Diff: main.cpp

Revision:

0:ba1ff21c7bad

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu May 12 15:26:37 2022 +0000
@@ -0,0 +1,75 @@
+/*-------------------------------------------------------------
+//-------------------------------------------------------------\\
+||        Bought to you by....                                  ||
+||    _____                         _   _                       ||
+||    \  _ \              _     _  | | / /    _   _  _     _    ||
+||    | | | |__ ___  ___ | | __| | | |/ /___ | | | |\ \  / /    ||
+||    | | | | -\  - \ __ \ |/ _` | |   /  __\| | | | \ \/ /     ||
+||    | |/  |   \ _ / __| || (_| | | |\ \  _\| | | |  | |       ||
+||    /____/ _/\_\ \_\ __/_|\__,_| |_| \_\____\| |_|  |_|       ||
+|| Electrical Engineer @ University of the District of Colombia ||
+||                                                              ||
+|| Date: 5/11/22                                                ||
+||                                                              ||
+|| Description:  MECH478  CBE Completion Project                ||
+||                                                              ||
+\\-------------------------------------------------------------//
+  -------------------------------------------------------------  */
+
+// uLCD-144-G2 and MMA8452Q 3-axis accelerometer
+
+#include "mbed.h"
+#include "MMA8452Q.h"
+#include "uLCD_4DGL.h"
+
+// Graphic LCD - TX, RX, and RES pins
+uLCD_4DGL uLCD(p9,p10,p11);
+
+// Accelerometer - SDA, SCL, and I2C address
+MMA8452Q accel(p28, p27, 0x1D);
+
+int main() {
+
+    // Initialize uLCD
+    uLCD.baudrate(115200);
+    uLCD.background_color(BLACK);
+    uLCD.cls();
+
+    // Initialize accelerometer
+    accel.init();
+
+    // Initial parameters for the circle
+    float x = 64;
+    float y = 64;
+    int radius = 4;
+    int speed = 4;
+
+    // Make a ball "fall" in direction of accelerometer
+    while (1) {
+
+        // Draw a red circle
+        uLCD.filled_circle((int)x, (int)y, radius, RED);
+
+        // Wait before erasing old circle
+        wait(0.02);         // In seconds
+
+        // Erase old circle
+        uLCD.filled_circle((int)x, (int)y, radius, BLACK);
+
+        // Move circle. IMPORTANT! Notice how we adjust for sensor orientation!
+        x -= (speed * accel.readY());
+        y -= (speed * accel.readX());
+
+        // Make circle sit on edges
+        if ( x <= radius + 1 ) {
+            x = radius + 1;
+        } else if ( x >= 126 - radius ) {
+            x = 126 - radius;
+        }
+        if ( y <= radius + 1 ) {
+            y = radius + 1;
+        } else if ( y >= 126 - radius ) {
+            y = 126 - radius;
+        }
+    }
+}