36 lines
899 B
C
36 lines
899 B
C
/* ADC1 Example
|
|
|
|
This example code is in the Public Domain (or CC0 licensed, at your option.)
|
|
|
|
Unless required by applicable law or agreed to in writing, this
|
|
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
|
CONDITIONS OF ANY KIND, either express or implied.
|
|
*/
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include "freertos/FreeRTOS.h"
|
|
#include "freertos/task.h"
|
|
#include "freertos/queue.h"
|
|
#include "driver/gpio.h"
|
|
#include "driver/adc.h"
|
|
|
|
#define ADC1_TEST_CHANNEL (4)
|
|
|
|
void adc1task(void* arg)
|
|
{
|
|
// initialize ADC
|
|
adc1_config_width(ADC_WIDTH_12Bit);
|
|
adc1_config_channel_atten(ADC1_TEST_CHANNEL,ADC_ATTEN_11db);
|
|
while(1){
|
|
printf("The adc1 value:%d\n",adc1_get_voltage(ADC1_TEST_CHANNEL));
|
|
vTaskDelay(1000/portTICK_PERIOD_MS);
|
|
}
|
|
}
|
|
|
|
void app_main()
|
|
{
|
|
xTaskCreate(adc1task, "adc1task", 1024*3, NULL, 10, NULL);
|
|
}
|
|
|