Hello
I am developing a single program for two sensors, one is "BME680", and other is "BH1749" with thingy-53. But i could not see the output although i have no errors.
&i2c1 {
compatible = "nordic,nrf-twim";
status = "okay";
clock-frequency = <I2C_BITRATE_STANDARD>;
pinctrl-0 = <&i2c1_default>;
pinctrl-1 = <&i2c1_sleep>;
pinctrl-names = "default", "sleep";
bme680: bme680@76 {
compatible = "bosch,bme680";
reg = <0x76>;
label = "BME680";
};
bh1749: bh1749@38 {
compatible = "rohm,bh1749";
label = "BH1749";
reg = <0x38>;
int-gpios = <&gpio1 5 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
};
};
this is overlay file
/*
* Copyright (c) 2012-2014 Wind River Systems, Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/zephyr.h>
#include <zephyr/drivers/sensor.h>
#include <zephyr/drivers/i2c.h>
#define BH1749_SYSTEM_CONTROL 0x40
#define BH1749_MODE_CONTROL1 0x41
#define BH1749_MODE_CONTROL2 0x42
#define BH1749_RED_DATA_LSB 0x50
#define BH1749_IR_DATA_LSB 0x58
#define BH1749_MODE_CONTROL2_RGB_EN_ENABLE BIT(4)
#define BH1749_MODE_CONTROL1_DEFAULTS 0x2A
#define BH_NODE DT_NODELABEL(bh1749)
static const struct i2c_dt_spec bh_i2c = I2C_DT_SPEC_GET(BH_NODE);
uint8_t init_bh1749(void)
{
int ret;
if (!device_is_ready(bh_i2c.bus)) {
printk("I2C bus %s is not ready!\n\r",bh_i2c.bus->name);
return 0;
}
printk("device is %p, name is %s\n", bh_i2c.bus, bh_i2c.bus->name);
char buff1[] = {BH1749_MODE_CONTROL1,BH1749_MODE_CONTROL1_DEFAULTS};
ret = i2c_write_dt(&bh_i2c,buff1,sizeof(buff1));
if(ret != 0){
printk("1- Failed to write to I2C device address 0x%c at Reg. 0x%c\n",bh_i2c.addr,BH1749_MODE_CONTROL1);
}
char buff2[] = {BH1749_MODE_CONTROL2,BH1749_MODE_CONTROL2_RGB_EN_ENABLE};
ret = i2c_write_dt(&bh_i2c,buff2,sizeof(buff2));
if(ret != 0){
printk("2- Failed to write to I2C device address 0x%c at Reg. 0x%c\n",bh_i2c.addr,BH1749_MODE_CONTROL2);
}
return 1;
}
void main(void)
{
int ret;
uint8_t bh_value[10]= {0};
printk("BH1749 Example Thingy:53! %s\n", CONFIG_BOARD);
init_bh1749();
printk("BME68x Example Thingy:53! %s\n", CONFIG_BOARD);
const struct device *bme = DEVICE_DT_GET_ONE(bosch_bme680);
struct sensor_value temp, press, humidity, gas_res;
if (!device_is_ready(bme)) {
printk("sensor: device not ready.\n");
return;
}
printk("Device %p name is %s\n", bme, bme->name);
while (1) {
k_sleep(K_MSEC(1000));
// ret = i2c_burst_read_dt(&bh_i2c, BH1749_RED_DATA_LSB,bh_value,sizeof(bh_value));
// if(ret != 0){
// printk("3-Failed to read to I2C device address 0x%c at Reg. 0x%c\n",bh_i2c.addr,BH1749_RED_DATA_LSB);
// }
// else{
// printk("Red Value:\t %d | ", bh_value[0] | bh_value[1] << 8);
// printk("Green Value:\t %d | ", bh_value[2] | bh_value[3] << 8);
// printk("Blue Value:\t %d | ", bh_value[4] | bh_value[5] << 8);
// printk("IR Value:\t %d\n", bh_value[8] | bh_value[9] << 8);
// }
sensor_sample_fetch(bme);
sensor_channel_get(bme, SENSOR_CHAN_AMBIENT_TEMP, &temp);
sensor_channel_get(bme, SENSOR_CHAN_PRESS, &press);
sensor_channel_get(bme, SENSOR_CHAN_HUMIDITY, &humidity);
sensor_channel_get(bme, SENSOR_CHAN_GAS_RES, &gas_res);
printk("T: %d.%06d | P: %d.%06d | H: %d.%06d | G: %d.%06d\n",
temp.val1, temp.val2, press.val1, press.val2,
humidity.val1, humidity.val2, gas_res.val1,
gas_res.val2);
}
}
this is main.c. Need help please.
Regards
