ObjectFollower
Dependencies: TPixy-Interface
Fork of PlayBack by
ui.cpp
- Committer:
- asobhy
- Date:
- 2018-02-01
- Revision:
- 0:a355e511bc5d
- Child:
- 1:3e9684e81312
File content as of revision 0:a355e511bc5d:
#include "mbed.h" #include "WatchdogThread.h" #include "ui.h" Serial bluetooth(p9,p10); // Define the bluetooth channel and IO pins Serial pc(USBTX, USBRX); // Pins (tx, rx) for PC serial channel Mutex setpoint_mutex; // speed int setpoint; // variable to store character recieved from terminal char x; extern uint16_t dPosition, dTime; uint16_t position; /****************************************************************************** A function to test blutooth communication ******************************************************************************/ void twoTerminalsTest() { if (pc.readable()) { // If a key is pressed on the pc channel x=pc.getc(); // read the character and send it to both the bluetooth.putc(x); // bluetooth channel and the pc channel for pc.putc(x); // display. } if (bluetooth.readable()) { x=bluetooth.getc(); // If there’s a keypress on the bluetooth pc.putc(x); // channel, read the character and send it to bluetooth.putc(x); // both the pc channel and the bluetooth } // channel for display } /****************************************************************************** A function to Display startup Messsage ******************************************************************************/ void displayStartupMsg() { pc.printf("\r\n************************************"); pc.printf("\r\n**** DC Motor Control using PWM ****"); pc.printf("\r\n************************************"); pc.printf("\r\n-Enter r to reset the watchdog timer"); pc.printf("\r\n-press w to increase motor speed"); pc.printf("\r\n-press s to decrease motor speed"); } /****************************************************************************** Console interface ******************************************************************************/ void consoleUI(void) { if (pc.readable()) { x = pc.getc(); // if input from console is the letter 'r' if(x == 'r') { // reset watchdog timer WatchdogReset(); pc.printf("\r\nWatchdog has been reset"); } // if w is pressed increase the speed // by incrementing u else if(x == 'w') { // convert to integer if(setpoint<=10000) { setpoint_mutex.lock(); setpoint = setpoint + SPEED_STEP; setpoint_mutex.unlock(); } // display speed pc.printf("\r\n %5d", setpoint); } // if s is pressed decrease the speed // by decrementing u else if(x == 's') { // convert to integer if(setpoint>-10000) { setpoint_mutex.lock(); setpoint = setpoint - SPEED_STEP; setpoint_mutex.unlock(); } // display speed pc.printf("\r\n %5d", setpoint); } // error wrong input else { pc.printf("\r\nwrong input please enter \'w\' to increase the speed, \'s\' to reduce it or move in the opposite direction and \'r\' to reset the watchdog"); } } position += dPosition; pc.printf("\r\nposition: %d, dPosition: %d, dTime: %d", position, dPosition, dTime); }