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

Taidot: Arduino, sähkötekniikka, elektroniikka, tuotesuunnittelu, Ohjelmistokehitys

Näytä lisää: 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

Tietoa työnantajasta:
( 6 arvostelua ) LINKÖPING, Sweden

Projektin tunnus: #13079914

Myönnetty käyttäjälle:


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 Lisää

2500 kr SEK 10 päivässä
(21 arvostelua)

35 freelanceria on tarjonnut keskimäärin 3545 kr tähän työhön


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 Lisää

5000 kr SEK 15 päivässä
(201 arvostelua)

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 Lisää

3555 kr SEK 3 päivässä
(237 arvostelua)

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 Lisää

4500 kr SEK 10 päivässä
(61 arvostelua)
4736 kr SEK 10 päivässä
(35 arvostelua)

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

5000 kr SEK 20 päivässä
(48 arvostelua)

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 Lisää

4444 kr SEK 11 päivässä
(18 arvostelua)

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 30 päivässä
(31 arvostelua)

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 Lisää

9922 kr SEK 21 päivässä
(5 arvostelua)

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 Lisää

1900 kr SEK 15 päivässä
(44 arvostelua)

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 Lisää

3998 kr SEK 20 päivässä
(25 arvostelua)
5000 kr SEK 10 päivässä
(13 arvostelua)

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. Lisää

2000 kr SEK 18 päivässä
(23 arvostelua)

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 Lisää

1600 kr SEK 13 päivässä
(29 arvostelua)
4666 kr SEK 10 päivässä
(23 arvostelua)

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 10 päivässä
(16 arvostelua)

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

1600 kr SEK 7 päivässä
(10 arvostelua)

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 Lisää

4000 kr SEK 20 päivässä
(7 arvostelua)

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 Lisää

1777 kr SEK 7 päivässä
(5 arvostelua)

Hello We are highly motivated young technocrats from India. We are approachable, you can come to us if you have a struggle, we are happy to help. Team TiponTongue

8000 kr SEK 30 päivässä
(2 arvostelua)
3333 kr SEK 10 päivässä
(3 arvostelua)