The EV3 brick has only four output ports (A B C & D) to run motors. Is there any way to use port 1 (sensor port) to control a motor?
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1 Answer
A sensor port can't directly output to a motor. The sensor drivers can't provide enough power to supply a motor.
You have a couple options:
- Daisy-chain two EV3s together. The first can control the sensors and motors of the second.
- Use an electronic motor multiplexer. EDIT: It should be noted that this requires an external power supply, which will increase the cost and complexity of your project.
- Depending on your project, you might be able to make do with only 4 motors. See this response for driving multiple outputs with a single motor.
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It depends on what you are making, but if you are very creative you can do many, many things with just one motor such as with this railway system. Each rail cart has a motor that provides drive for a hopper and conveyor in addition to the drive of the cart.– Ambo100 ♦Commented Dec 17, 2018 at 21:49