I'm looking for someone with expertise in electronics, arduino, micro controllers, etc.
To design a circular LCD/OLED (or similar) countdown display timer.
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 (or smaller). 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. How thin this can be design will decide whether to proceed, or not.
2. Ideally it would be a touch screen, similar to how an air fryer is operated.
3. The back would have a magnetic case so it can attach to metal surfaces.
32 freelanceria on tarjonnut keskimäärin 503$ tähän työhön
Hello sir, I have experience in designing electronics circuits and can program all kinds of microcontrollers. You can discuss your project with me in chat and we can move on right away. Thank you.
Electronics Firmware Engineer with experience in complex systems development with practicing in Embedded Systems, Programming Firmware, C, C++, Linux, Python and IoT gateways. Let's Discuss Further.