Add "Application Flow Control" examples and READMEs

.gitignore

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+.DS_Store
+BUILD/
+.mbed
+projectfiles
+*.py*
+mbed-os/

Flow-Control/Busy-Wait-Button/README.md

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+# Application Flow Control: Busy wait button example
+
+A digital input monitoring implementation with busy wait.

Flow-Control/Busy-Wait-Button/main.cpp

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+#include "mbed.h"
+
+DigitalIn button(SW1); // Change to match your board
+DigitalOut led(LED1);
+
+#define BUTTON_PRESS 0
+
+int main() {
+    while(1) {
+        if(BUTTON_PRESS == button){
+           led = !led;
+           wait(1);
+       }
+    }
+}

Flow-Control/Busy-Wait-Button/mbed-os.lib

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+https://github.com/ARMmbed/mbed-os/#c53d51fe9220728bf8ed27afe7afc1ecc3f6f5d7

Flow-Control/Busy-Wait/README.md

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+# Application Flow Control: Busy wait example
+
+A busy wait Blinky implementation.

Flow-Control/Busy-Wait/main.cpp

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+#include "mbed.h"
+
+DigitalOut myled(LED1);
+
+int main() {
+    while(1) {
+        myled = 1;
+        // printf("LED On\r\n");
+        wait(0.2);
+        myled = 0;
+        // printf("LED Off \r\n");
+        wait(0.2);
+    }
+}

Flow-Control/Busy-Wait/mbed-os.lib

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+https://github.com/ARMmbed/mbed-os/#c53d51fe9220728bf8ed27afe7afc1ecc3f6f5d7

Flow-Control/Interrupt-Button/README.md

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+# Application Flow Control: Interrupt button example
+
+A digital input monitoring implementation with an interrupt.

Flow-Control/Interrupt-Button/main.cpp

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+#include "mbed.h"
+
+InterruptIn button(SW1);
+DigitalOut led(LED1);
+DigitalOut heartbeat(LED2);
+
+void toggle() {
+    led = !led;
+}
+
+int main() {
+    button.rise(&toggle);  // call toggle function on the rising edge
+    while(1) {             // wait around, interrupts will interrupt this!
+        heartbeat = !heartbeat;
+        wait(0.25);
+    }
+}

Flow-Control/Interrupt-Button/mbed-os.lib

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+https://github.com/ARMmbed/mbed-os/#c53d51fe9220728bf8ed27afe7afc1ecc3f6f5d7

Flow-Control/README.md

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+# Application Flow Control
+
+The examples in this folder utilize Blinky in order to explore flow control and task management in Arm Mbed OS applications.

Flow-Control/Thread/README.md

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+# Application Flow Control: Thread example
+
+A threaded Blinky implementation.

Flow-Control/Thread/main.cpp

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+#include "mbed.h"
+
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+Thread thread;
+
+void led2_thread() {
+    while (true) {
+        led2 = !led2;
+        wait(1);
+    }
+}
+
+int main() {
+    // Create a thread to execute the function led2_thread
+    thread.start(led2_thread);
+    // led2_thread is executing concurrently with main at this point
+
+    while (true) {
+        led1 = !led1;
+        wait(0.5);
+    }
+}

Flow-Control/Thread/mbed-os.lib

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+https://github.com/ARMmbed/mbed-os/#c53d51fe9220728bf8ed27afe7afc1ecc3f6f5d7

Flow-Control/Ticker/README.md

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+# Application Flow Control: Ticker example
+
+A ticker Blinky implementation.

Flow-Control/Ticker/main.cpp

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+#include "mbed.h"
+
+Ticker flipper;
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+
+void flip() {
+    led2 = !led2;
+}
+
+int main() {
+    led2 = 1;
+    flipper.attach(&flip, 2.0); // call flip function every 2 seconds
+
+    // spin in a main loop. flipper will interrupt it to call flip
+    while(1) {
+        led1 = !led1;
+        wait(0.2);
+    }
+}

Flow-Control/Ticker/mbed-os.lib

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+https://github.com/ARMmbed/mbed-os/#c53d51fe9220728bf8ed27afe7afc1ecc3f6f5d7

IdleLoop/mbed-os.lib

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+https://github.com/ARMmbed/mbed-os/#c53d51fe9220728bf8ed27afe7afc1ecc3f6f5d7