IDD Fall 2015 / Mbed 2 deprecated idd_hw2_jkolb_accel_tap

Mutli-tap using accelerometer data.

Dependencies:   DebounceIn MMA8451Q USBDevice mbed

main.cpp@1:0014f5540da0, 2015-09-14 (annotated)

Committer:
jkolb
Date:
Mon Sep 14 17:30:16 2015 +0000
Revision:
1:0014f5540da0
Parent:
0:053edc46badd 
Final version of accelerometer-based multi-tap text input.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jkolb 0:053edc46badd 1 #include "mbed.h"
jkolb 0:053edc46badd 2 #include "DebounceIn.h"
jkolb 0:053edc46badd 3 #include "MMA8451Q.h"
jkolb 0:053edc46badd 4 #include "USBKeyboard.h"
jkolb 0:053edc46badd 5
jkolb 0:053edc46badd 6 USBKeyboard keyboard;
jkolb 0:053edc46badd 7 char leftTable[] = {'Q', 'A', 'D', 'G', 'J', 'M', 'P', 'T', 'W', '\b'};
jkolb 0:053edc46badd 8 char centerTable[] = {'Z', 'B', 'E', 'H', 'K', 'N', 'R', 'U', 'X', ' '};
jkolb 0:053edc46badd 9 char rightTable[] = {'Q', 'C', 'F', 'I', 'L', 'O', 'S', 'V', 'Y', '\b'};
jkolb 0:053edc46badd 10
jkolb 0:053edc46badd 11 DebounceIn buttons[] = {
jkolb 0:053edc46badd 12 DebounceIn(D2),
jkolb 0:053edc46badd 13 DebounceIn(D3),
jkolb 0:053edc46badd 14 DebounceIn(D4),
jkolb 0:053edc46badd 15 DebounceIn(D5),
jkolb 0:053edc46badd 16 DebounceIn(D6),
jkolb 0:053edc46badd 17 DebounceIn(D7),
jkolb 0:053edc46badd 18 DebounceIn(D8),
jkolb 0:053edc46badd 19 DebounceIn(D9),
jkolb 0:053edc46badd 20 DebounceIn(D10),
jkolb 0:053edc46badd 21 DebounceIn(D11)
jkolb 0:053edc46badd 22 };
jkolb 0:053edc46badd 23 DigitalOut red(LED_RED);
jkolb 0:053edc46badd 24 DigitalOut blue(LED_BLUE);
jkolb 0:053edc46badd 25 DigitalOut green(LED_GREEN);
jkolb 0:053edc46badd 26
jkolb 0:053edc46badd 27 MMA8451Q acc(PTE25, PTE24, (0x1d << 1));
jkolb 0:053edc46badd 28
jkolb 0:053edc46badd 29 int main() {
jkolb 0:053edc46badd 30 red = 1;
jkolb 0:053edc46badd 31 blue = 1;
jkolb 0:053edc46badd 32 green = 1;
jkolb 0:053edc46badd 33 for (int i = 0; i < 10; i++) {
jkolb 0:053edc46badd 34 buttons[i].mode(PullUp);
jkolb 0:053edc46badd 35 }
jkolb 0:053edc46badd 36
jkolb 0:053edc46badd 37 while(1) {
jkolb 0:053edc46badd 38 for (int i = 0; i < 10; i++) {
jkolb 0:053edc46badd 39 if (buttons[i]) {
jkolb 0:053edc46badd 40 int yAccel = acc.getAccY();
jkolb 0:053edc46badd 41 if (yAccel < -2000) {
jkolb 0:053edc46badd 42 red = 0;
jkolb 0:053edc46badd 43 keyboard.keyCode(leftTable[i]);
jkolb 0:053edc46badd 44 } else if (yAccel > 2000) {
jkolb 0:053edc46badd 45 green = 0;
jkolb 0:053edc46badd 46 keyboard.keyCode(rightTable[i]);
jkolb 0:053edc46badd 47 } else {
jkolb 0:053edc46badd 48 blue = 0;
jkolb 0:053edc46badd 49 keyboard.keyCode(centerTable[i]);
jkolb 0:053edc46badd 50 }
jkolb 0:053edc46badd 51 }
jkolb 0:053edc46badd 52 }
jkolb 0:053edc46badd 53 wait(0.2);
jkolb 0:053edc46badd 54 red = 1;
jkolb 0:053edc46badd 55 blue = 1;
jkolb 0:053edc46badd 56 green = 1;
jkolb 0:053edc46badd 57 }
jkolb 0:053edc46badd 58 }