Advanced gyroscope program example for Hexiwear featuring OLED Display
Dependencies: FXAS21002 Hexi_OLED_SSD1351
Fork of Hexi_Gyro-v2_Example by
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.
main.cpp
- Committer:
- GregC
- Date:
- 2016-10-19
- Revision:
- 2:a041eec9ea8f
- Parent:
- 1:6bd53a378639
File content as of revision 2:a041eec9ea8f:
#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 float gx, gy, gz; // Integer value from the sensor to be displayed const uint8_t *image1; // Pointer for the image1 to be displayed char text1[20]; // Text Buffer for dynamic value displayed char text2[20]; // Text Buffer for dynamic value displayed char text3[20]; // Text Buffer for dynamic value displayed int main() { // Configure Gyroscope FXAS21002 gyro.gyro_config(); /* Setting pointer location of the 96 by 96 pixel bitmap */ image1 = Gyro; // Dimm Down OLED backlight // 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); 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 \tRoll (G) %4.2f \tPitch (G) %4.2f \tYaw (G) %4.2f \tRMS %4.2f\n\r",gyro_data[0],gyro_data[1],gyro_data[2],gyro_rms); wait(0.01); gx = gyro_data[0]; gy = gyro_data[1]; gz = 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); /* Display Legends */ strcpy((char *) text1,"Roll (dps):"); oled.Label((uint8_t *)text1,3,45); /* Format the value */ sprintf(text1,"%4.2f",gx); /* Display time reading in 35px by 15px textbox at(x=55, y=40) */ oled.TextBox((uint8_t *)text1,70,45,20,15); //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_LEFT; oled.SetTextProperties(&textProperties); /* Display Legends */ strcpy((char *) text2,"Pitch (dps):"); oled.Label((uint8_t *)text2,3,62); /* Format the value */ sprintf(text2,"%4.2f",gy); /* Display time reading in 35px by 15px textbox at(x=55, y=40) */ oled.TextBox((uint8_t *)text2,70,62,20,15); //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_LEFT; oled.SetTextProperties(&textProperties); /* Display Legends */ strcpy((char *) text3,"Yaw (dps):"); oled.Label((uint8_t *)text3,3,79); /* Format the value */ sprintf(text3,"%4.2f",gz); /* Display time reading in 35px by 15px textbox at(x=55, y=40) */ oled.TextBox((uint8_t *)text3,70,79,20,15); //Increase textbox for more digits led1 = !led1; Thread::wait(250); } }