MrNaz
Enlightened
I would like to build my light with a battery charge indicator.
I could either do a series of LEDs (3 lit = full, 2 = medium and 1 = low) or colour coded (green = full, amber = mid and red = low), but I don't know what to use to do it. I would like to use extremely low current LEDs, say 5mA so it could be permanently on, with a low voltage cutoff to prevent long-term storage from totally depleting the battery.
Alternatively, I could make the indicator only active when the light is switched on. That would prevent the light from being empty when taken out of the cupboard. Either would be fine.
Another option would be to make the indicator only active for a short time after the light was turned off, but this would require some programming.
I have no idea what electronics to use to achieve this. Anybody have any suggestions on how to go about starting the design on this circuit? Where would I go to have the necessary programming of a board done?
I could either do a series of LEDs (3 lit = full, 2 = medium and 1 = low) or colour coded (green = full, amber = mid and red = low), but I don't know what to use to do it. I would like to use extremely low current LEDs, say 5mA so it could be permanently on, with a low voltage cutoff to prevent long-term storage from totally depleting the battery.
Alternatively, I could make the indicator only active when the light is switched on. That would prevent the light from being empty when taken out of the cupboard. Either would be fine.
Another option would be to make the indicator only active for a short time after the light was turned off, but this would require some programming.
I have no idea what electronics to use to achieve this. Anybody have any suggestions on how to go about starting the design on this circuit? Where would I go to have the necessary programming of a board done?
