Core2ForAWS_Port_B_DAC_WriteMilliVolts

esp_err_t Core2ForAWS_Port_B_DAC_WriteMilliVolts(uint16_t mvolts);

Outputs the specified voltage (millivolts) to the DAC.

Note

pin_mode_t for PORT_B_DAC_PIN must be set to DAC before using Core2ForAWS_Port_B_DAC_WriteMilliVolts.

This function accepts a range from 0 to a maximum of VDD3P3_RTC (~3300mV).

The example code sets the PORT_B_DAC_PIN (GPIO 26) pin mode to DAC and outputs 1,500mV.

Example:

#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_log.h"
 
#include "core2forAWS.h"
 
void app_main(void){
    Core2ForAWS_Init();
    Core2ForAWS_Port_PinMode(PORT_B_DAC_PIN, DAC);
    Core2ForAWS_Port_B_DAC_WriteMilliVolts(1500);
}

Parameters

[in]

mvolts

The voltage level to set the DAC pin in millivolts.

Returns

esp_err_t. 0 or ESP_OK if successful.