Aleksandar Lukic
task
Dependencies: mbed Adafruit_GFX0
Revision 0:806ae74bb791, committed 2021-12-13
- Comitter:
- lule
- Date:
- Mon Dec 13 16:07:39 2021 +0000
- Commit message:
- ..
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Adafruit_GFX.lib Mon Dec 13 16:07:39 2021 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/lule/code/Adafruit_GFX0/#fd918dd00548
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Dec 13 16:07:39 2021 +0000
@@ -0,0 +1,110 @@
+/* Moving the rectangle previewed on the OLED display
+ * by using potentiometers POT1 and POT2
+ *
+ * November, 2021.
+ */
+#include "mbed.h"
+#include "Adafruit_GFX.h"
+#include "Adafruit_GFX_Config.h"
+#include "Adafruit_SSD1306.h"
+
+// I2C bus pins:
+#define D_SDA PB_14
+#define D_SCL PB_13
+// I2C address, 60d or 0x3c:
+#define I2C_REAL_ADD 0x3c
+#define I2C_ADDRESS I2C_REAL_ADD << 1
+// Set OLED width and heigth [pixel]:
+#define OLED_WIDTH_PX 128
+#define OLED_HEIGHT_PX 64
+// I2C frequency:
+#define I2C_FREQUENCY 400000
+// Multipliers of POT1 and POT2 for OLED rectangle position:
+#define WIDTH_SCALER 128
+#define HEIGHT_SCALER 64
+// Initial rectangle position:
+#define INITIAL_X_POSITION OLED_WIDTH_PX / 2
+#define INITIAL_Y_POSITION OLED_HEIGHT_PX / 2
+// Refresh rate:
+#define REFRESH_RATE_MS 5
+// Half of the potentiometer return value:
+#define HALF_INTERVAL 0.5f
+// x and y max values
+#define XMAX 127
+#define YMAX 63
+#define XMIN 0
+#define YMIN 0
+
+// Initialize potentiometers' pins:
+AnalogIn POT1(PA_0);
+AnalogIn POT2(PA_1);
+
+// Initialize I2C:
+I2C i2c(D_SDA,D_SCL);
+
+// Initialize OLED display:
+Adafruit_SSD1306_I2c myOled(i2c,PB_5,I2C_ADDRESS,OLED_HEIGHT_PX,OLED_WIDTH_PX);
+
+void screenSaver(){
+ int x = 7, y = 12, r = 5, xk = 1, yk = 1, dx = 4, dy = 3;
+
+ while(true){
+ myOled.drawRect(0, 0, OLED_WIDTH_PX - 1, OLED_HEIGHT_PX - 1, WHITE);
+
+ if((x - r) <= XMIN) xk = 1;
+ if((x + r) >= XMAX) xk = -1;
+
+ if((y - r) <= YMIN) yk = 1;
+ if((y + r) >= YMAX) yk = -1;
+
+ y += dy * yk;
+ x += dx * xk;
+
+ myOled.fillCircle(x, y, r, WHITE);
+
+ myOled.display();
+
+ wait_ms(REFRESH_RATE_MS);
+ myOled.clearDisplay();
+ }
+}
+
+void bounce(){
+ int x = 7, y = 12, r = 5, xk = 1, yk = 1, dx = 4, dy = 3, g = 3;
+
+ while(true){
+ myOled.drawRect(0, 0, OLED_WIDTH_PX - 1, OLED_HEIGHT_PX - 1, WHITE);
+
+ if((x - r) <= XMIN) xk = 1;
+ if((x + r) >= XMAX) xk = -1;
+
+ if((y + r) <= YMAX){
+ dy += g;
+ y += dy;
+ } else {
+ dy = -dy;
+ y = 2 * YMAX - y;
+ }
+
+ y += dy * yk;
+ x += dx * xk;
+
+ myOled.fillCircle(x, y, r, WHITE);
+
+ myOled.display();
+
+ wait_ms(REFRESH_RATE_MS);
+ myOled.clearDisplay();
+ }
+}
+
+int main() {
+
+// Initialize OLED:
+ myOled.begin();
+ myOled.setTextCursor(0, 0);
+ i2c.frequency(I2C_FREQUENCY);
+
+ //screenSaver();
+ bounce();
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Dec 13 16:07:39 2021 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400 \ No newline at end of file