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Switches between A en B bij pressing a button
Dependencies: MODSERIAL Motordriver mbed
main.cpp
- Committer:
- meikefrok
- Date:
- 2016-10-14
- Revision:
- 0:60a905a48133
File content as of revision 0:60a905a48133:
#include "mbed.h" #define SERIAL_BAUD 115200 // baud rate for serial communication #include "MODSERIAL.h" #include "motordriver.h" MODSERIAL pc(USBTX,USBRX); // = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > // Timing const float kTimeLedToggle = 0.25f; // period with which to toggle LED const float kTimePrintSerial = 1.0f;// period with which data is printed // = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > // constants const int kNumLeds = 3; // three LEDs const int kLedOn = 0; // LED on if 0 // LEDs DigitalOut led_0(LED_RED); DigitalOut led_1(LED_GREEN); // ID of led that should blink; *volatile* because changed by interrupt volatile int led_blink_id = 0; // counters int num_turned_on_0 = 0; // count number of times red LED turned on int num_turned_on_1 = 0; // count number of times green LED turned on //Safety for Motor int Brakeable; //cna the motor driver break int sign; //prevents throwing the motor from full foward to full reverse and stuff melting. //Motor Motor A(D6, D7, D7, Brakeable); // pwm, fwd, rev, brake Motor B(D5, D4, D4, Brakeable); // pwm, fwd, rev, brake /** * Toggle / Switch / Blink the state of the LED. * Count the number of times the LED was turned ON. * We have quite some duplicate code here; this is not ideal and could be solved * using more 'advanced' concepts such as arrays and enums. * However, this is outside the scope of this course for now. */ void ToggleLed() { switch (led_blink_id) { case 0: { // LED 0 to toggle and count: led_0 = not led_0; A.speed(0.5) == 0.5; //If speed is 0, the motor doensn't rotate. B.speed(0) == 0; if (led_0 == kLedOn) { num_turned_on_0++; } // LEDs to turn off: led_1 = not kLedOn; break; } case 1: { // LED 1 to toggle and count: led_1 = not led_1; A.speed(0) == 0; //If speed is 0, the motor doensn't rotate. B.speed(0.5) == 0.5; if (led_1 == kLedOn) { num_turned_on_1++; } // LEDs to turn off: led_0 = not kLedOn; break; } } } /** * Print the number of times each LED was turned on through serial communication */ void PrintSerial() { pc.printf("*Status*\r\n\tn_r = %d\r\n\tn_g = %d\r\n\tn_b = %d\r\n\r\n", num_turned_on_0, num_turned_on_1); } /** * Switch the led id that blinks * led_blink_id goes from 0 -> 1 -> 2 -> 0 -> ... * @ensure led_blink_id = ++led_blink_id % kNumStates */ void SwitchLedColor() { led_blink_id++; if (led_blink_id>=kNumLeds) { // could also use modulo ('%') operator led_blink_id = 0; } } /** * Main loop. */ int main() { // Serial comm baud rate pc.baud(SERIAL_BAUD); pc.printf("\r\n**RESET**\r\n"); // Turn off all LEDs initially led_0 = not kLedOn; led_1 = not kLedOn; // Create ticker and attach LED toggle function Ticker tick_toggle_led; tick_toggle_led.attach(&ToggleLed,kTimeLedToggle); // Create ticker and attach Print function Ticker tick_print_serial; tick_print_serial.attach(&PrintSerial,kTimePrintSerial); // Create interrupt and attach switch function InterruptIn sw2(SW2); sw2.fall(&SwitchLedColor); while (true); }