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@18:21d8e7a81cf5, 2016-09-22 (annotated)

Committer:
tomlankhorst
Date:
Thu Sep 22 08:04:14 2016 +0000
Revision:
18:21d8e7a81cf5
Parent:
16:9f7797ffd0fb
Child:
19:2bf824669684
Updated HIDScope lib. ; Added blinking LED in sample fn.

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);
tomlankhorst 18:21d8e7a81cf5 8 DigitalOut led(LED1);
vsluiter 2:e314bb3b2d99 9
tomlankhorst 14:f83354387756 10 /** Sample function
tomlankhorst 14:f83354387756 11 * this function samples the emg and sends it to HIDScope
tomlankhorst 14:f83354387756 12 **/
tomlankhorst 14:f83354387756 13 void sample()
vsluiter 2:e314bb3b2d99 14 {
tomlankhorst 14:f83354387756 15 /* First, sample the EMG using the 'read' method of the 'AnalogIn' variable named 'emg' */
tomlankhorst 14:f83354387756 16 double emg_value = emg.read();
tomlankhorst 14:f83354387756 17 /* Second, set the sampled emg value in channel zero (the first channel) in the 'HIDScope' variable named 'scope' */
vsluiter 11:ce72ec658a95 18 scope.set(0,emg_value);
tomlankhorst 16:9f7797ffd0fb 19 /* Repeat the step above if required for more channels (channel 0 up to 5 = 6 channels) */
tomlankhorst 14:f83354387756 20 /* Finally, send all channels to the PC at once */
vsluiter 11:ce72ec658a95 21 scope.send();
tomlankhorst 18:21d8e7a81cf5 22 /* To indicate that the function is working, the LED is toggled */
tomlankhorst 18:21d8e7a81cf5 23 led = !led;
vsluiter 2:e314bb3b2d99 24 }
vsluiter 0:32bb76391d89 25
vsluiter 0:32bb76391d89 26 int main()
vsluiter 0:32bb76391d89 27 {
tomlankhorst 14:f83354387756 28 /**Attach the 'sample' function to the timer 'sample_timer'.
tomlankhorst 18:21d8e7a81cf5 29 * this ensures that 'sample' is executed every... 0.01 seconds
vsluiter 4:8b298dfada81 30 */
tomlankhorst 18:21d8e7a81cf5 31 sample_timer.attach(&sample, 0.01);
tomlankhorst 15:0da764eea774 32
tomlankhorst 14:f83354387756 33 /*empty loop, sample() is executed periodically*/
tomlankhorst 15:0da764eea774 34 while(1) {}
vsluiter 0:32bb76391d89 35 }