Hello everyone! :)
I'm having trouble detecting the sht85 sensor using the nrf9151dk. The wiring is good, since I tried connecting the sensor to the Arduino Uno and it works without a problem, however, with the nrf the sensor address is not detected at all.
I tried the same implementation for the bmp180 sensor, and the nrf detected it correctly and was able to get the measurement data.
I leave you my .overlay file as well as a simple main which tries to scan the addresses.
Thanks!
&i2c2 {
compatible = "nordic,nrf-twim";
status = "okay";
clock-frequency = <I2C_BITRATE_STANDARD>;
sht85: sht85@44 {
compatible = "i2c-device";
reg = < 0x44 >;
label = "SHT85";
};
};
#include <zephyr/kernel.h>
#include "sensors/bmp180/bmp180.h"
#include <zephyr/logging/log.h>
#include "sensors/sht85/sht85.h"
LOG_MODULE_REGISTER(MAIN, LOG_LEVEL_INF);
#define I2C_NODE DT_NODELABEL(sht85)static void i2c_scan(const struct device *dev) {
for (uint8_t i = 1; i < 127; i++) {
uint8_t tx_buffer = 0;
int ret = i2c_write(dev, &tx_buffer, sizeof(tx_buffer), i);
if (ret == 0) {
printk("I2C device found at address 0x%02X\n", i);
}
}
}
int main(void) {
static const struct i2c_dt_spec dev_i2c = I2C_DT_SPEC_GET(I2C_NODE);
// const struct device *i2c_dev = DEVICE_DT_GET(DT_NODELABEL(i2c2));
if (!device_is_ready(dev_i2c.bus)) {
printk("I2C bus %s is not ready!\n", dev_i2c.bus->name);
return -1;
}
i2c_scan(dev_i2c.bus);
return 1;
}
