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create library and make two examples of usage

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Edward Emelianov
2025-10-14 00:17:07 +03:00
parent 7a37dc0d2f
commit ea0de3c904
20 changed files with 499 additions and 149 deletions
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I2Csensors/i2csensorsPTH.h Normal file
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/*
* Copyright 2025 Edward V. Emelianov <edward.emelianoff@gmail.com>.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <stdint.h>
// timeout of i2c waiting
#define I2C_TIMEOUT (.5)
typedef enum{
SENS_NOTINIT, // wasn't inited
SENS_BUSY, // measurement in progress
SENS_ERR, // error occured
SENS_RELAX, // do nothing
SENS_RDY, // data ready - can get it
} sensor_status_t;
typedef union{
struct{
uint8_t T : 1; // can temperature (degC)
uint8_t H : 1; // can humidity (percent)
uint8_t P : 1; // can pressure (hPa)
uint8_t htr : 1; // have heater
};
uint32_t flags;
} sensor_props_t;
typedef struct{
double T;
double H;
double P;
} sensor_data_t;
//struct sensor_struct;
typedef struct sensor_struct sensor_t;
int sensors_open(const char *dev);
void sensors_close();
char *sensors_list();
sensor_t* sensor_new(const char *name);
void sensor_delete(sensor_t **s);
sensor_props_t sensor_properties(sensor_t *s);
int sensor_init(sensor_t *s, uint8_t address);
int sensor_heater(sensor_t *s, int on);
int sensor_start(sensor_t *s);
sensor_status_t sensor_process(sensor_t *s);
int sensor_getdata(sensor_t *s, sensor_data_t *d);
// I2C functions for client usage
int sensor_writeI2C(uint8_t addr, uint8_t *data, int len);
int sensor_readI2C(uint8_t addr, uint8_t *data, int len);
int sensor_readI2Cregs(uint8_t addr, uint8_t regaddr, uint16_t N, uint8_t *data);
int sensor_writeI2Creg(uint8_t addr, uint8_t regaddr, uint8_t data);