Hexiwear
Simple accelerometer and magnetometer program example for Hexiwear featuring UART
Dependencies: FXOS8700
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Hexi_Accelero_Magneto_Example
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Hexiwear
This project demonstrates the use of the FXOS8700CQ combo Accelerometer and Magnetometer sensor embedded in hexiwear
Open a Hyperterminal tool on your computer and connect it to the "mbed Serial port (COMxx)" with Baud rate "9600bps"
Compile the project and copy the binary "Hexi_Accelero_Magneto_Example_HEXIWEAR.bin" in the DAP-LINK drive from your computer file explorer Press the K64F-RESET button on the docking station to start the program on your board
Message "Begin Data Acquisition from FXOS8700CQ sensor..." will appear in the Hyperterminal window
Then every 500ms the value of the Accelerometer and the Magnetometer for the Axis X, Y and Z plus their RMS value will be displayed in the Hyperterminal window and the LED will blink Green
Diff: main.cpp
- Revision:
- 2:f9c24c129575
- Parent:
- 1:6da908234299
- Child:
- 3:9f60cb7455c4
--- a/main.cpp Sat Aug 13 15:59:34 2016 +0000
+++ b/main.cpp Mon Aug 15 23:22:48 2016 +0000
@@ -1,31 +1,46 @@
#include "mbed.h"
-#include "FXOS8700CQ.h"
+#include "FXOS8700.h"
-/* Check out the full featured example application for interfacing to the
- * Accelerometer/Magnetometer device at the following URL
- * https://developer.mbed.org/users/trm/code/fxos8700cq_example/
-*/
+// Check out the full featured example application for interfacing to the
+// Accelerometer/Magnetometer device at the following URL
+// https://developer.mbed.org/users/trm/code/fxos8700cq_example/
-DigitalOut led1(LED1);
+DigitalOut led1(LED_GREEN);
+
+// Initialize Serial port
+Serial pc(USBTX, USBRX);
// Pin connections & address for Hexiwear
-FXOS8700CQ fxos(PTC11, PTC10, FXOS8700CQ_SLAVE_ADDR0); // SDA, SCL, (addr << 1)
-// Storage for the data from the sensor
-SRAWDATA accel_data;
-SRAWDATA magn_data;
+FXOS8700 accel(PTC11, PTC10);
+FXOS8700 mag(PTC11, PTC10);
// main() runs in its own thread in the OS
// (note the calls to Thread::wait below for delays)
int main() {
- fxos.enable();
- while (true) {
+ // Configure Accelerometer FXOS8700, Magnetometer FXOS8700
+ accel.accel_config();
+ mag.mag_config();
+
+ float accel_data[3]; float accel_rms=0.0;
+ float mag_data[3]; float mag_rms=0.0;
+
+ printf("Begin Data Acquisition from FXOS8700 and FXAS21002....\r\n\r\n");
+ wait(0.5);
+
+ while (1) {
led1 = !led1;
// Example data printing
- fxos.get_data(&accel_data, &magn_data);
- printf("A X:%5d,Y:%5d,Z:%5d M X:%5d,Y:%5d,Z:%5d\r\n",
- accel_data.x, accel_data.y, accel_data.z,
- magn_data.x, magn_data.y, magn_data.z);
+
+ accel.acquire_accel_data_g(accel_data);
+ accel_rms = sqrt(((accel_data[0]*accel_data[0])+(accel_data[1]*accel_data[1])+(accel_data[2]*accel_data[2]))/3);
+ printf("Accelerometer \tX-Axis %4.2f \tY-Axis %4.2f \tZ-Axis %4.2f \tRMS %4.2f\n\r",accel_data[0],accel_data[1],accel_data[2],accel_rms);
+ wait(0.01);
+
+ mag.acquire_mag_data_uT(mag_data);
+ mag_rms = sqrt(((mag_data[0]*mag_data[0])+(mag_data[1]*mag_data[1])+(mag_data[2]*mag_data[2]))/3);
+ printf("Magnetometer \tX-Axis %4.2f \tY-Axis %4.2f \tZ-Axis %4.2f \tRMS %4.2f\n\n\r",mag_data[0],mag_data[1],mag_data[2],mag_rms);
+ wait(0.01);
Thread::wait(500);
}