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
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
34 freelance font une offre moyenne de kr3413 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
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
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
Hello, Good Morning. We will design and prototype the required hardware. Please feel free to contact us. Best Regards, Shahbaz.
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
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
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
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
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
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
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
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
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.
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