Consider a 1000:1 gear motor. They run on as little as 1 V at about 2 RPM, and perhaps quite a bit less. Or, one such motor could be geared even further down.
Consider a 1000:1 gear motor. They run on as little as 1 V at about 2 RPM, and perhaps quite a bit less. Or, one such motor could be geared even further down.