Hello,
I am designing a kid's wearable watch that has a button to switch on some LEDs. I want to have some sort of timing mechanism to turn off the LEDs after a set period of time to conserve battery life. I'll be using a couple CR2025s and want to minimize power consumption so the batteries don't need to be replaced for a long time (so I don't think a 555 is an option here?). Safety is my number 1 concern.
Any suggestions to design such a circuit? Any other advice related to safety of components would also be useful. Thanks in advance!
I am designing a kid's wearable watch that has a button to switch on some LEDs. I want to have some sort of timing mechanism to turn off the LEDs after a set period of time to conserve battery life. I'll be using a couple CR2025s and want to minimize power consumption so the batteries don't need to be replaced for a long time (so I don't think a 555 is an option here?). Safety is my number 1 concern.
Any suggestions to design such a circuit? Any other advice related to safety of components would also be useful. Thanks in advance!