Nathan Yonkee / Mbed OS Seeed_Grove_I2C_Touch_Example

3 key touch panel from Seeed

Dependencies:   MPR121

Fork of Seeed_Grove_I2C_Touch_Example by Seeed

Files at this revision

API Documentation at this revision

Revision 9:31065d903a2b, committed 2017-08-03

Comitter:
Nathan Yonkee
Date:
Thu Aug 03 06:23:18 2017 -0600
Parent:
8:59e43faffe44
Commit message:
detect button presses by changing LED blinking rate instead of serial printing

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file 
diff -r 59e43faffe44 -r 31065d903a2b main.cpp
--- a/main.cpp	Sun Jul 02 16:37:58 2017 -0600
+++ b/main.cpp	Thu Aug 03 06:23:18 2017 -0600
@@ -3,25 +3,25 @@
 #include "MPR121.h"
 
 I2C i2c(PA_10, PA_9);
-MPR121 touch_pad(i2c, MPR121::ADDR_VSS);
-DigitalOut led(PB_3);
+MPR121 touch_pad(i2c);
+DigitalOut led(PB_4);
 Serial ser(SERIAL_TX, SERIAL_RX);
 
 int main()
 {
-    uint32_t button_val = 20;
+    led = 1;
+    int waitTime = 200;
 
     /* touch_pad.enable(); */
 
     while(1)
     {
         /* button_val = touch_pad.buttonPressed(); */
-        /* ser.printf("button = 0x%04x\n", button_val); */
-        ser.printf("trying\n");
-    button_val = touch_pad.isPressed();
-    ser.printf("any button pressed is (bool) %i\n",button_val);
-    button_val = touch_pad.buttonPressed();
-    ser.printf("button_val is %i\n",button_val);
-        Thread::wait(2000);
+        led = !led;
+        int whichButton = touch_pad.buttonPressed();
+        if(whichButton == 1) waitTime = 100;
+        if(whichButton == 2) waitTime = 500;
+        if(whichButton == 4) waitTime = 2000;
+        Thread::wait(waitTime);
     }
 }