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Test publish
Dependencies: MMA8451Q SLCD mbed
Fork of ACC_LCD_341_MID by
acc_341.cpp@2:6003ed409def, 2014-09-25 (annotated)
- Committer:
- scohennm
- Date:
- Thu Sep 25 23:45:35 2014 +0000
- Revision:
- 2:6003ed409def
- Parent:
- 1:9340a340e588
- Child:
- 3:ad3efc2241b4
Update for Newton SQRT
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
scohennm | 0:203b4129a213 | 1 | #include "mbed.h" |
scohennm | 0:203b4129a213 | 2 | #include "MMA8451Q.h" |
scohennm | 0:203b4129a213 | 3 | #include "SLCD.h" |
scohennm | 0:203b4129a213 | 4 | |
scohennm | 0:203b4129a213 | 5 | /* |
scohennm | 0:203b4129a213 | 6 | Test of the accelerometer, digital I/O, on-board LCD screen. |
scohennm | 0:203b4129a213 | 7 | Looing at vector product of the x-y components of the accelerometer. |
scohennm | 0:203b4129a213 | 8 | Works pretty well. Still rough, program wise - sc 140710 |
scohennm | 0:203b4129a213 | 9 | */ |
scohennm | 0:203b4129a213 | 10 | |
scohennm | 0:203b4129a213 | 11 | #define DATATIME 0.200 |
scohennm | 0:203b4129a213 | 12 | |
scohennm | 0:203b4129a213 | 13 | #define PROGNAME "ACCLCD341\r/n" |
scohennm | 0:203b4129a213 | 14 | |
scohennm | 0:203b4129a213 | 15 | #define PRINTDBUG |
scohennm | 2:6003ed409def | 16 | // |
scohennm | 0:203b4129a213 | 17 | #if defined (TARGET_KL25Z) || defined (TARGET_KL46Z) |
scohennm | 2:6003ed409def | 18 | PinName const SDA = PTE25; // Data pins for the accelerometer/magnetometer. |
scohennm | 2:6003ed409def | 19 | PinName const SCL = PTE24; // DO NOT CHANGE |
scohennm | 0:203b4129a213 | 20 | #elif defined (TARGET_KL05Z) |
scohennm | 0:203b4129a213 | 21 | PinName const SDA = PTB4; |
scohennm | 0:203b4129a213 | 22 | PinName const SCL = PTB3; |
scohennm | 0:203b4129a213 | 23 | #else |
scohennm | 0:203b4129a213 | 24 | #error TARGET NOT DEFINED |
scohennm | 0:203b4129a213 | 25 | #endif |
scohennm | 0:203b4129a213 | 26 | |
scohennm | 0:203b4129a213 | 27 | #define MMA8451_I2C_ADDRESS (0x1d<<1) |
scohennm | 0:203b4129a213 | 28 | |
scohennm | 0:203b4129a213 | 29 | SLCD slcd; //define LCD display |
scohennm | 0:203b4129a213 | 30 | |
scohennm | 0:203b4129a213 | 31 | MMA8451Q acc(SDA, SCL, MMA8451_I2C_ADDRESS); |
scohennm | 0:203b4129a213 | 32 | Serial pc(USBTX, USBRX); |
scohennm | 0:203b4129a213 | 33 | |
scohennm | 2:6003ed409def | 34 | float sqrt_newt(float argument) { |
scohennm | 2:6003ed409def | 35 | return (sqrt(argument)); |
scohennm | 2:6003ed409def | 36 | } |
scohennm | 2:6003ed409def | 37 | |
scohennm | 0:203b4129a213 | 38 | |
scohennm | 0:203b4129a213 | 39 | void LCDMess(char *lMess, float dWait){ |
scohennm | 0:203b4129a213 | 40 | slcd.Home(); |
scohennm | 0:203b4129a213 | 41 | slcd.clear(); |
scohennm | 0:203b4129a213 | 42 | slcd.printf(lMess); |
scohennm | 0:203b4129a213 | 43 | wait(dWait); |
scohennm | 0:203b4129a213 | 44 | } |
scohennm | 0:203b4129a213 | 45 | |
scohennm | 0:203b4129a213 | 46 | |
scohennm | 0:203b4129a213 | 47 | int main() { |
scohennm | 0:203b4129a213 | 48 | float xAcc; |
scohennm | 0:203b4129a213 | 49 | float yAcc; |
scohennm | 0:203b4129a213 | 50 | float vector; |
scohennm | 0:203b4129a213 | 51 | char lcdData[10]; //buffer needs places dor decimal pt and colon |
scohennm | 0:203b4129a213 | 52 | |
scohennm | 0:203b4129a213 | 53 | #ifdef PRINTDBUG |
scohennm | 0:203b4129a213 | 54 | pc.printf(PROGNAME); |
scohennm | 0:203b4129a213 | 55 | #endif |
scohennm | 0:203b4129a213 | 56 | // main loop forever |
scohennm | 0:203b4129a213 | 57 | while(true) { |
scohennm | 0:203b4129a213 | 58 | |
scohennm | 0:203b4129a213 | 59 | //Get accelerometer data - tilt angles minus offset for zero mark. |
scohennm | 0:203b4129a213 | 60 | xAcc = abs(acc.getAccX()); |
scohennm | 0:203b4129a213 | 61 | yAcc = abs(acc.getAccY()); |
scohennm | 0:203b4129a213 | 62 | // Calulate vector sum of x and y reading. |
scohennm | 2:6003ed409def | 63 | vector = sqrt_newt(pow(xAcc,2) + pow(yAcc,2)); |
scohennm | 0:203b4129a213 | 64 | |
scohennm | 0:203b4129a213 | 65 | |
scohennm | 0:203b4129a213 | 66 | #ifdef PRINTDBUG |
scohennm | 1:9340a340e588 | 67 | pc.printf("xAcc = %f\r\n", xAcc); |
scohennm | 1:9340a340e588 | 68 | pc.printf("yAcc = %f\r\n", yAcc); |
scohennm | 0:203b4129a213 | 69 | pc.printf("vector = %f\r\n", vector); |
scohennm | 0:203b4129a213 | 70 | #endif |
scohennm | 0:203b4129a213 | 71 | |
scohennm | 0:203b4129a213 | 72 | sprintf (lcdData,"%4.3f",vector); |
scohennm | 0:203b4129a213 | 73 | LCDMess(lcdData, DATATIME); |
scohennm | 0:203b4129a213 | 74 | // Wait then do the whole thing again. |
scohennm | 0:203b4129a213 | 75 | wait(DATATIME); |
scohennm | 0:203b4129a213 | 76 | } |
scohennm | 0:203b4129a213 | 77 | } |