Touchscreen Countdown Timer

I'm working on a prototype for a project and I need to source a circular LCD/OLED (or similar) countdown display timer - see the attached rough sketch.

The timer must only countdown days automatically, not hours, minutes or seconds, and be operated by a battery that you would get in a digital wristwatch or car key fob. It needs to be simple and basic in its functionality. If I want to set the timer to countdown from 10 days then I push the + button until I get to 10 and if I leave it for 3 seconds it will set on this number. It only requires 3 digits so the max number of days is 999. When the timer reaches 3 days the display changes colour from green to yellow and when it reaches 0 days it changes from yellow to red and flashes. When it goes past zero the next day should be -1, then -2, etc.


1. Size - it should be 1.5 inches diameter, 2 inches max, and as thin as possible.

2. It must be touch screen – see the video of an air fryer – this is much the same concept as what I want but smaller and thinner and battery operated.

3. The screen will need a thin plastic or rubber transparent cover to protect it from water but at the same time, this should not impact its visibility or functionality of the +/- buttons.

The product delivered must be fully complete with screen, battery and functionality.


- If you cannot do this job from beginning to end then do not apply.

- If you need to purchase items/parts then you must tell me exactly what is needed and the cost.

- If you agree a time frame then you must stick to this and not be sidetracked by other projects.

- If you believe you can do this job and have previous experience then I need to see copies of your work.

Taidot: Mikrocontroller, Elektroniikka, Sähkötekniikka, Arduino, Sulautetut ohjelmistot

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Tietoa työnantajasta:
( 0 arvostelua ) ENNISCORTHY, Ireland

Projektin tunnus: #20334924

13 freelanceria on tarjonnut keskimäärin €248 tähän työhön


Hello sir, I have experience in designing electronics circuits and can develop hardware compatible smartphone and PC based apps. I also have done a lot of IoT projects and can transform your idea into a fully working p Lisää

€300 EUR 15 päivässä
(44 arvostelua)

greeting there , I could absolutely help you with your countdown display timer project i am very excited work on your project and help you get it done in short time bellow sample of my LCD/TFT previous works : https Lisää

€140 EUR 4 päivässä
(48 arvostelua)

We are a team of Electrical and Electronics engineers and we are Excellent in the following areas: • Embedded C Programming. • VHDL/Verilog • Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC and STM32. • ID Lisää

€140 EUR 7 päivässä
(35 arvostelua)

Hi, I have worked on a similar project before with below details. -> OLED with MM: SS + / - using Arduino. -> Button/ switches to Increase and decrease Minutes and Seconds (not touch screen like you show in the video Lisää

€250 EUR 20 päivässä
(36 arvostelua)

Hello, there. I have read your job description carefully, you want to design a countdown display timer prototype. your job is advanced, because of the required size. You want to use a mini microcontroller like AVR a Lisää

€250 EUR 12 päivässä
(1 arvostelu)

Hi. i'm expert in microcontroller arduino. i have 2 years experience as developer. I often work on the project internet of things, and other things related to Arduino. thanks.

€250 EUR 15 päivässä
(0 arvostelua)

Hi, How are you? I am very interested in your project. I have enough experience on raspberry, arduino and python. I think I can deliver good result to you. Thanks.

€500 EUR 7 päivässä
(0 arvostelua)

Seeing your requirement, we know that it will take time. Quality takes money too. We will need to discuss and make revisions as well.

€500 EUR 30 päivässä
(0 arvostelua)

Projects done areRC REMOTE CONTROLLER, made humanoid which can be controlled by joystick, Bluetooth app and also via radio frequency communication,Portable Home Automation Device. Engnr to rely on! Relevant Skills an Lisää

€166 EUR 7 päivässä
(0 arvostelua)

Hey I have already done projects related to wearable, so I have already worked on battery and display related projects and I am confident that I can complete your project as per your requirement.

€150 EUR 15 päivässä
(0 arvostelua)

Hello sir I am expertise in embedded programming. I learned Avr, pic, 8051,arduino, raspberry pie and iot. I learned and interfaced graphical lcd, and tft to many devices. I am eager to interface oled display with mic Lisää

€77 EUR 3 päivässä
(0 arvostelua)

Hi, I am Amit from India and Like to support you on this project but before that i want to chat with you to clear few things can you msg me to discuss more.

€250 EUR 20 päivässä
(0 arvostelua)
€248 EUR 15 päivässä
(0 arvostelua)