSwitch);

  // Check if the button is pressed. If it is, the SwitchState is HIGH:
  if (SwitchState == HIGH) {

    // Bluetooth LE Keyboard
    isBluetooth();

  }
  
  // Delay 1 Second
  delay(1000);

}

getAmbientLight.ino

CODE
// Gravity: Analog Ambient Light Sensor
// Ambient Light
void isAmbientLight(){

  // Connect Ambient Light Sensor to Analog 0
  iAmbientLightVal = analogRead( iAmbientLight );

  // bleKeyboard
  // DFR|Version|Lux|*
  sKeyboard = "DFR|" + sver + "|" + String(iAmbientLightVal) + "|*";
 
}

getBleKeyboard.ino

CODE
// Ble Keyboard
// Bluetooth
// isBluetooth
void isBluetooth() {

  // ESP32 BLE Keyboard
  if(bleKeyboard.isConnected()) {

    // Send Size Length
    sendSize = sKeyboard.length();

    // Send Size, charAt
    for(byte i = 0; i < sendSize+1; i++){

       // Write
       bleKeyboard.write(sKeyboard.charAt(i));
       delay(50);
    
    }
    bleKeyboard.write(KEY_RETURN);

  }

}

setup.ino

CODE
// Setup
void setup()
{
  
  // Give display time to power on
  delay(100);

  // Bluetooth LE keyboard
  bleKeyboard.begin();

  // Give display time to power on
  delay(100);
  
  // Initialize the Switch pin as an input
  pinMode(iSwitch, INPUT);
  
  // Initialize digital pin iLED as an output
  pinMode(iLED, OUTPUT);
  // Outputting high, the LED turns on
  digitalWrite(iLED, HIGH);

  // Delay 5 Second
  delay( 5000 );

}
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