51 microcontroller control stepper motor hardware connection part

1. Summary: This case explains the hardware connection part of the stepper motor controlled by the 51 microcontroller. Later, we will explain the microcontroller program, S-curve acceleration and deceleration method, host computer and other related content.

2. Functional schematic diagram:

2.1, 51 microcontroller:

① Output pulses to the PUL port of the TB6600 driver to control the rotation of the stepper motor

②Control the TB6600 driver ENA port to control the stepper motor enable

③Control the DIR port of the TB6600 driver to control the rotation direction of the stepper motor

2.2. Stepper motor:

①Provide mechanical power

2.3. Stabilized power supply:

① Provide power to the stepper motor

2.4. TB6600 driver:

①Special driver for two-phase four-wire stepper motor

3. Physical picture:

** ①**, one 51**** microcontroller control board

** ②**, one two-phase four-wire stepper motor

** ③** , a regulated power supply

** ④**, one TB6600**** stepper motor driver

** Completed connection picture: **

**Hardware connection diagram description:**

①The 51 microcontroller control board and the TB6600 stepper motor driver adopt a common anode connection (the ENA+, DIR+, and PUL+ of the TB6600 driver are connected to the VCC of the microcontroller);

②The P0.0 port of the 51 microcontroller controls ENA-. When P0.0 is at a high potential, the stepper motor is powered off and the stepper motor is in a free state and can be rotated by hand; when P0.0 is at a low potential, the stepper motor is powered on. According to The input pulse signal will rotate, and it will be in a self-locking state when there is no pulse signal;

The P0.1 port of the microcontroller controls DIR-, and the high potential and low position of P0.1 correspond to the forward and reverse rotation of the stepper motor respectively;

** ③** The P0.2 port of the microcontroller controls PUL-. A pulse is formed by switching the high and low potential of the P0.2 port. The TB6600 driver receives a pulse and the stepper motor rotates one step.