Other Arduino Codes and Videos by Robojax

Robojax Touch Counter V3 using TM1637 4 digits LED display Robojax.com

Robojax Touch Counter V3 using TM1637 4 digits LED display

This Arduino code make simple touch counter. Every time touch module TTP223/TTP223B is touched, the counter number increases and displays on the LED display TM1637 and on serial monitor in Arduino by pressing Ctrl+Shift+M on your PC. There is a reset button which you can reset the counting at any time.

TTP223 or TTP223B module with a single push button is used to make this counter. Any Arduino boards can be used.

Fig. 1 Wiring of Robojax Touch Counter V3

Resources for this sketch


 /*
 * This is Arduino touch counter V3 using TTP223/TTP223B and TM1637 seven-segment LED Display
 * this program will function as counter. Every time the touch module is touch
 * the counter increments +1 to the counter. The count number is displayed on TM1637 display
 * We have got a reset button to restart the counting from zero.
 * 
 * Watch video instruction for this video:https://youtu.be/VzH9iEqrm0E
 * 
 * Written by Ahmad Shamshiri on Sunday 28th of October at 10:33 in Ajax, Ontario, Canada
 * Get this code from Robojax.com
 * 
 * This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.* 
 * This code has been download from Robojax.com
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

//***** beginning of TM1637 Display
#include <Arduino.h>
#include <TM1637Display.h>
// Module connection pins (Digital Pins)
#define CLK 10 // clock pin
#define DIO 11 // data in-out pin

// The amount of time (in milliseconds) between readings
#define TEST_DELAY   300
TM1637Display display(CLK, DIO);
uint8_t blank[] = { 0x0, 0x0, 0x0, 0x0 };// data to clear the screen

//***** end of TM1637 Display

const int touchPin = 2;// the input pin where touch sensor is connected
const int resetPin = 12;// the input pin for reset button
const int touchDelay = 500;//millisecond delay between each touch

int count=0;// variable holding the count number

void setup() {
 // Robojax.com Touch counter 20181029
    
  Serial.begin(9600);// initialize serial monitor with 9600 baud
  Serial.println("Robojax Touch Counter V3");  
  pinMode(touchPin,INPUT);// define a pin for touch module
  pinMode(resetPin,INPUT_PULLUP);// define a pin for reset button
  // see video ( link in the video description) on using PULLUP

  display.setBrightness(0x0f);// set brightness of display  
  uint8_t data8888[] = { 0xff, 0xff, 0xff, 0xff };  // all segments show
  display.setSegments(data8888); // display 8888 on display for test 
  delay(3000);// give time to user to read the display at the beginning
  display.setSegments(blank); // clear the screen from previous values 
  display.showNumberDec(0);// display zero at the belonging

  
  // Robojax.com Touch counter 20181029        
}

void loop() {
  // Robojax.com Touch counter 20181029

  int touchValue = digitalRead(touchPin);// read touchPin and store it in touchValue

  // if touchValue is HIGH
  if(touchValue == HIGH)
  {
      count++;// increment the count   
      
      display.setSegments(blank); // clear the screen from previous values   
      display.showNumberDec(count);// display the count 
   
      Serial.print("Touched ");//print the information
      Serial.print(count);//print count
      Serial.println(" times.");        
    delay(touchDelay);// touch delay time
  }


      
   // if reset switch is pushed
   if(digitalRead(resetPin) == LOW)
   {
   
    count =0;// reset the counter;
      Serial.println("Counter Resetted.");//print the information
      display.setSegments(blank); // clear the screen from previous values   
      display.showNumberDec(count);// display the count 
    
   }

  // Robojax.com Touch counter 20181029
}