Arduino Adjustable Countdown Timer with 7Segment Display

RiverTrue Sep 17.2021

0 10002 Hard

How To Make Arduino Adjustable Countdown Timer with 7Segment Display | without RTC Countdown Timer

Things used in this project

Hardware components

HARDWARE LIST

1 Arduino UNO

1 SparkFun 7-Segment Serial Display - Red

3 DFRobot Gravity:Digital Push Button (Yellow)

Link

1 Relay Module (Generic)

1 Male/Male Jumper Wires

1 Male/Female Jumper Wires

1 LED Light Bulb, Frosted GLS

1 Buzzer

1 Test Accessory, AC Power Adaptor

Software apps and online services

Arduino IDE

Story

How To Make Arduino Adjustable Countdown Timer with 7Segment Display | without RTC Countdown Timer

Custom parts and enclosures

Components

Components Details () {
Solderless Breadboard,
Arduino Uno,
4 Digit Multiplexing 7Segment Display,
Push Button x 3,
Buzzer,
1-Channel 5v Relay Module,
Male to Male Jumper Wires,
Male to Female jumper Wires,
Bulb Holder,
220v LED Bulb,
5v 2Amp Power Adapter
}