Charles Tritt / Mbed OS Serial2RGB_21_v5

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main.cpp@1:fdb8ecdf954f, 2017-03-15 (annotated)

Committer:
CSTritt
Date:
Wed Mar 15 01:54:31 2017 +0000
Revision:
1:fdb8ecdf954f
Parent:
0:8d318218bac1
Child:
2:f91fc3b8d8f7
Demonstrates serial communications and digital output. Initial version.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mab5449 0:8d318218bac1 1 #include "mbed.h"
CSTritt 1:fdb8ecdf954f 2 /*
CSTritt 1:fdb8ecdf954f 3 Serial2RGB main by C. S. Tritt, Last revised 3/14/17 (v. 1.0)
CSTritt 1:fdb8ecdf954f 4 Toggles RGB LED junctions in response to serial input. Uses "unbuffered"
CSTritt 1:fdb8ecdf954f 5 reads (Enter, CR/LF not required).
CSTritt 1:fdb8ecdf954f 6 */
CSTritt 1:fdb8ecdf954f 7 DigitalOut RedLED(D9); // Physically same as Arduino Digital pin 9.
CSTritt 1:fdb8ecdf954f 8 DigitalOut GrnLED(D10); // Physically same as Arduino Digital pin 10.
CSTritt 1:fdb8ecdf954f 9 DigitalOut BluLED(D11); // Physically same as Arduino Digital pin 11.
CSTritt 1:fdb8ecdf954f 10
CSTritt 1:fdb8ecdf954f 11 Serial pc(USBTX, USBRX); // Default settings are 9600 Baud, 8-N-1.
mab5449 0:8d318218bac1 12
mab5449 0:8d318218bac1 13 int main() {
CSTritt 1:fdb8ecdf954f 14
CSTritt 1:fdb8ecdf954f 15 RedLED = 0;
CSTritt 1:fdb8ecdf954f 16 GrnLED = 0;
CSTritt 1:fdb8ecdf954f 17 BluLED = 0;
CSTritt 1:fdb8ecdf954f 18 char letter;
CSTritt 1:fdb8ecdf954f 19
mab5449 0:8d318218bac1 20 while(1) {
CSTritt 1:fdb8ecdf954f 21 if (pc.readable()) {
CSTritt 1:fdb8ecdf954f 22 letter = pc.getc();
CSTritt 1:fdb8ecdf954f 23 pc.putc(letter);
CSTritt 1:fdb8ecdf954f 24 if (letter == 'r') {
CSTritt 1:fdb8ecdf954f 25 RedLED = !RedLED;
CSTritt 1:fdb8ecdf954f 26 }
CSTritt 1:fdb8ecdf954f 27 else if (letter == 'g') {
CSTritt 1:fdb8ecdf954f 28 GrnLED = !GrnLED;
CSTritt 1:fdb8ecdf954f 29 }
CSTritt 1:fdb8ecdf954f 30 else if (letter == 'b') {
CSTritt 1:fdb8ecdf954f 31 BluLED = !BluLED;
CSTritt 1:fdb8ecdf954f 32 }
mab5449 0:8d318218bac1 33 }
mab5449 0:8d318218bac1 34 }
mab5449 0:8d318218bac1 35 }