Hello all.
I have a small project I'm working on these days. The idea is to combine a automated aquarium feed system with a PicAxe.
The PicAxe will have it's normal 5v power from a regulated power supply. The feeding devices uses 3v from 2 AA batteries which turns on a motor every 12hours. What I would like to do is to turn on and off the device using a PicAxe pin. I don't want to have to put batteries to the device and use a relay to turn it on of off.
I tried using a voltage divider to drop the voltage at 2.5v but it didn't work. Any change I can place a resistor in series with the device for the rest of the volts (5-3=2) that the device doesn't need? Would that work?
Thanks
I have a small project I'm working on these days. The idea is to combine a automated aquarium feed system with a PicAxe.
The PicAxe will have it's normal 5v power from a regulated power supply. The feeding devices uses 3v from 2 AA batteries which turns on a motor every 12hours. What I would like to do is to turn on and off the device using a PicAxe pin. I don't want to have to put batteries to the device and use a relay to turn it on of off.
I tried using a voltage divider to drop the voltage at 2.5v but it didn't work. Any change I can place a resistor in series with the device for the rest of the volts (5-3=2) that the device doesn't need? Would that work?
Thanks