Motor speed controller
$20.00
This new motor controller can be directly triggered from a low level TTL signal, no other power board is needed. This will allow you to connect it directly to a KL25Z or any other board without a power relay in between to supply high current. It also has a built-in speed adjustment knob. If you are connecting it to a board that can supply more than 20mA on the output, the VCC connection can be jumped from the + input on the board.
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