So I ordered a DF Robot kit and got some help to put it together.
I want to control the wheels with my netduino.
What I want to do is simple. Press the netduino's button, and start the 4 wheels in the same direction, full power.
When I try to make it run with one wheel plugged in my breadboard, it works, the wheel move.
But when I add a second wheel, nothing happens. It seems that I don't have enough power to make the wheels move.
The netduino is powered by a 9volt battery. When I press the button, the netduino let the big power source ( 5 AA batteries , as suggested in the kit) flow in the motors. (this is how I see it correct me if I'm wrong.)
( note that I removed the resistor)
Basically, I'm doing the exact same thing with my df-robot kit.
The motors negative wires are all lined up in the #5 pin of the 4n35 transistor.
The 4 positive wires are all lined up with the positive power source positive wire. (5 new AA batteries)
I'm using the 4n35 transistor that came with my netduino kit I ordered.
But before I go on and buy something along the lines of a motor shield, is there a way to get it working with my current setup ?
Best Answer
There are a couple of issues with the proposed design:
A high-level solution, leaving you to work out the specifics:
simulate this circuit – Schematic created using CircuitLab
Note that the motor will be on when the netduino output is low, and vice versa. The circuit can be reshuffled to eliminate this inverting of logic, if required.