105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
|
/*
|
||
|
|
Arduino.h - Main include file for the Arduino SDK
|
||
|
|
Copyright (c) 2005-2013 Arduino Team. All right reserved.
|
||
|
|
|
||
|
|
This library is free software; you can redistribute it and/or
|
||
|
|
modify it under the terms of the GNU Lesser General Public
|
||
|
|
License as published by the Free Software Foundation; either
|
||
|
|
version 2.1 of the License, or (at your option) any later version.
|
||
|
|
|
||
|
|
This library is distributed in the hope that it will be useful,
|
||
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
Lesser General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU Lesser General Public
|
||
|
|
License along with this library; if not, write to the Free Software
|
||
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef MAIN_ESP32_HAL_ADC_H_
|
||
|
|
#define MAIN_ESP32_HAL_ADC_H_
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include "esp32-hal.h"
|
||
|
|
|
||
|
|
typedef enum {
|
||
|
|
ADC_0db,
|
||
|
|
ADC_2_5db,
|
||
|
|
ADC_6db,
|
||
|
|
ADC_11db,
|
||
|
|
ADC_ATTENDB_MAX
|
||
|
|
} adc_attenuation_t;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Get ADC value for pin
|
||
|
|
* */
|
||
|
|
uint16_t analogRead(uint8_t pin);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Get MilliVolts value for pin
|
||
|
|
* */
|
||
|
|
uint32_t analogReadMilliVolts(uint8_t pin);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Set the resolution of analogRead return values. Default is 12 bits (range from 0 to 4096).
|
||
|
|
* If between 9 and 12, it will equal the set hardware resolution, else value will be shifted.
|
||
|
|
* Range is 1 - 16
|
||
|
|
*
|
||
|
|
* Note: compatibility with Arduino SAM
|
||
|
|
*/
|
||
|
|
void analogReadResolution(uint8_t bits);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Set the divider for the ADC clock.
|
||
|
|
* Default is 1
|
||
|
|
* Range is 1 - 255
|
||
|
|
* */
|
||
|
|
void analogSetClockDiv(uint8_t clockDiv);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Set the attenuation for all channels
|
||
|
|
* Default is 11db
|
||
|
|
* */
|
||
|
|
void analogSetAttenuation(adc_attenuation_t attenuation);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Set the attenuation for particular pin
|
||
|
|
* Default is 11db
|
||
|
|
* */
|
||
|
|
void analogSetPinAttenuation(uint8_t pin, adc_attenuation_t attenuation);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Attach pin to ADC (will also clear any other analog mode that could be on)
|
||
|
|
* */
|
||
|
|
bool adcAttachPin(uint8_t pin);
|
||
|
|
|
||
|
|
#if CONFIG_IDF_TARGET_ESP32
|
||
|
|
/*
|
||
|
|
* Sets the sample bits and read resolution
|
||
|
|
* Default is 12bit (0 - 4095)
|
||
|
|
* Range is 9 - 12
|
||
|
|
* */
|
||
|
|
void analogSetWidth(uint8_t bits);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Set pin to use for ADC calibration if the esp is not already calibrated (25, 26 or 27)
|
||
|
|
* */
|
||
|
|
void analogSetVRefPin(uint8_t pin);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Get value for HALL sensor (without LNA)
|
||
|
|
* connected to pins 36(SVP) and 39(SVN)
|
||
|
|
* */
|
||
|
|
int hallRead();
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* MAIN_ESP32_HAL_ADC_H_ */
|