MSOE EE2905 / Mbed 2 deprecated AnalogOutDemo

Demonstrates AnalogOut with a wave taken from an array of data, as well as an AnalogIn pass-through.

Dependencies:   mbed

main.cpp@1:12830e864576, 2018-10-22 (annotated)

Committer:
rossatmsoe
Date:
Mon Oct 22 16:07:18 2018 +0000
Revision:
1:12830e864576
Parent:
0:41657a1f55b7 
Removed extraneous data from .h file

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rossatmsoe 0:41657a1f55b7 1 #include "mbed.h"
rossatmsoe 0:41657a1f55b7 2
rossatmsoe 0:41657a1f55b7 3 /* This program creates two analog outputs:
rossatmsoe 0:41657a1f55b7 4 A staircase wave on A2
rossatmsoe 0:41657a1f55b7 5 Voltage representing light level on D13
rossatmsoe 0:41657a1f55b7 6
rossatmsoe 0:41657a1f55b7 7 It is assumed that the photoresistor is connected to A0
rossatmsoe 0:41657a1f55b7 8 in the usual manner.
rossatmsoe 0:41657a1f55b7 9 */
rossatmsoe 0:41657a1f55b7 10
rossatmsoe 0:41657a1f55b7 11 AnalogIn light(A0);
rossatmsoe 0:41657a1f55b7 12
rossatmsoe 0:41657a1f55b7 13 // Our board only has two analog outputs, on A2 and D13.
rossatmsoe 0:41657a1f55b7 14 AnalogOut my_output1(A2);
rossatmsoe 0:41657a1f55b7 15 AnalogOut my_output2(D13);
rossatmsoe 0:41657a1f55b7 16
rossatmsoe 0:41657a1f55b7 17 // Levels for the staircase wave.
rossatmsoe 0:41657a1f55b7 18 float wave_data[]= {0,.25,.5,.75,1,.75,.5,.25};
rossatmsoe 0:41657a1f55b7 19
rossatmsoe 0:41657a1f55b7 20 int length=8;
rossatmsoe 0:41657a1f55b7 21
rossatmsoe 0:41657a1f55b7 22 int main() {
rossatmsoe 0:41657a1f55b7 23
rossatmsoe 0:41657a1f55b7 24 while(1) {
rossatmsoe 0:41657a1f55b7 25
rossatmsoe 0:41657a1f55b7 26 // Go through the array to output the voltage levels.
rossatmsoe 0:41657a1f55b7 27 // Also pass the light level out to D13 (my_output2).
rossatmsoe 0:41657a1f55b7 28 // Change the level every 1 ms.
rossatmsoe 0:41657a1f55b7 29
rossatmsoe 0:41657a1f55b7 30 for(int k=0; k<length; k++) {
rossatmsoe 0:41657a1f55b7 31 my_output1 = wave_data[k];
rossatmsoe 0:41657a1f55b7 32 my_output2=light;
rossatmsoe 0:41657a1f55b7 33 wait_ms(1);
rossatmsoe 0:41657a1f55b7 34 }
rossatmsoe 0:41657a1f55b7 35 }
rossatmsoe 0:41657a1f55b7 36 }