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Lab5
Fork of TSI_sample by
main.cpp
- Committer:
- WilliamMarshQMUL
- Date:
- 2017-02-15
- Revision:
- 1:e6ffa08ad8bf
- Parent:
- 0:4374caa1ef17
- Child:
- 4:d54e74fbf82c
File content as of revision 1:e6ffa08ad8bf:
#include "mbed.h" #include "rtos.h" #include "TSISensor.h" // Example program for lab 5 // ------------------------- // A value is read from the touch sensor and use // to control two LEDs // The value is also output to the serial interface Serial pc(USBTX, USBRX); // tx, rx DigitalOut redLED(LED_RED); DigitalOut greenLED(LED_GREEN); TSISensor tsi; Thread redThread ; // thread for red LED Thread greenThread ; // thread for green LED void red_thread() { // method to run in thread while (true) { Thread::signal_wait(0x1); redLED = false ; // turn on Thread::wait(5000); redLED = true ; // turn off redThread.signal_clr(0x1) ; // Signal are automatically cleared by wait_signal but // the signal might have been set again while LED on } } void green_thread() { // method to run in thread while (true) { Thread::signal_wait(0x1); greenLED = false ; // turn on Thread::wait(5000); greenLED = true ; // turn off greenThread.signal_clr(0x1) ; // Signal are automatically cleared by wait_signal but // the signal might have been set again while LED on } } int main(void) { redLED = true ; // turn off greenLED = true ; // turn off redThread.start(&red_thread) ; // start the red thread greenThread.start(&green_thread) ; // start the green thread while (true) { uint8_t d = tsi.readDistance() ; // Distance is between 0 and 39 // When no touch --> 0 // Left --> low value Right --> high value pc.printf("%d", d) ; pc.putc(' ') ; if (d == 10) redThread.signal_set(0x1) ; if (d == 20) greenThread.signal_set(0x1) ; Thread::wait(200); // This polling rate is too slow - increase it // The slower rate maks it easier to output on the terminal } }