Why I use stm32 VCC (3.2 V) to drive dc motor, and with it the GPIO push-pull output, but can't drive motor voltage is almost the same

CodePudding user response:

Brother, it seems that your base,,,
1: the voltage and current are the two things, completely different
2: chip inside the current carrying capacity is very low, cannot use GPIO direct drive, like a small wooden bridge NiTou car

CodePudding user response:

You search small four axis of principle diagram, you see

CodePudding user response:

reference 1st floor zhouml_msn response:

, the basis of it looks like you,,,
1: the voltage and current are the two things, completely different
2: chip inside the current carrying capacity is very low, cannot use GPIO direct drive, like a small wooden bridge NiTou car

Driver module is the output is not have to use the wrong way has been solved