mr happy / Mbed 2 deprecated flashing_leds

Reads the voltage from Pin18 (out) based on the output from Pin(20) i.e a self checking voltmeter.

main.cpp@1:a4c99d145ce3, 2011-02-04 (annotated)

Committer:
mrhappy
Date:
Fri Feb 04 23:08:04 2011 +0000
Revision:
1:a4c99d145ce3
Parent:
0:7c659fdad918 
V0.1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mrhappy 0:7c659fdad918 1 #include "mbed.h"
mrhappy 0:7c659fdad918 2
mrhappy 0:7c659fdad918 3 AnalogIn ain(p20);
mrhappy 1:a4c99d145ce3 4 AnalogOut aout(p18);
mrhappy 1:a4c99d145ce3 5
mrhappy 0:7c659fdad918 6 DigitalOut led1(LED1);
mrhappy 0:7c659fdad918 7 DigitalOut led2(LED2);
mrhappy 0:7c659fdad918 8 DigitalOut led3(LED3);
mrhappy 0:7c659fdad918 9 DigitalOut led4(LED4);
mrhappy 0:7c659fdad918 10
mrhappy 0:7c659fdad918 11 // use pin 20 and GND to display a binary read out on the lights
mrhappy 0:7c659fdad918 12 // of the voltage across the pins.
mrhappy 0:7c659fdad918 13 // did not validate this in anyway.
mrhappy 0:7c659fdad918 14 // mrhappy
mrhappy 0:7c659fdad918 15
mrhappy 0:7c659fdad918 16 void bindisplay(int i){
mrhappy 0:7c659fdad918 17
mrhappy 0:7c659fdad918 18 // based on Kohei Matsumura code.
mrhappy 1:a4c99d145ce3 19 wait(0.5);
mrhappy 0:7c659fdad918 20 led1 = i & 0x01;
mrhappy 0:7c659fdad918 21 led2 = i>>1 & 0x01;
mrhappy 0:7c659fdad918 22 led3 = i>>2 & 0x01;
mrhappy 0:7c659fdad918 23 led4 = i>>3 & 0x01;
mrhappy 0:7c659fdad918 24
mrhappy 0:7c659fdad918 25 }
mrhappy 0:7c659fdad918 26
mrhappy 0:7c659fdad918 27 int main() {
mrhappy 0:7c659fdad918 28
mrhappy 1:a4c99d145ce3 29 float vout = 0;
mrhappy 1:a4c99d145ce3 30
mrhappy 1:a4c99d145ce3 31 while(1)
mrhappy 1:a4c99d145ce3 32 {
mrhappy 1:a4c99d145ce3 33 bindisplay( ain * 0xffff );
mrhappy 0:7c659fdad918 34
mrhappy 1:a4c99d145ce3 35 vout += 0.1;
mrhappy 1:a4c99d145ce3 36 aout = vout;
mrhappy 1:a4c99d145ce3 37
mrhappy 1:a4c99d145ce3 38 if (vout > 1) vout = 0;
mrhappy 0:7c659fdad918 39 }
mrhappy 0:7c659fdad918 40 }