Let's Make Robots!

low voltage

"Should" be simple.

I have what will be a stupid simple project for all of you, but even the simplest of robotics controll systems are a mystery to me. The mechanical aspect I have down. I need to know how make a low voltage motor start and stop in the same position (precicely) after a single rotation. The type of motor will be determined by what I need for the project ie stepper motor, induction or standard. Speed controll is a must. One cycle = one rotatoin over a two to ten second period.

L293D 5V in - 3V out

Hi, I have a problem with L293D. On Vcc2 is 5V, but on JP1, JP2 is only 3V.

L293D 5V in - 3V out

Hi, I have a problem with L293D. On Vcc2 is 5V, but on JP1, JP2 is only 3V.

GM3/GM9 strength at low voltage?

I need help from someone who owns a solarbotics geared motor type GM3 or GM9, or even better: both!

I wantot to know how strong they are when driven directly from a single AAA 1,5 Volt battery. If you hook it up to the battery and hold on to the axle/output shaft, will the motor be able to spin itself around? Would it be able to keep spinning if you taped the battery onto the motor body, or would the added weight of the battery be to much to keep whole contraption rotating around its own axle?