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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, set brightness led iphone xcode, amp constant current driver volt led, led countdown timer flash, flash online led countdown timer, electronic fpga project fisrt year, delphi usb count, counting words website translation word count, actionscript count timer, lost series count timer, count timer flash, timer flash count, javascript countdown timer count day week, flash count countdown timer, visual basic 2008 count timer, adding count timer multiple excel cells, count timer jpeg file, php timer count days, timer graphics count, animated count timer, flash count timer generator, mondrian olap total count, linux show total uptime year software, ruby rails timer count ajax

Concernant l'employeur :
( 6 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

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35 freelance font une offre moyenne de kr3545 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

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Hello, Good Morning. We will design and prototype the required hardware. Please feel free to contact us. Best Regards, Shahbaz.

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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

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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

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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

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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

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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

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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

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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.

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Hi Sir, I am interested and would like to do it. Thank you.

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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 ([url removed, login to view]). I have a big experience in prototyping sc Plus

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