User Manual

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Table Of Contents

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3.1 Internal principle diagram

3.2 Logic function table

The logic diagrams of IN3 and IN4 are the same as the above table. It can be seen from the above

table that when ENA is at low level, the input level has an effect on motor control. When ENA is

at high level, the input level is one high and one low, and the motor is forward or reverse. Both

are low-level or both are high-level, motor to stop.