Published October 30, 2021 © GPL3+

Arduino Tea Bag Timer

Do you want to make a perfect tea? Checkout this project!

BeginnerFull instructions provided1,055

Things used in this project

Hardware components

Arduino Nano R3

SG90 Micro-servo motor

TM1637 Display

Hand tools and fabrication machines

Wood

Multitool, Screwdriver

Story

Today I want to show you how Arduino can help you to make a perfect Tea!

I always wanted to have the tea bag in the water for a specific time. However, I never do that because I forget to get the tea bag out of the water early enough to taste good.

This is why I invented the Arduino Tea Bag Timer!

Arduino Tea Bag Timer

What you have to do is to put your mug under the Tea Bag Timer, select the number of minutes you want the tea bag to be in the water, and then you double click to start.

At that point, the tea bag will gently dip in the water and stay in the water for the amount of minutes selected.

At the end of the timer, the tea bag will gently go up again and get out of the mug. This allows you to have a perfect tea without having to remind or check the watch.

As usual, if you like the project, put a thumbs up and subscribe to my channel. Source code and schematics are available for free use.

Code

Arduino Tea Bag Timer

/*
 * Carlo Stramaglia
 * https://www.youtube.com/c/CarloStramaglia
 * This is the Arduino Tea Bag Timer. 
 * Once you setup the time you want your tea to stay in the water, the arm will automatically dip and release the tea bag.
 * October 31st 2021
 */
 
#include <Servo.h>
#include <TM1637.h>
#include "OneButton.h"

Servo myservo;

int minutes=00;
int seconds=0;
int i=0;

// Display Pins configurations
// Pin 3 - > DIO
// Pin 2 - > CLK
TM1637 tm1637(2, 3);

// Push Button PIN definition
#define PIN_INPUT A2

OneButton button(PIN_INPUT, true);


void setup() {
  Serial.begin(115200);
  Serial.println("Arduino Tea Bag Timer sketch. Carlo Stramaglia https://www.youtube.com/c/CarloStramaglia");
  myservo.attach(9);
  myservo.write(90);
  tm1637.init();
  tm1637.setBrightness(5);
  button.attachClick(singleClick);
  button.attachDoubleClick(doubleClick);
  button.attachLongPressStart(longPressStart);
  tm1637.clearScreen();
  tm1637.colonOn();
  tm1637.display("0000");
  tm1637.colonOn();
  delay(100);  
}

void loop() {
  button.tick();
  delay (10);
}

void singleClick()
{
  Serial.println("x1");
  minutes++;
  Serial.println(minutes);
  if (minutes < 10)
      tm1637.display(minutes,1,0,1);
  else
      tm1637.display(minutes);
  delay(100);
} // singleClick Add minutes


void doubleClick()
{
  Serial.println("x2");
  if (minutes == 0) return;
  for (i=90;i>30;i--)
  {
    myservo.write(i);
    delay (100);
  }
  minutes--;
  for (minutes ; minutes >= 0; minutes--) {
        for (int seconds = 59; seconds >= 0; seconds--) {
            if (minutes < 10 && minutes >0)
              tm1637.display(seconds + minutes*100,1,0,1);
            else if (minutes == 0 && seconds >=10)
              tm1637.display(seconds + minutes*100,1,0,2);
            else if (minutes == 0 && seconds < 10)
              tm1637.display(seconds + minutes*100,1,0,3);
            else               
              tm1637.display(seconds + minutes*100); 
            tm1637.switchColon(); 
            delay(1000);
        }
    }
    for (i=30;i<90;i++)
    {
      myservo.write(i);
      delay (100);
    }
  tm1637.colonOn();
  tm1637.display("0000");
  minutes = 0;
  tm1637.colonOn();
  delay(100);  

} // doubleClick Timer Start

void longPressStart()
{
  Serial.println("long Press");
  minutes = 0;
  tm1637.colonOn();
  tm1637.display("0000");
  tm1637.colonOn();
  delay(100);  
} // longPressStart Timer Reset

Credits

cstram

16 projects • 23 followers

Passionate about IT, Electronics and DIY. Strong believer in Raspberry and Arduino devices. Experience in digital television and security.

Arduino Tea Bag Timer

Things used in this project

Hardware components

Hand tools and fabrication machines

Story

Schematics