William Ye / Mbed 2 deprecated ulcd_accel

actual thing accelerator

Dependencies:   4DGL-uLCD-SE ulcd_accel mbed

Dependents:   ulcd_accel

main.cpp@0:fd0d8678abae, 2016-01-30 (annotated)

Committer:
wye11
Date:
Sat Jan 30 07:12:15 2016 +0000
Revision:
0:fd0d8678abae
huh

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wye11 0:fd0d8678abae 1 // Demo for the uLCD-144-G2 and MMA8452Q 3-axis accelerometer
wye11 0:fd0d8678abae 2
wye11 0:fd0d8678abae 3 #include "mbed.h"
wye11 0:fd0d8678abae 4 #include "MMA8452Q.h"
wye11 0:fd0d8678abae 5 #include "uLCD_4DGL.h"
wye11 0:fd0d8678abae 6
wye11 0:fd0d8678abae 7 // Graphic LCD - TX, RX, and RES pins
wye11 0:fd0d8678abae 8 uLCD_4DGL uLCD(p9,p10,p11);
wye11 0:fd0d8678abae 9
wye11 0:fd0d8678abae 10 // Accelerometer - SDA, SCL, and I2C address
wye11 0:fd0d8678abae 11 MMA8452Q accel(p28, p27, 0x1D);
wye11 0:fd0d8678abae 12
wye11 0:fd0d8678abae 13 int main() {
wye11 0:fd0d8678abae 14
wye11 0:fd0d8678abae 15 // Initialize uLCD
wye11 0:fd0d8678abae 16 uLCD.baudrate(115200);
wye11 0:fd0d8678abae 17 uLCD.background_color(BLACK);
wye11 0:fd0d8678abae 18 uLCD.cls();
wye11 0:fd0d8678abae 19
wye11 0:fd0d8678abae 20 // Initialize accelerometer
wye11 0:fd0d8678abae 21 accel.init();
wye11 0:fd0d8678abae 22
wye11 0:fd0d8678abae 23 // Initial parameters for the circle
wye11 0:fd0d8678abae 24 float x = 64;
wye11 0:fd0d8678abae 25 float y = 64;
wye11 0:fd0d8678abae 26 int radius = 4;
wye11 0:fd0d8678abae 27 int speed = 4;
wye11 0:fd0d8678abae 28
wye11 0:fd0d8678abae 29 // Make a ball "fall" in direction of accelerometer
wye11 0:fd0d8678abae 30 while (1) {
wye11 0:fd0d8678abae 31
wye11 0:fd0d8678abae 32 // Draw a red circle
wye11 0:fd0d8678abae 33 uLCD.filled_circle((int)x, (int)y, radius, RED);
wye11 0:fd0d8678abae 34
wye11 0:fd0d8678abae 35 // Wait before erasing old circle
wye11 0:fd0d8678abae 36 wait(0.02); // In seconds
wye11 0:fd0d8678abae 37
wye11 0:fd0d8678abae 38 // Erase old circle
wye11 0:fd0d8678abae 39 uLCD.filled_circle((int)x, (int)y, radius, BLACK);
wye11 0:fd0d8678abae 40
wye11 0:fd0d8678abae 41 // Move circle. IMPORTANT! Notice how we adjust for sensor orientation!
wye11 0:fd0d8678abae 42 x -= (speed * accel.readY());
wye11 0:fd0d8678abae 43 y -= (speed * accel.readX());
wye11 0:fd0d8678abae 44
wye11 0:fd0d8678abae 45 // Make circle sit on edges
wye11 0:fd0d8678abae 46 if ( x <= radius + 1 ) {
wye11 0:fd0d8678abae 47 x = radius + 1;
wye11 0:fd0d8678abae 48 } else if ( x >= 126 - radius ) {
wye11 0:fd0d8678abae 49 x = 126 - radius;
wye11 0:fd0d8678abae 50 }
wye11 0:fd0d8678abae 51 if ( y <= radius + 1 ) {
wye11 0:fd0d8678abae 52 y = radius + 1;
wye11 0:fd0d8678abae 53 } else if ( y >= 126 - radius ) {
wye11 0:fd0d8678abae 54 y = 126 - radius;
wye11 0:fd0d8678abae 55 }
wye11 0:fd0d8678abae 56 }
wye11 0:fd0d8678abae 57 }