103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
#ifndef _OBP60FUNCTIONS_H
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#define _OBP60FUNCTIONS_H
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#include <Arduino.h>
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#include "OBP60Hardware.h"
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// Global vars
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// Routine for TTP229-BSF (!!! IC use not a I2C bus !!!)
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//
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// 8 Key Mode
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//
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// Key number {0, 1, 2, 3, 4, 5, 6, 7, 8}
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// Scan code {0, 8, 7, 1, 6, 2, 5, 3, 4}
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int keyposition[9] = {0, 3, 5, 7, 8, 6, 4, 2, 1}; // Position of key in raw data, 0 = nothing touched
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int keypad[9]; // Raw data array from TTP229
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int key; // Value of key [0|1], 0 = touched, 1 = not touched
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int keycode = 0; // Keycode of pressed key [0...8], 0 = nothing touched
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String keystatus = "0"; // Status of key (0 = processed, 1s...8s, 1l...8l, left, right unprocessed)
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int keycodeold;
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int swipedelay = 500; // Delay after swipe in [ms]
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int keydelay = 500; // Delay after key pressed in [ms]
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bool keylock = 0; // Key lock after pressed key is valid (repeat protection by conginous pressing)
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int repeatnum; // Actual number of key detections for a pressed key
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int shortpress = 5; // number of key detections after that the key is valid (n * 40ms) for short pessing
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int longpress = 25; // number of key detections after that the key is valid (n * 40ms) for long pessing
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int swipedir = 0; // Swipe direction 0 = nothing, -1 = left, +1 = right
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void readKeypad() {
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noInterrupts();
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pinMode(TTP_SDO, INPUT);
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pinMode(TTP_SCL, OUTPUT);
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keycode = 0;
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// Read key code from raw data
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for (int i = 0; i < 9; i++) {
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digitalWrite(TTP_SCL, LOW);
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delay(1); // 2ms clock
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keypad[i] = digitalRead(TTP_SDO);
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if(i > 0){
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// Invert keypad
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if(keypad[i] == 1){
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key = 0;
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}
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else{
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key = 1;
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}
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keycode += key * i;
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}
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digitalWrite(TTP_SCL, HIGH);
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delay(1);
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}
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// Remapping keycode
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keycode = keyposition[keycode];
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// Read repeat number
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if(keycode == keycodeold){
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repeatnum ++;
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}
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/*
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// Detect swipe right
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if (keycode > 0 && keycodeold > 0 && keycode > keycodeold && keycode != keycodeold && keylock == false){
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keylock = true;
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swipedir = 1;
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keystatus = "right";
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buzzer(TONE3 buzPower, 100);
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delay(swipedelay);
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}
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// Detect swipe left
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if (keycode > 0 && keycodeold > 0 && keycode < keycodeold && keycode != keycodeold && keylock == false){
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keylock = true;
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swipedir = -1;
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keystatus = "left";
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buzzer(TONE3, buzPower, 100);
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delay(swipedelay);
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}
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*/
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// Detect short perssed keynumber
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if (keycode > 0 && repeatnum >= shortpress && repeatnum < longpress && keycode == keycodeold && keylock == false){
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keylock = true;
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keystatus = String(keycode) + "s";
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buzzer(TONE4, buzPower, 100);
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delay(keydelay);
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}
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/*
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// Detect long perssed keynumber
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if (keycode > 0 && repeatnum >= longpress && keylock == false){
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keystatus = String(keycode) + "l";
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buzzer(4000, 20, 200);
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keylock = true;
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}
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*/
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// Reset keylock after release
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if (keycode == 0 && keycodeold == 0){
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keylock = false;
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repeatnum = 0;
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}
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// Copy keycode
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keycodeold = keycode;
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interrupts();
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}
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#endif |