Hexiwear
Advanced gyroscope program example for Hexiwear featuring OLED Display
Dependencies: FXAS21002 Hexi_OLED_SSD1351
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Hexi_Gyro-v2_Example
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Hexiwear
This project demonstrates the use of the FXAS21002CQ Gyroscope sensor embedded in Hexiwear
Compile the project and copy the binary "Hexi_Gyro-V2_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
The Roll, the Pitch and the Yaw values will be displayed in real-time on the OLED Display.
Diff: main.cpp
- Revision:
- 0:2ebb70d2b0d9
- Child:
- 1:6bd53a378639
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sat Sep 24 19:19:42 2016 +0000
@@ -0,0 +1,87 @@
+#include "mbed.h"
+#include "FXAS21002.h"
+#include "Hexi_OLED_SSD1351.h"
+#include "images.h"
+#include "string.h"
+
+// Pin connections
+DigitalOut led1(LED_GREEN); // RGB LED
+Serial pc(USBTX, USBRX); // Serial interface
+FXAS21002 gyro(PTC11,PTC10); // Gyroscope
+SSD1351 oled(PTB22,PTB21,PTC13,PTB20,PTE6, PTD15); // SSD1351 OLED Driver (MOSI,SCLK,POWER,CS,RST,DC)
+
+// Variables
+float gyro_data[3]; // Storage for the data from the sensor
+//float gyro_rms=0.0; // RMS value from the sensor
+int x, y, z; // Integer value from the sensor to be displayed
+const uint8_t *image1; // Pointer for the image to be displayed
+char text[20]; // Text Buffer for dynamic value displayed
+
+
+
+
+int main() {
+
+ gyro.gyro_config();
+
+ /* Setting pointer location of the 96 by 96 pixel bitmap */
+ image1 = Gyroscope;
+
+ /* Turn on the backlight of the OLED Display */
+// oled.DimScreenON();
+
+ /* Fill 96px by 96px Screen with 96px by 96px NXP Image starting at x=0,y=0 */
+ oled.DrawImage(image1,0,0);
+
+
+
+
+
+ while (true) {
+
+ gyro.acquire_gyro_data_dps(gyro_data);
+ pc.printf("Roll (G) %4.2f,\t Pitch (G) %4.2f,\t Yaw (G) %4.2f\r\n",gyro_data[0],gyro_data[1],gyro_data[2]);
+// gyro_rms = sqrt(((gyro_data[0]*gyro_data[0])+(gyro_data[1]*gyro_data[1])+(gyro_data[2]*gyro_data[2]))/3);
+// pc.printf("Gyroscope RMS %f \r\n\n",gyro_rms);
+ x = gyro_data[0];
+ y = gyro_data[1];
+ z = gyro_data[2];
+
+ /* Get OLED Class Default Text Properties */
+ oled_text_properties_t textProperties = {0};
+ oled.GetTextProperties(&textProperties);
+
+ /* Set text properties to white and right aligned for the dynamic text */
+ textProperties.fontColor = COLOR_BLUE;
+ textProperties.alignParam = OLED_TEXT_ALIGN_LEFT;
+ oled.SetTextProperties(&textProperties);
+
+ /* Format the value */
+ sprintf(text,"%i",x);
+ /* Display time reading in 35px by 15px textbox at(x=55, y=40) */
+ oled.TextBox((uint8_t *)text,5,75,20,15); //Increase textbox for more digits
+
+ /* Set text properties to white and right aligned for the dynamic text */
+ textProperties.fontColor = COLOR_GREEN;
+ textProperties.alignParam = OLED_TEXT_ALIGN_CENTER;
+ oled.SetTextProperties(&textProperties);
+
+ /* Format the value */
+ sprintf(text,"%i",y);
+ /* Display time reading in 35px by 15px textbox at(x=55, y=40) */
+ oled.TextBox((uint8_t *)text,37,75,20,15); //Increase textbox for more digits
+
+ /* Set text properties to white and right aligned for the dynamic text */
+ textProperties.fontColor = COLOR_RED;
+ textProperties.alignParam = OLED_TEXT_ALIGN_RIGHT;
+ oled.SetTextProperties(&textProperties);
+
+ /* Format the value */
+ sprintf(text,"%i",z);
+ /* Display time reading in 35px by 15px textbox at(x=55, y=40) */
+ oled.TextBox((uint8_t *)text,70,75,20,15); //Increase textbox for more digits
+
+ led1 = !led1;
+ Thread::wait(250);
+ }
+}
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