Arduino Adjustable Countdown Timer with 7Segment Display

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

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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)
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
}

 

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Schematics

Schematics and circuit diagrams

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Proteus Simulation

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Code

 

icon Countdown_Timer_With_7Segment-main.zip 2.96MB Download(23)

The article was first published in hackster, September 7, 2021

cr: https://www.hackster.io/embeddedlab786/arduino-adjustable-countdown-timer-with-7segment-display-15488a

author: Muhammad Ansar

License
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