Sarang Kharche / Mbed OS TSI_sample

TSI

Dependencies:   TSI

Fork of TSI_sample by William Marsh

main.cpp@5:dad93c5af6f6, 2018-03-01 (annotated)

Committer:
Sarang
Date:
Thu Mar 01 18:59:53 2018 +0000
Revision:
5:dad93c5af6f6
Parent:
4:d54e74fbf82c 
TSI

Who changed what in which revision?

UserRevisionLine numberNew contents of line
WilliamMarshQMUL 0:4374caa1ef17 1 #include "mbed.h"
WilliamMarshQMUL 0:4374caa1ef17 2 #include "TSISensor.h"
WilliamMarshQMUL 0:4374caa1ef17 3
WilliamMarshQMUL 0:4374caa1ef17 4 // Example program for lab 5
WilliamMarshQMUL 0:4374caa1ef17 5 // -------------------------
WilliamMarshQMUL 0:4374caa1ef17 6 // A value is read from the touch sensor and use
WilliamMarshQMUL 0:4374caa1ef17 7 // to control two LEDs
WilliamMarshQMUL 0:4374caa1ef17 8 // The value is also output to the serial interface
WilliamMarshQMUL 0:4374caa1ef17 9
WilliamMarshQMUL 0:4374caa1ef17 10 Serial pc(USBTX, USBRX); // tx, rx
WilliamMarshQMUL 0:4374caa1ef17 11 DigitalOut redLED(LED_RED);
WilliamMarshQMUL 0:4374caa1ef17 12 DigitalOut greenLED(LED_GREEN);
Sarang 5:dad93c5af6f6 13 DigitalOut blueLED (LED_BLUE);
Sarang 5:dad93c5af6f6 14 DigitalOut led1(D0);
WilliamMarshQMUL 0:4374caa1ef17 15 TSISensor tsi;
WilliamMarshQMUL 0:4374caa1ef17 16
WilliamMarshQMUL 0:4374caa1ef17 17 Thread redThread ; // thread for red LED
WilliamMarshQMUL 0:4374caa1ef17 18 Thread greenThread ; // thread for green LED
Sarang 5:dad93c5af6f6 19 Thread blueThread ;
Sarang 5:dad93c5af6f6 20 Thread orangeThread ;
WilliamMarshQMUL 0:4374caa1ef17 21
WilliamMarshQMUL 0:4374caa1ef17 22 void red_thread() { // method to run in thread
WilliamMarshQMUL 0:4374caa1ef17 23 while (true) {
WilliamMarshQMUL 0:4374caa1ef17 24 Thread::signal_wait(0x1);
Sarang 5:dad93c5af6f6 25 redLED = !redLED ; // turn on
WilliamMarshQMUL 0:4374caa1ef17 26 redThread.signal_clr(0x1) ;
WilliamMarshQMUL 0:4374caa1ef17 27 // Signal are automatically cleared by wait_signal but
WilliamMarshQMUL 0:4374caa1ef17 28 // the signal might have been set again while LED on
WilliamMarshQMUL 0:4374caa1ef17 29 }
WilliamMarshQMUL 0:4374caa1ef17 30 }
WilliamMarshQMUL 0:4374caa1ef17 31
WilliamMarshQMUL 0:4374caa1ef17 32 void green_thread() { // method to run in thread
WilliamMarshQMUL 0:4374caa1ef17 33 while (true) {
WilliamMarshQMUL 0:4374caa1ef17 34 Thread::signal_wait(0x1);
Sarang 5:dad93c5af6f6 35 greenLED = !greenLED ; // turn on
WilliamMarshQMUL 0:4374caa1ef17 36 greenThread.signal_clr(0x1) ;
WilliamMarshQMUL 0:4374caa1ef17 37 // Signal are automatically cleared by wait_signal but
WilliamMarshQMUL 0:4374caa1ef17 38 // the signal might have been set again while LED on
WilliamMarshQMUL 0:4374caa1ef17 39 }
WilliamMarshQMUL 0:4374caa1ef17 40 }
WilliamMarshQMUL 0:4374caa1ef17 41
Sarang 5:dad93c5af6f6 42 void blue_thread() { // method to run in thread
Sarang 5:dad93c5af6f6 43 while (true) {
Sarang 5:dad93c5af6f6 44 Thread::signal_wait(0x1);
Sarang 5:dad93c5af6f6 45 blueLED = !blueLED ; // turn on
Sarang 5:dad93c5af6f6 46 blueThread.signal_clr(0x1) ;
Sarang 5:dad93c5af6f6 47 // Signal are automatically cleared by wait_signal but
Sarang 5:dad93c5af6f6 48 // the signal might have been set again while LED on
Sarang 5:dad93c5af6f6 49 }
Sarang 5:dad93c5af6f6 50 }
Sarang 5:dad93c5af6f6 51
Sarang 5:dad93c5af6f6 52 void orange_thread() { // method to run in thread
Sarang 5:dad93c5af6f6 53 while (true) {
Sarang 5:dad93c5af6f6 54
Sarang 5:dad93c5af6f6 55 led1 = true;
Sarang 5:dad93c5af6f6 56 Thread::signal_wait(0x1);
Sarang 5:dad93c5af6f6 57 led1 = !led1 ; // turn on
Sarang 5:dad93c5af6f6 58 orangeThread.signal_clr(0x1) ;
Sarang 5:dad93c5af6f6 59 // Signal are automatically cleared by wait_signal but
Sarang 5:dad93c5af6f6 60 // the signal might have been set again while LED on
Sarang 5:dad93c5af6f6 61 }
Sarang 5:dad93c5af6f6 62 }
Sarang 5:dad93c5af6f6 63
Sarang 5:dad93c5af6f6 64
WilliamMarshQMUL 0:4374caa1ef17 65 int main(void) {
WilliamMarshQMUL 0:4374caa1ef17 66 redLED = true ; // turn off
WilliamMarshQMUL 0:4374caa1ef17 67 greenLED = true ; // turn off
Sarang 5:dad93c5af6f6 68 blueLED = true ;
Sarang 5:dad93c5af6f6 69 led1 = true ;
WilliamMarshQMUL 0:4374caa1ef17 70 redThread.start(&red_thread) ; // start the red thread
WilliamMarshQMUL 0:4374caa1ef17 71 greenThread.start(&green_thread) ; // start the green thread
Sarang 5:dad93c5af6f6 72 blueThread.start(&blue_thread) ;
Sarang 5:dad93c5af6f6 73 orangeThread.start(&orange_thread);
WilliamMarshQMUL 0:4374caa1ef17 74
WilliamMarshQMUL 0:4374caa1ef17 75 while (true) {
WilliamMarshQMUL 0:4374caa1ef17 76 uint8_t d = tsi.readDistance() ; // Distance is between 0 and 39
WilliamMarshQMUL 0:4374caa1ef17 77 // When no touch --> 0
WilliamMarshQMUL 0:4374caa1ef17 78 // Left --> low value Right --> high value
WilliamMarshQMUL 0:4374caa1ef17 79 pc.printf("%d", d) ;
WilliamMarshQMUL 1:e6ffa08ad8bf 80 pc.putc(' ') ;
Sarang 5:dad93c5af6f6 81 if (d > 3 && d < 9) redThread.signal_set(0x1) ;
Sarang 5:dad93c5af6f6 82
Sarang 5:dad93c5af6f6 83 if (d > 13 && d < 19) greenThread.signal_set(0x1) ;
Sarang 5:dad93c5af6f6 84
Sarang 5:dad93c5af6f6 85 if (d > 23 && d < 29) blueThread.signal_set(0x1) ;
Sarang 5:dad93c5af6f6 86
Sarang 5:dad93c5af6f6 87 if (d > 30 && d < 39) orangeThread.signal_set(0x1) ;
Sarang 5:dad93c5af6f6 88
WilliamMarshQMUL 1:e6ffa08ad8bf 89 Thread::wait(200); // This polling rate is too slow - increase it
WilliamMarshQMUL 1:e6ffa08ad8bf 90 // The slower rate maks it easier to output on the terminal
WilliamMarshQMUL 0:4374caa1ef17 91 }
Sarang 5:dad93c5af6f6 92 }