How much ampere can obniz drive?
Each IO can drive up to 1A.
You may want to drive 12A(Because IO is 12).
First, USB connecter can drive up to 1.8A. If you need more please use J1 connector on obniz.
Second, When you use more than 4A, You might be needed to cool obniz.
We tested 6A without heatsink. It workes but it’s hot. We still touch it but we recommend you to cool obniz down.
And we still not tested obniz more than 6A.