Looking for some advice, completely new to electronics so please bear with me.
I am currently working on a project to build an automatic watch winder, I have a 12v 10rpm motor which should be suitable for the application.
I am looking into options for starting the circuit on a cycle say, 15mins run time for every 3hrs.. As opposed to just an on/off switch.
The initial research I did lead me to believe a '555 timer' might be in order, but it would seem the length of time I am talking about is unsuitable for this.
So onto using a micro controller of sorts and there seems to be ALOT of different options!
Was hoping someone could point me in the right direction for something which looks more suitable ?
Thank you in advance,
David
Best Answer
If you want bells and whistles (perhaps literally) you can use an Arduino. You can buy or make a relay interface to switch the motor. If you want it to flash LEDs, have a menacing red LED countdown display, play a song, or coordinate jets of water into the air as your Tourbillon self-winding watches are wound.. it's all pretty straightforward.
If you just want a silent electronic timer with rough timing but fairly precise on/off ratio, a 555 and CMOS counter (plus a gate or analog switch to determine the on/off cycle) will do it.