Eleanor Hulm / Mbed 2 deprecated EMB_LAB3

Controlling onboard RGB LED with Pulse-Width Modulation

Dependencies:   mbed C12832_lcd

EMB_Lab3_RGB.cpp@1:31823a0dc268, 2019-08-17 (annotated)

Committer:
hulmpants
Date:
Sat Aug 17 09:43:21 2019 +0000
Revision:
1:31823a0dc268
Embedded Systems Laboratory 3; Controlling RGB LED with Pulse-Width Modulation;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hulmpants 1:31823a0dc268 1 // IT Tralee Mechatronics: Embedded Systems LAB#3
hulmpants 1:31823a0dc268 2 // Controlling RGB using PWM
hulmpants 1:31823a0dc268 3
hulmpants 1:31823a0dc268 4 #include "mbed.h"
hulmpants 1:31823a0dc268 5 #include "C12832_lcd.h"
hulmpants 1:31823a0dc268 6
hulmpants 1:31823a0dc268 7 C12832_LCD lcd;
hulmpants 1:31823a0dc268 8 PwmOut r (p23);
hulmpants 1:31823a0dc268 9 PwmOut g (p24);
hulmpants 1:31823a0dc268 10 PwmOut b (p25);
hulmpants 1:31823a0dc268 11 AnalogIn pot1(p19); // pot 1 = red
hulmpants 1:31823a0dc268 12 AnalogIn pot2(p20); // pot 2 = green
hulmpants 1:31823a0dc268 13 DigitalIn center(p14); // joystick cent = blue
hulmpants 1:31823a0dc268 14
hulmpants 1:31823a0dc268 15 int main() {
hulmpants 1:31823a0dc268 16 while(1) {
hulmpants 1:31823a0dc268 17 r = 1 - pot1; // range=0-1 / 1=max red / levels varied by changing pot
hulmpants 1:31823a0dc268 18 g = 1 - pot2;
hulmpants 1:31823a0dc268 19 b = 1 - center;
hulmpants 1:31823a0dc268 20 lcd.cls(); // clear LCD
hulmpants 1:31823a0dc268 21 lcd.locate(0,0); // location
hulmpants 1:31823a0dc268 22 lcd.printf("Fun RGB Rainbow Show :) \n \r");
hulmpants 1:31823a0dc268 23 lcd.locate(0,8);
hulmpants 1:31823a0dc268 24 lcd.printf("Pot 1 = %.2f", (float)pot1); // print pot value
hulmpants 1:31823a0dc268 25 lcd.locate(0,16);
hulmpants 1:31823a0dc268 26 lcd.printf("Pot 2 = %.2f", (float)pot2); }
hulmpants 1:31823a0dc268 27 }