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This project uses the internal Freescale FXOS8700CQ 6-axis accelerometer and magnetometer sensors to simulate a bubble level.
HexiBubble
C/C++HexiWear Bubble Level.
Full code available at:
https://developer.mbed.org/teams/Hexiwear/code/HexiBubble/
Full code available at:
https://developer.mbed.org/teams/Hexiwear/code/HexiBubble/
#include "mbed.h"
#include <SSD1351_SPI.h>
#include <HexiBubble.h>
#include "FXOS8700.h"
//SSD1351_SPI ( mosi, miso, sclk, cs, dc ) ;
SSD1351_SPI OLED96x96(PTB22,PTB23,PTB21,PTB20,PTD15);
// Pin connections for Hexiwear
FXOS8700 accel(PTC11, PTC10);
// Storage for the data from the sensor
float accel_data[3]; float accel_rms=0.0;
DigitalOut led1(LED1);
DigitalOut led2(LED2);
DigitalOut led3(LED3);
DigitalOut BOOSTEN(PTC13); //oled power enable
int count = 0;
extern const uint8_t Main_screen_bmp[ 36864 ];
int argb = 0xff000000;
int rgbd = 0x00000000;
int xposg = 0;
int yposg = 0;
int main() {
led1 = 1;
led2 = 1;
led3 = 1;
// Configure Accelerometer FXOS8700
accel.accel_config();
BOOSTEN = 1;
OLED96x96.open();
OLED96x96.state(Display::DISPLAY_ON);
OLED96x96.fillRect(16,0,111,96,0xff000000);//alpha, BGR
for(int xpos=0;xpos<97;xpos++)
{
for(int ypos=0;ypos<96;ypos++)
{
rgbd = ((Main_screen_bmp[count+3]<<24)|(Main_screen_bmp[count]<<16)|(Main_screen_bmp[count+1]<<8)|(Main_screen_bmp[count+2]));
OLED96x96.drawPixel(ypos+16,xpos,rgbd);
count=count+4;
}
}
OLED96x96.drawCircle(61,47,4,0xff00ff00);
OLED96x96.drawCircle(61,47,3,0xff00ff00);
OLED96x96.drawCircle(61,47,2,0xff00ff00);
while(1)
{
accel.acquire_accel_data_g(accel_data);
xposg=(accel_data[1]*(-40.0));
if (xposg > 27)
xposg = 27;
if (xposg < -27)
xposg = -27;
yposg=accel_data[0]*40.0;
if (yposg > 27)
yposg = 27;
if (yposg < -27)
yposg = -27;
if((xposg == 0) and (yposg == 0))
{
led1 = 1;
led2 = 0;
}
OLED96x96.drawCircle(61,47,8,0xff00ff00);
OLED96x96.drawLine(61,7,61,87,0xff00ff00);
OLED96x96.drawLine(21,47,101,47,0xff00ff00);
OLED96x96.drawCircle(61-xposg,47+yposg,4,0xff00ff00);
OLED96x96.drawCircle(61-xposg,47+yposg,3,0xff00ff00);
OLED96x96.drawCircle(61-xposg,47+yposg,2,0xff00ff00);
Thread::wait(20);
OLED96x96.drawCircle(61-xposg,47+yposg,4,0xff000000);
OLED96x96.drawCircle(61-xposg,47+yposg,3,0xff000000);
OLED96x96.drawCircle(61-xposg,47+yposg,2,0xff000000);
led1 = 0;
led2 = 1;
}
}
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