Combining M1 M2 and M3 M4 of adafruit motor shield v2 to us

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Samirkape31
 
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Combining M1 M2 and M3 M4 of adafruit motor shield v2 to us

Post by Samirkape31 »

Hello sir,
I have Adafruit Motor Driver Shield V2, I have to drive two pololu micrometal gear motors which requires 1.6Amps of current but unfortunately TB6612FNG mounted on motor shield V2 only provides 1.2 A current. Can I combine M1 M2 of shield to connect single motor and M3 M4 to another one?

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adafruit_support_bill
 
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Re: Combining M1 M2 and M3 M4 of adafruit motor shield v2 t

Post by adafruit_support_bill »

In theory it is possible, but there is no support for it in the existing library. The problem is making sure that the two bridges in a TB6612 are never opposing each other. If this happened even for a millisecond, one of both would likely be destroyed. This is further complicated by the fact that all communication is via i2c and you can only change the state of one TB6612 pin at a time. To change directions with your motor, you would need to figure out the sequence of pin changes that would reverse both bridges without them ever being in an opposing state.

A better solution would be to use a pair of DRV8871s: https://www.adafruit.com/product/3190

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