Example Code for Arduino-Voltage Output Configuration

Software Preparation

• Download Arduino IDE： Click to download Arduino IDE

• Download Arduino libraries： Click to download https://github.com/DFRobot/DFRobot_GP8XXX

  Click the link to view：How to install the library?;

All modules in this series utilize the same library.**

Wiring Diagram

Sample Code

#include <DFRobot_GP8XXX.h>
/**************************
----------------------------
| A0 |  A1 | A2 | i2c_addr |
----------------------------
| 0  |  0  | 0  |   0x58   |
----------------------------
| 1  |  0  | 0  |   0x59   |
----------------------------
| 0  |  1  | 0  |   0x5A   |
----------------------------
| 1  |  1  | 0  |   0x5B   |
----------------------------
| 0  |  0  | 1  |   0x5C   |
----------------------------
| 1  |  0  | 1  |   0x5D   |
----------------------------
| 0  |  1  | 1  |   0x5E   |
----------------------------
| 1  |  1  | 1  |   0x5F   |
----------------------------
***************************/
DFRobot_GP8413 GP8413(/*deviceAddr=*/0x58);

void setup() {

  Serial.begin(9600);

  while(GP8413.begin()!=0){
    Serial.println("Communication with the device has encountered a failure. Please verify the integrity of the connection or ensure that the device address is properly configured.");
    delay(1000);
  }

  /**
   * @brief. Setting the range of DAC output.
   * @param range. the range of DAC output.
   * @n     eOutputRange5V(0-5V)
   * @n     eOutputRange10V(0-10V)
   */
  GP8413.setDACOutRange(GP8413.eOutputRange10V);

  /**
   * @brief. Configuring different channel outputs for DAC values
   * @param data. Data values corresponding to voltage values
   * @n （0 - 32767）.This module is a 15-bit precision DAC module, hence the values ranging from 0 to 32767 correspond to voltages of 0-5V or 0-10V respectively. The specific voltage range depends on the selection of the module's voltage fluctuation switch.
   * @param channel. Output channels
   * @n  0:channel 0
   * @n  1:channel 1
   * @n  2:All channels
   */
  GP8413.setDACOutVoltage(21457,0);//channel 0 output 6.548V
  GP8413.setDACOutVoltage(3210,1);//channel 1 output 0.979V

  delay(1000);

  //The set voltage is saved internally in the chip for power-off retention.
  //GP8413.store();
}

void loop() {

}

Result

After downloading the program, the actual output voltage of channel 0 was measured as 6.548V, while the output voltage of channel 1 was measured as 0.979V using a voltmeter.