Projectgroep 20 Biorobotics / Mbed 2 deprecated EMG

Script voor het weergeven van 1 EMG signaal met behulp van een OLIMEX shield. Let hierbij goed op dat je de juiste pinnetjes op het OLIMEX shield verbonden hebt, in dit geval A0 als uitgang. Verder maken we gebruik van 3,3 Volt!

Dependencies:   HIDScope mbed

Fork of EMG by Tom Tom

main.cpp@16:9f7797ffd0fb, 2015-09-21 (annotated)

Committer:
tomlankhorst
Date:
Mon Sep 21 17:49:26 2015 +0000
Revision:
16:9f7797ffd0fb
Parent:
15:0da764eea774
Child:
18:21d8e7a81cf5
Simplification

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vsluiter 0:32bb76391d89 1 #include "mbed.h"
vsluiter 11:ce72ec658a95 2 #include "HIDScope.h"
vsluiter 0:32bb76391d89 3
vsluiter 4:8b298dfada81 4 //Define objects
tomlankhorst 14:f83354387756 5 AnalogIn emg(A0); //Analog input
tomlankhorst 14:f83354387756 6 Ticker sample_timer;
tomlankhorst 14:f83354387756 7 HIDScope scope(1);
vsluiter 2:e314bb3b2d99 8
tomlankhorst 14:f83354387756 9 /** Sample function
tomlankhorst 14:f83354387756 10 * this function samples the emg and sends it to HIDScope
tomlankhorst 14:f83354387756 11 **/
tomlankhorst 14:f83354387756 12 void sample()
vsluiter 2:e314bb3b2d99 13 {
tomlankhorst 14:f83354387756 14 /* First, sample the EMG using the 'read' method of the 'AnalogIn' variable named 'emg' */
tomlankhorst 14:f83354387756 15 double emg_value = emg.read();
tomlankhorst 14:f83354387756 16 /* Second, set the sampled emg value in channel zero (the first channel) in the 'HIDScope' variable named 'scope' */
vsluiter 11:ce72ec658a95 17 scope.set(0,emg_value);
tomlankhorst 16:9f7797ffd0fb 18 /* Repeat the step above if required for more channels (channel 0 up to 5 = 6 channels) */
tomlankhorst 14:f83354387756 19 /* Finally, send all channels to the PC at once */
vsluiter 11:ce72ec658a95 20 scope.send();
vsluiter 2:e314bb3b2d99 21 }
vsluiter 0:32bb76391d89 22
vsluiter 0:32bb76391d89 23 int main()
vsluiter 0:32bb76391d89 24 {
tomlankhorst 14:f83354387756 25 /**Attach the 'sample' function to the timer 'sample_timer'.
tomlankhorst 14:f83354387756 26 * this ensures that 'sample' is executed every... 0.002 seconds
vsluiter 4:8b298dfada81 27 */
tomlankhorst 14:f83354387756 28 sample_timer.attach(&sample, 0.002);
tomlankhorst 15:0da764eea774 29
tomlankhorst 14:f83354387756 30 /*empty loop, sample() is executed periodically*/
tomlankhorst 15:0da764eea774 31 while(1) {}
vsluiter 0:32bb76391d89 32 }