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Electronic Count Down Timer with LED Segments

I need a simple cound down timer design.

It will consist of 5 + 2 + 2 +2 digits. DDDDD HH MM SS

See a simple mockup around it in attached picture.

* Design around Atmega328P processor (arduino compatible)

* Cheap simple 8 char LED segment. 20-30mm high. Choose the simplest and cheapest

* Built in RTC with backup battery, so time and counter does not reset when main power is removed

* 2-3 buttom 90 faced upwards to set time and handle the menu

* Function will be. Set current time and date, set the count down time in year and days. After set, counter will correct it

to days in total and then start counting down showing DDDDD HH MM SS.

* USB mini on the side for main power.

* Function to dim the led segmentw from very weak to very bright.

* PCB design in Eagle [url removed, login to view]

After completed project I get pcb design, component and software files.

I want you to test this and really guarantee it works before we finished our project.

Suggest we have a open chat with Q&A during the project.

Project duration 3-4weeks

Compétences : Arduino, Génie Électrique, Electronique, Design de produits, Développement de logiciel

Voir plus : led mini usb, led segments isis, led countdown timer flash, delphi usb count, actionscript count timer, lost series count timer, count timer flash, timer flash count, flash count countdown timer, count timer jpeg file, php timer count days, timer graphics count, animated count timer, flash count timer generator, mondrian olap total count, flash count timer

Concernant l'employeur :
( 4 commentaires ) LINKÖPING, Sweden

N° du projet : #13079914

Décerné à :


Hello dear I have experience in designing electronics circuits and can make your project. I will make your project practically on breadboard and will provide you circuit, code and PCB design along with gerber files. I Plus

2500 kr SEK en 10 jours
(18 Commentaires)

38 freelance ont fait une offre moyenne de 3425 kr pour ce travail


Hi Sir I am an expert electronics engineer with more than 8 years of experience in development of embedded systems I have read the details and I am sure I can do it for you Please review my profile and see the revie Plus

5000 kr SEK en 15 jours
(181 Commentaires)

Whatsapp: +92 321 6624970 I am an Electrical Engineer having specialization in Electronics and Control, teaching at Electrical Department FAST National University Pakistan. I am also persuing my MS degree in Electr Plus

3555 kr SEK en 3 jours
(229 Commentaires)

Hello, I am an Electronics and Embedded system developer. I have experience in Digital and Analog electronic design and Matlab.i have expertise in PCB design. Kindly check my profile. Reply me back and will discuss the Plus

4500 kr SEK en 10 jours
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4736 kr SEK en 10 jours
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Hello, Good Morning. We will design and prototype the required hardware. Please feel free to contact us. Best Regards, Shahbaz.

5000 kr SEK en 20 jours
(46 Commentaires)

Hello Dear, We are a team of experts with a cumulative experience of more than 50 years in the field of embedded systems and prototype development. I assure you the best solution for your work. Regards Ch

3555 kr SEK en 30 jours
(26 Commentaires)

Hiya. Nice project, a bit low budget. Definitely wrong part selection. I'd suggest using a cheap STM32F103, which has hardware RTC + battery backup, making parts list for this project basically just the MCU + po Plus

9922 kr SEK en 21 jours
(4 Commentaires)

I am an Electrical Engineering Masters degree student and I think that I will be able to fulfill your desired job since I have done IELTS and I have a good proficiency in English as well and I will do this job even in Plus

1611 kr SEK en 1 jour
(34 Commentaires)

Hello. Im designing different electronics devices, mostly based on avr, arm MCUs and boards with them like arduino, stm-discovery etc. (autopromotion^)) What is "arduino compatible"? Do you want to use arduino boa Plus

3998 kr SEK en 20 jours
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5000 kr SEK en 10 jours
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Hello. Do you want to have this device fully Arduino-compatible? (So USB connector will be used for uploading of the code) Or you will use external programmator, and the USB used for the power lines only? I can Plus

1900 kr SEK en 15 jours
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Hello I'll guide you and give you full help in all things in building your prototype from designing to manufacturing. I am Electrical Engineer and interested in your project. Please tell me about your time limits. Plus

2000 kr SEK en 18 jours
(16 Commentaires)

Hi, We are an Embedded Solution providers based in Surat, India. We develop and manufacture various Embedded/Power Electronics products. Following are the products we have designed and manufactured. All of our pr Plus

4444 kr SEK en 11 jours
(11 Commentaires)

Hi Sir, We have read your project, we are professional circuit designers and PCB designers. We can do it for you. We do our projects with full quality assurance We offer our services at very feasible rates. Pl Plus

1600 kr SEK en 13 jours
(25 Commentaires)

dear Sir i can do this project. I can assure you that if you work with me once, you will always work with me for these kind of projects.

2222 kr SEK en 10 jours
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Hi Sir, I am interested and would like to do it. Thank you.

1600 kr SEK en 7 jours
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Hello, i have a 50-60% equal project that work, so i can use knowledge. Here are my proposals: My name is Vladimir. I've been worked in Olimex LTD for 3 years (www.olimex.com). I have a big experience in prototyping sc Plus

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hello,I am an electronics and communication engineer. I have good experience of embedded systems and PCB Design. I can Write the codes for functioning and test the systems in my place. design the PCB and send to you th Plus

1777 kr SEK en 7 jours
(5 Commentaires)

chance to make a good first impression to the employer! Ensure that you: Understand their project needs. Explain how your skills and experience make you the right freelancer for the job. Outline how you plan to c Plus

2777 kr SEK en 15 jours
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