Kai Riedel
* Demonstrate the evaluation of BOSCH BMA020 acceleration sensor * View the values on LCD and in a special LabView App * Use of Demoboard from ELV (Best.-Nr. 91521) * Datasheets and Labview app: [[http://mbed.org/users/kriedel/notebook/sensorapplications/]]
Revision 0:865c8c06113f, committed 2011-03-16
- Comitter:
- kriedel
- Date:
- Wed Mar 16 11:17:05 2011 +0000
- Commit message:
Changed in this revision
diff -r 000000000000 -r 865c8c06113f TextLCD_ST7036.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TextLCD_ST7036.lib Wed Mar 16 11:17:05 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/kriedel/code/TextLCD_ST7036/#815abe961826
diff -r 000000000000 -r 865c8c06113f main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Mar 16 11:17:05 2011 +0000
@@ -0,0 +1,77 @@
+#include "mbed.h"
+#include "TextLCD.h"
+
+
+I2C i2c(p9, p10);
+Serial pc(USBTX, USBRX); // tx, rx
+
+//LCD EA DOGM162x-A
+TextLCD lcd(p15, p16, p17, p18, p19, p21); // rs, e, d4-d7
+
+BusOut leds(LED1, LED2, LED3, LED4);
+
+int i;
+
+int main() {
+
+ char address;
+ short xvalue;
+ short yvalue;
+ short zvalue;
+ float f_xvalue,f_yvalue;
+
+ char data[6];
+
+ lcd.printf("Bosch BMA020\nAccelerometer");
+
+ wait (2);
+ lcd.cls();
+
+ while(1) {
+
+ address = 0x70; // write address
+ data[0] = 0x02; // register address
+ i2c.write(address, data, 1);
+ address = 0x71; // read address, read 6 bytes automatically
+ i2c.read(address, data, 6);
+
+ xvalue=data[0]>>6;
+ xvalue+=(short)data[1]<<2;
+
+ yvalue=data[2]>>6;
+ yvalue+=(short)data[3]<<2;
+
+ zvalue=data[4]>>6;
+ zvalue+=(short)data[5]<<2;
+
+ pc.printf("%4d%4d%4d\n", xvalue, yvalue, zvalue); // write to serial port (9600 Baud)
+
+ xvalue<<=6;
+ xvalue/=64;
+ f_xvalue=xvalue;
+ f_xvalue*=0.004;
+
+ yvalue<<=6;
+ yvalue/=64;
+ f_yvalue=yvalue;
+ f_yvalue*=0.004;
+
+ lcd.locate(0,0);
+ lcd.printf("X=%+1.2f Y=%+1.2f", f_xvalue, f_yvalue);
+
+ lcd.locate(0,1);
+ lcd.printf(" ");
+ if (data[1]<16) // visualize x value like spirit level device
+ {
+ lcd.locate(15-data[1],1);
+ lcd.printf("O");
+ }
+
+
+
+
+ if (data[2]&&0x01) leds = 1 << data[3]+2; // neue Daten?
+
+ wait (0.1);
+ }
+}
diff -r 000000000000 -r 865c8c06113f mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Wed Mar 16 11:17:05 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/e2ac27c8e93e