BMI160 significant motion problem

[Marta]

Hi,

thanks for your response! It works now!

Marta

[j_marijan]

1. Yes. I am using version before commit(a23022cc3208fe367d886c65df2f025e80203037).

2. Configuration sequence is:

• sig_mot_proof -> 1=0.48s
• sig_mot_skip -> 1=2.56s
• sig_mot_threshold -> 10

3. I would.

4. I can do that, but every time I made a call of function bmi160_set_int_config with given parameters, BMI_OK result was returned every time. 

5. I read that in datasheet and I am aware of that fact. But, sometimes no matter what you do with device, interrupt is never triggered.

Looking forward to your answer.

[j_marijan]

Any update on this topic?

Regards,
Josip

[femonsalvez]

Hi! I'm having problems with the first part:

• Initialize sensor through bmi160_init

I'm using a gy-bmi160 like this https://es.banggood.com/GY-BMI160-Module-6DOF-6-Axis-Angular-Velocity-Gyroscope-Gravity-Acceleration...

I've tried to turn on a LED with the INT1 interrupt but I'm getting the 'Failure' message indicating the init went wrong. This is programmed into a ESP32 using SPI interface.

Here's my code:

#include "bmi160.h
void setup() {
int8_t rslt;
Serial.begin(19200);
pinMode(26,INPUT);
pinMode(25,OUTPUT);
struct bmi160_int_settg int_config;
struct bmi160_dev sensor;
//Init Modo SPI
sensor.id = 0;
sensor.interface = BMI160_SPI_INTF;
rslt = bmi160_init(&sensor);

if(rslt==BMI160_OK){
    Serial.println("Success");
}else{
     Serial.println("Failure");
}
delay(1000);

//Rango acc 2g, low power, 50HZ
sensor.accel_cfg.range = BMI160_ACCEL_RANGE_2G;
sensor.accel_cfg.odr = BMI160_ACCEL_ODR_50HZ;
sensor.accel_cfg.power = BMI160_ACCEL_PMU_LOW_POWER;
delay(5);

/* Interrupcion INT1 */
int_config.int_channel = BMI160_INT_CHANNEL_1;

int_config.int_type = BMI160_ACC_ANY_MOTION_INT;// Choosing Any motion interrupt
/* Select the interrupt channel/pin settings */
int_config.int_pin_settg.output_en = BMI160_ENABLE;// Enabling interrupt pins to act as output pin
int_config.int_pin_settg.output_mode = BMI160_DISABLE;// Choosing push-pull mode for interrupt pin
int_config.int_pin_settg.output_type = BMI160_DISABLE;// Choosing active low output
int_config.int_pin_settg.edge_ctrl = BMI160_ENABLE;// Choosing edge triggered output
int_config.int_pin_settg.input_en = BMI160_DISABLE;// Disabling interrupt pin to act as input
int_config.int_pin_settg.latch_dur = BMI160_LATCH_DUR_NONE;// non-latched output

/* Select the Any-motion interrupt parameters */
int_config.int_type_cfg.acc_any_motion_int.anymotion_en = BMI160_ENABLE;// 1- Enable the any-motion, 0- disable any-motion
int_config.int_type_cfg.acc_any_motion_int.anymotion_x = BMI160_ENABLE;// Enabling x-axis for any motion interrupt
int_config.int_type_cfg.acc_any_motion_int.anymotion_y = BMI160_ENABLE;// Enabling y-axis for any motion interrupt
int_config.int_type_cfg.acc_any_motion_int.anymotion_z = BMI160_ENABLE;// Enabling z-axis for any motion interrupt
int_config.int_type_cfg.acc_any_motion_int.anymotion_dur = 0;// any-motion duration
int_config.int_type_cfg.acc_any_motion_int.anymotion_thr = 2;// (2-g range) -> (slope_thr) * 3.91 mg, (4-g range) -> (slope_thr) * 7.81 mg, (8-g range) ->(slope_thr) * 15.63 mg, (16-g range) -> (slope_thr) * 31.25 mg

/* Set the Any-motion interrupt */
bmi160_set_int_config(&int_config, &sensor); /* sensor is an instance of the structure bmi160_dev */

}

void loop() {
Serial.println(digitalRead(26));
if(digitalRead(26)==1){
digitalWrite(25,HIGH);
Serial.println("Activated");
delay(500);
digitalWrite(25,LOW);
}
}