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Add CCS811 driver

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This commit is contained in:
Pim van Pelt
2018-04-10 21:36:10 +02:00
parent d2e64c0f45
commit e4bb9e39cc
4 changed files with 490 additions and 45 deletions
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121
src/main.c
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@ -20,103 +20,124 @@
#include "mgos_si7021.h"
#include "mgos_htu21df.h"
#include "mgos_mcp9808.h"
#include "mgos_ccs811.h"
#include <fcntl.h>
#include <sys/ioctl.h>
#define I2CBUSNR 5
#define I2CBUSNR 5
void i2c_scanner(struct mgos_i2c *i2c) {
int i;
if (!i2c) {
LOG(LL_ERROR, ("No global I2C bus configured"));
return;
}
for(i=0x3; i<0x77; i++) {
for (i = 0x3; i < 0x77; i++) {
bool ret;
ret=mgos_i2c_read(i2c, i, NULL, 0, true);
if (ret)
LOG(LL_INFO, ("I2C Address 0x%02x %s", i, ret?"true":"false"));
ret = mgos_i2c_read(i2c, i, NULL, 0, true);
if (ret) {
LOG(LL_INFO, ("I2C Address 0x%02x %s", i, ret ? "true" : "false"));
}
}
}
bool i2c_dumpregs(struct mgos_i2c *i2c, uint8_t i2caddr) {
uint16_t reg;
int value;
int value;
for(reg=0; reg<256; reg++) {
value=mgos_i2c_read_reg_b(i2c, i2caddr, reg);
if (value<0) {
for (reg = 0; reg < 256; reg++) {
value = mgos_i2c_read_reg_b(i2c, i2caddr, reg);
if (value < 0) {
printf(" XX");
}
else {
}else {
printf(" %02x", value);
}
if (reg%16==15) printf("\n");
if (reg % 16 == 15) {
printf("\n");
}
}
printf("\n");
return true;
}
bool do_ccs811(struct mgos_ccs811 *sensor) {
float eco2, tvoc;
if (!sensor) {
return false;
}
eco2 = mgos_ccs811_get_eco2(sensor);
tvoc = mgos_ccs811_get_tvoc(sensor);
LOG(LL_INFO, ("eCO2=%.0fppm TVOC=%.0fppb", eco2, tvoc));
return true;
}
bool do_sht31(struct mgos_sht31 *sensor) {
float temp, humid;
if (!sensor) return false;
if (!sensor) {
return false;
}
temp=mgos_sht31_getTemperature(sensor);
humid=mgos_sht31_getHumidity(sensor);
temp = mgos_sht31_getTemperature(sensor);
humid = mgos_sht31_getHumidity(sensor);
LOG(LL_INFO, ("temperature=%.2fC humidity=%.1f%%", temp, humid));
return true;
}
bool do_si7021(struct mgos_si7021 *sensor) {
float temp, humid;
if (!sensor) return false;
if (!sensor) {
return false;
}
temp=mgos_si7021_getTemperature(sensor);
humid=mgos_si7021_getHumidity(sensor);
temp = mgos_si7021_getTemperature(sensor);
humid = mgos_si7021_getHumidity(sensor);
LOG(LL_INFO, ("temperature=%.2fC humidity=%.1f%%", temp, humid));
return true;
}
bool do_htu21df(struct mgos_htu21df *sensor) {
float temp, humid;
if (!sensor) return false;
if (!sensor) {
return false;
}
temp=mgos_htu21df_getTemperature(sensor);
humid=mgos_htu21df_getHumidity(sensor);
temp = mgos_htu21df_getTemperature(sensor);
humid = mgos_htu21df_getHumidity(sensor);
LOG(LL_INFO, ("temperature=%.2fC humidity=%.1f%%", temp, humid));
return true;
}
bool do_mcp9808(struct mgos_mcp9808 *sensor) {
float temp;
if (!sensor) return false;
if (!sensor) {
return false;
}
temp=mgos_mcp9808_getTemperature(sensor);
temp = mgos_mcp9808_getTemperature(sensor);
LOG(LL_INFO, ("temperature=%.2fC", temp));
return true;
}
int main() {
struct mgos_i2c *i2c;
struct mgos_si7021 *si7021;
struct mgos_sht31 *sht31;
struct mgos_i2c * i2c;
struct mgos_si7021 * si7021;
struct mgos_sht31 * sht31;
struct mgos_htu21df *htu21df;
struct mgos_mcp9808 *mcp9808;
struct mgos_ccs811 * ccs811;
if (!mgos_i2c_open(I2CBUSNR)) {
LOG(LL_ERROR, ("Cannot open I2C bus %u", I2CBUSNR));
@ -129,23 +150,32 @@ int main() {
i2c_scanner(i2c);
if (!(sht31 = mgos_sht31_create(i2c, 0x44)))
LOG(LL_ERROR, ("Cannot create SHT31 device"));
/*
* if (!(sht31 = mgos_sht31_create(i2c, 0x44)))
* LOG(LL_ERROR, ("Cannot create SHT31 device"));
*
* if (!(si7021 = mgos_si7021_create(i2c, 0x40)))
* LOG(LL_ERROR, ("Cannot create SI7021 device"));
*
* if (!(htu21df = mgos_htu21df_create(i2c, 0x40)))
* LOG(LL_ERROR, ("Cannot create HTU21DF device"));
*
* if (!(mcp9808 = mgos_mcp9808_create(i2c, 0x18)))
* LOG(LL_ERROR, ("Cannot create MCP9808 device"));
*/
if (!(si7021 = mgos_si7021_create(i2c, 0x40)))
LOG(LL_ERROR, ("Cannot create SI7021 device"));
if (!(htu21df = mgos_htu21df_create(i2c, 0x40)))
LOG(LL_ERROR, ("Cannot create HTU21DF device"));
if (!(mcp9808 = mgos_mcp9808_create(i2c, 0x18)))
LOG(LL_ERROR, ("Cannot create MCP9808 device"));
if (!(ccs811 = mgos_ccs811_create(i2c, 0x5A))) {
LOG(LL_ERROR, ("Cannot create CCS811 device"));
}
for (;;) {
do_sht31(sht31);
do_si7021(si7021);
do_htu21df(htu21df);
do_mcp9808(mcp9808);
/*
* do_sht31(sht31);
* do_si7021(si7021);
* do_htu21df(htu21df);
* do_mcp9808(mcp9808);
*/
do_ccs811(ccs811);
sleep(5);
}
@ -153,6 +183,7 @@ int main() {
mgos_si7021_destroy(&si7021);
mgos_htu21df_destroy(&htu21df);
mgos_mcp9808_destroy(&mcp9808);
mgos_ccs811_destroy(&ccs811);
return 0;
}