[arduino code examples for A6v3]-09 Dimmer analog output by GP8403

Code:

/*

 * Made by KinCony IoT: https://www.kincony.com

 *

 * This Arduino program controls the GP8403 DAC I2C chip using an ESP32-S3 board. 

 * The program sets the DAC outputs for two channels:

 * - Channel 0 (CH0) outputs 5V.

 * - Channel 1 (CH1) outputs 10V.

 *

 * The I2C communication is handled using the Wire library, and the SDA and SCL pins 

 * are custom defined as GPIO12 (SDA) and GPIO11 (SCL).

 *

 * GP8403 I2C address: 0x58

 */



#include "DFRobot_GP8403.h"



// Initialize the GP8403 DAC object with the I2C address 0x58

DFRobot_GP8403 dac(&Wire, 0x58);



void setup() {

  // Start serial communication for debugging purposes

  Serial.begin(115200);



  // Initialize I2C communication with custom SDA and SCL pins

  Wire.begin(12, 11);  // SDA = GPIO12, SCL = GPIO11



  // Try to initialize the DAC, retry if initialization fails

  while(dac.begin() != 0) {

    Serial.println("Initialization failed, retrying...");

    delay(1000);  // Wait for 1 second before retrying

  }



  // If initialization succeeds

  Serial.println("Initialization successful!");



  // Set the DAC output range to 10V (this setting applies to both channels)

  dac.setDACOutRange(dac.eOutputRange10V);



  // Set the output for DAC channel 0 to 5V

  // Range for 10V mode is 0-10000, so 5000 represents 5V

  dac.setDACOutVoltage(5000, 0);  // Set CH0 to 5V

  Serial.println("Channel 0 set to 5V");



  // Set the output for DAC channel 1 to 10V

  dac.setDACOutVoltage(10000, 1);  // Set CH1 to 10V

  Serial.println("Channel 1 set to 10V");



  // Store the data in the chip's non-volatile memory so it persists after power-off

  dac.store();

  Serial.println("DAC values stored in memory");

}



void loop() {

  // No need to continuously write the values, the DAC holds the last set value

}

Code:

/*!

  * @file GP8403outputData.ino

  * @brief Set the output channel, voltage value, and range to convert the I2C signal into two channels of analog voltage signals ranging from 0-5V or 0-10V.

  * @copyright   Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com)

  * @license     The MIT License (MIT)

  * @author      [Baikunlin](kunlin.bai@dfrobot.com)

  * @version  V1.0

  * @date  2023-05-24

  * @url https://github.com/DFRobot/DFRobot_GP8XXX

  */



#include <DFRobot_GP8XXX.h>

/**************************

----------------------------

| A2 |  A1 | A0 | i2c_addr |

----------------------------

| 0  |  0  | 0  |   0x58   |

----------------------------

| 0  |  0  | 1  |   0x59   |

----------------------------

| 0  |  1  | 0  |   0x5A   |

----------------------------

| 0  |  1  | 1  |   0x5B   |

----------------------------

| 1  |  0  | 0  |   0x5C   |

----------------------------

| 1  |  0  | 1  |   0x5D   |

----------------------------

| 1  |  1  | 0  |   0x5E   |

----------------------------

| 1  |  1  | 1  |   0x5F   |

----------------------------

***************************/

DFRobot_GP8403 GP8403(/*deviceAddr=*/0x58);



// Define custom I2C pins

#define I2C_SDA 12

#define I2C_SCL 11



void setup() {



  

  Serial.begin(9600);



  // Initialize I2C bus with custom SDA and SCL

  Wire.begin(I2C_SDA, I2C_SCL);



  while(GP8403.begin()!=0){

    Serial.println("Communication with the device failed. Please check if the connection is correct or if the device address is set correctly.");

    delay(1000);

  }



  /**

   * @brief Set the DAC output range.

   * @param range DAC output range.

   * @n     eOutputRange5V(0-5V)

   * @n     eOutputRange10V(0-10V)

   */    

  GP8403.setDACOutRange(GP8403.eOutputRange10V);



  /**

   * @brief Set different channel outputs for the DAC values.

   * @param data Data values corresponding to voltage levels.

   * @n With a 12-bit precision DAC module, the data values ranging from 0 to 4095 correspond to voltage ranges of 0-5V or 0-10V, respectively.

   * @param channel Output channels.

   * @n  0:Channel 0.

   * @n  1:Channel 1.

   * @n  2:All channels.

   */  

  GP8403.setDACOutVoltage(2048,0);  //DAC2 ouptut 5v 

  GP8403.setDACOutVoltage(4095,1);  //DAC1 output 10v



  delay(1000);



  //Save the set voltage in the chip's internal memory for power loss recovery.

  //GP8403.store();

}



void loop() {



}