MPR121 demo code for 12 key Sparkfun touch keypad - sends key number to LEDs. Based on Sparkfun MPR121 code ported to mbed by Anthony Buckton
Fork of MPR121_Demo by
Revision 1:b77d4eaa81d1, committed 2016-03-17
- Comitter:
- hcha30
- Date:
- Thu Mar 17 16:57:27 2016 +0000
- Parent:
- 0:e09703934ff4
- Commit message:
- 4180 lab4 big fish game
Changed in this revision
| main.cpp | Show diff for this revision Revisions of this file |
--- a/main.cpp Wed Mar 16 01:49:13 2011 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,125 +0,0 @@
-/*
-Copyright (c) 2011 Anthony Buckton (abuckton [at] blackink [dot} net {dot} au)
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-*/
-
-#include <mbed.h>
-#include <string>
-#include <list>
-
-#include <mpr121.h>
-
-DigitalOut led1(LED1);
-DigitalOut led2(LED2);
-DigitalOut led3(LED3);
-DigitalOut led4(LED4);
-
-// Create the interrupt receiver object on pin 26
-InterruptIn interrupt(p26);
-
-// Setup the Serial to the PC for debugging
-Serial pc(USBTX, USBRX);
-
-// Setup the i2c bus on pins 28 and 27
-I2C i2c(p9, p10);
-
-// Setup the Mpr121:
-// constructor(i2c object, i2c address of the mpr121)
-Mpr121 mpr121(&i2c, Mpr121::ADD_VSS);
-
-void fallInterrupt() {
- int key_code=0;
- int i=0;
- int value=mpr121.read(0x00);
- value +=mpr121.read(0x01)<<8;
- // LED demo mod by J. Hamblen
- //pc.printf("MPR value: %x \r\n", value);
- i=0;
- // puts key number out to LEDs for demo
- for (i=0; i<12; i++) {
- if (((value>>i)&0x01)==1) key_code=i+1;
- }
- led4=key_code & 0x01;
- led3=(key_code>>1) & 0x01;
- led2=(key_code>>2) & 0x01;
- led1=(key_code>>3) & 0x01;
-}
-int main() {
-
- pc.printf("\nHello from the mbed & mpr121\n\r");
-
- unsigned char dataArray[2];
- int key;
- int count = 0;
-
- pc.printf("Test 1: read a value: \r\n");
- dataArray[0] = mpr121.read(AFE_CFG);
- pc.printf("Read value=%x\r\n\n",dataArray[0]);
-
- pc.printf("Test 2: read a value: \r\n");
- dataArray[0] = mpr121.read(0x5d);
- pc.printf("Read value=%x\r\n\n",dataArray[0]);
-
- pc.printf("Test 3: write & read a value: \r\n");
- mpr121.read(ELE0_T);
- mpr121.write(ELE0_T,0x22);
- dataArray[0] = mpr121.read(ELE0_T);
- pc.printf("Read value=%x\r\n\n",dataArray[0]);
-
- pc.printf("Test 4: Write many values: \r\n");
- unsigned char data[] = {0x1,0x3,0x5,0x9,0x15,0x25,0x41};
- mpr121.writeMany(0x42,data,7);
-
- // Now read them back ..
- key = 0x42;
- count = 0;
- while (count < 7) {
- char result = mpr121.read(key);
- key++;
- count++;
- pc.printf("Read value: '%x'=%x\n\r",key,result);
- }
-
- pc.printf("Test 5: Read Electrodes:\r\n");
- key = ELE0_T;
- count = 0;
- while (count < 24) {
- char result = mpr121.read(key);
- pc.printf("Read key:%x value:%x\n\r",key,result);
- key++;
- count++;
- }
- pc.printf("--------- \r\n\n");
-
- // mpr121.setProximityMode(true);
-
- pc.printf("ELE_CFG=%x", mpr121.read(ELE_CFG));
-
- interrupt.fall(&fallInterrupt);
- interrupt.mode(PullUp);
-
- while (1) {
- wait(5);
- pc.printf(".");
- }
-}
-
-
-
