Kenneth Lujan
/
midterm
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Dependencies: MMA8451Q SLCD mbed
Revision 0:35242770842b, committed 2014-09-29
- Comitter:
- kennylujan42
- Date:
- Mon Sep 29 17:28:18 2014 +0000
- Commit message:
- Midterm;
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MMA8451Q.lib Mon Sep 29 17:28:18 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/quevedo/code/MMA8451Q/#7c9ab58f6af3
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SLCD.lib Mon Sep 29 17:28:18 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/Sissors/code/SLCD/#ef2b3b7f1b01
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Sep 29 17:28:18 2014 +0000
@@ -0,0 +1,77 @@
+#include "mbed.h"
+#include "MMA8451Q.h"
+#include "SLCD.h"
+
+/*
+Test of the accelerometer, digital I/O, on-board LCD screen.
+ Looing at vector product of the x-y components of the accelerometer.
+ Works pretty well. Still rough, program wise - sc 140710
+ */
+
+#define DATATIME 0.200
+
+#define PROGNAME "ACCLCD341\r/n"
+
+#define PRINTDBUG
+//
+#if defined (TARGET_KL25Z) || defined (TARGET_KL46Z)
+ PinName const SDA = PTE25; // Data pins for the accelerometer/magnetometer.
+ PinName const SCL = PTE24; // DO NOT CHANGE
+#elif defined (TARGET_KL05Z)
+ PinName const SDA = PTB4;
+ PinName const SCL = PTB3;
+#else
+ #error TARGET NOT DEFINED
+#endif
+
+#define MMA8451_I2C_ADDRESS (0x1d<<1)
+
+SLCD slcd; //define LCD display
+
+MMA8451Q Acc(SDA, SCL, MMA8451_I2C_ADDRESS);
+Serial pc(USBTX, USBRX);
+
+float sqrt_newt(float argument) {
+ return (sqrt(argument));
+}
+
+
+void LCDMess(char *lMess, float dWait){
+ slcd.Home();
+ slcd.clear();
+ slcd.printf(lMess);
+ wait(dWait);
+}
+
+
+int main() {
+ float xAcc;
+ float yAcc;
+ float vector;
+ char lcdData[10]; //buffer needs places dor decimal pt and colon
+
+#ifdef PRINTDBUG
+ pc.printf(PROGNAME);
+#endif
+// main loop forever
+ while(true) {
+
+//Get accelerometer data - tilt angles minus offset for zero mark.
+ xAcc = abs(acc.getAccX());
+ yAcc = abs(acc.getAccY());
+ // Calulate vector sum of x and y reading.
+ vector = sqrt_newt(pow(xAcc,2) + pow(yAcc,2));
+
+
+#ifdef PRINTDBUG
+ pc.printf("xAcc = %f\r\n", xAcc);
+ pc.printf("yAcc = %f\r\n", yAcc);
+ pc.printf("vector = %f\r\n", vector);
+#endif
+
+ sprintf (lcdData,"%4.3f",vector);
+ LCDMess(lcdData, DATATIME);
+// Wait then do the whole thing again.
+ wait(DATATIME);
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Sep 29 17:28:18 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/552587b429a1 \ No newline at end of file