56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/*
|
|
* ads1115.c:
|
|
* Extend wiringPi with the ADS1115 I2C 16-bit ADC
|
|
* Copyright (c) 2016 Gordon Henderson
|
|
***********************************************************************
|
|
* This file is part of wiringPi:
|
|
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
|
*
|
|
* wiringPi 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 3 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* wiringPi 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 wiringPi.
|
|
* If not, see <http://www.gnu.org/licenses/>.
|
|
***********************************************************************
|
|
*/
|
|
|
|
// Constants for some of the internal functions
|
|
|
|
// Gain
|
|
|
|
#define ADS1115_GAIN_6 0
|
|
#define ADS1115_GAIN_4 1
|
|
#define ADS1115_GAIN_2 2
|
|
#define ADS1115_GAIN_1 3
|
|
#define ADS1115_GAIN_HALF 4
|
|
#define ADS1115_GAIN_QUARTER 5
|
|
|
|
// Data rate
|
|
|
|
#define ADS1115_DR_8 0
|
|
#define ADS1115_DR_16 1
|
|
#define ADS1115_DR_32 2
|
|
#define ADS1115_DR_64 3
|
|
#define ADS1115_DR_128 4
|
|
#define ADS1115_DR_250 5
|
|
#define ADS1115_DR_475 6
|
|
#define ADS1115_DR_860 7
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
extern int ads1115Setup (int pinBase, int i2cAddress) ;
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|