Example Code for Arduino-Voltage Output
In this example, we will Demonstrates the variation of output voltage for the same input signal in two different states. Input signal value range: 0-255 - In the state of 0-5V: Input value of 176, resulting in an output voltage of 3.45V. - In the state of 0-10V: Input value of 176, resulting in an output voltage of 6.90V.
Hardware Preparation
| Name | Model/SKU | Quantity | Purchase Link |
|---|---|---|---|
| DFR1036 Gravity: GP8101S 1-Channel PWM to 0-5V/10V DAC Module | DFR1036 | 1 | Product Link |
| DFRobot arduino uno r3 | DFR0216 | 1 | Product Link |
Software Preparation
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Download Arduino IDE： Click to download Arduino IDE
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Download Arduino libraries： Click to download https://github.com/DFRobot/DFRobot_GP8XXX
Click the link to view：How to install the library?;
Wiring Diagram
Sample Code
#include <DFRobot_GP8XXX.h>
//Output IO Port
int pwmPin = 9;
DFRobot_GP8101S GP8101S(pwmPin);
void setup() {
GP8101S.begin();
/**
* @brief. Set the output DAC value.
* @param data pwm
* @n. Optional parameters (0-255) correspond to voltage ranges of (0-5V) or (0-10V), and the specific voltage range is determined by the fluctuation switch selected based on the module voltage.
*/
GP8101S.setDACOutVoltage(176);//Output voltage of 3.45V under the 0-5V state and 6.90V under the 0-10V state.
}
void loop() {
}
Result
After downloading the program, the voltmeter was used to measure the actual output voltage of 3.45V under the 0-5V state and 6.90V under the 0-10V state.
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