Control Stepper Motor with A4988 Driver Module and ESP8266 NodeMCU
In this video we will go over how to use the A4988 Stepper Motor Controller with Arduino UNO and NodeMCU. We will learn about the basics of the A4988, how to use the microstepping function of the A4988, how to set the current limit to avoid exceeding your motor current limit, how to connect to Arduino and NodeMCU, and we will go over several examples.
In this getting started tutorial, we will learn to interface the A4988 stepper motor driver module with ESP8266 NodeMCU. This A4988 driver module which is used to control a stepper motor in a relatively simple manner. Using only two pins of ESP8266 NodeMCU and A4988 driver module, we can control the speed of the rotation as well as the direction of rotation of a stepper motor. We will learn all about this driver module and how to use it with ESP8266 NodeMCU to control a bipolar NEMA 17 stepper motor. This guide also includes two Arduino sketches that provide a good basic understanding of how to easily control the speed, direction as well as acceleration/deceleration of the stepper motor using this stepper motor driver module.
We have similar guides with ESP32 and Arduino:
Control Stepper Motor with A4988 Driver Module and ESP32
Control Stepper Motor with A4988 Driver Module and Arduino
ESP8266 NodeMCU board
A4988 Driver Module
NEMA 17 Stepper Motor
External 12V power supply
Connecting Wires
Stepper Motors
Stepper motors are DC brushless and synchronous motors. They rotate in discrete steps of predefined values and are able to rotate both clockwise and anticlockwise. Unlike other DC motors, they provide a precise position control according to the number of steps per revolution for which the motor is designed. That means a complete revolution of a stepper motor is divided into a discrete number of steps. They are commonly used in CNC machines, Robotics, 2D and 3D printers.
For this guide, we will use a NEMA 17 stepper motor and control it through A4988 Driver Module.
NEMA 17 Stepper Motor
It is suitable for 3d printers, CNC Machines, Engraving Machines, Robot Arms, etc. In low-speed devices which require smart rotatory movement at a specific speed without missing any single step can use the NEMA 17. NEMA 17 torque-speed is changeable by applying the different operating speeds. Actually, the torque depends on multiple factors, which are applying current, voltages, and the third factor is the induction of coil within the motor. The rotation of the motor requires the magnetic field to make a single step. The time required to make the coil fully magnetic depends on the induction of the coil.
In NEMA 17 all pins are connected internally with the coil. To make the movement we need to magnetize the coil. Internally to control the stepper motor we will have to use the green and black pair. The second pair will be of red and blue.
Specifications
Its rated voltage is 12V
Phase current is 2.2A
The Holding torque is equal to 40N.cm
One step angle will be of 1.8 Deg.
Total steps for each resolution will be 200.
4-wire and 8-inch lead
Number of phases are 4
Total inductance by each phase will be 2.8 mH
The resistance of the coil is 1.5 Ohm per coil.
For more information about NEMA 17 refer to its datasheet here.
A4988 Driver Module
The A4988 Driver Module is used to control the speed and direction of stepper motors mainly used in robotics, toys, 3D printers for motion control. It is capable of operating bipolar stepper motors in full step, half step, quarter step, eighth step, and sixteenth step modes. There is a built in translator which allows only two pins from the ESP8266 board to be used to control the speed and direction of the stepper motor.
Control Stepper Motor with A4988 Driver Module and ESP8266 NodeMCU
In this video we will go over how to use the A4988 Stepper Motor Controller with Arduino UNO and NodeMCU. We will learn about the basics of the A4988, how to use the microstepping function of the A4988, how to set the current limit to avoid exceeding your motor current limit, how to connect to Arduino and NodeMCU, and we will go over several examples.
In this getting started tutorial, we will learn to interface the A4988 stepper motor driver module with ESP8266 NodeMCU. This A4988 driver module which is used to control a stepper motor in a relatively simple manner. Using only two pins of ESP8266 NodeMCU and A4988 driver module, we can control the speed of the rotation as well as the direction of rotation of a stepper motor. We will learn all about this driver module and how to use it with ESP8266 NodeMCU to control a bipolar NEMA 17 stepper motor. This guide also includes two Arduino sketches that provide a good basic understanding of how to easily control the speed, direction as well as acceleration/deceleration of the stepper motor using this stepper motor driver module.
We have similar guides with ESP32 and Arduino:
Control Stepper Motor with A4988 Driver Module and ESP32
Control Stepper Motor with A4988 Driver Module and Arduino
ESP8266 NodeMCU board
A4988 Driver Module
NEMA 17 Stepper Motor
External 12V power supply
Connecting Wires
Stepper Motors
Stepper motors are DC brushless and synchronous motors. They rotate in discrete steps of predefined values and are able to rotate both clockwise and anticlockwise. Unlike other DC motors, they provide a precise position control according to the number of steps per revolution for which the motor is designed. That means a complete revolution of a stepper motor is divided into a discrete number of steps. They are commonly used in CNC machines, Robotics, 2D and 3D printers.
For this guide, we will use a NEMA 17 stepper motor and control it through A4988 Driver Module.
NEMA 17 Stepper Motor
It is suitable for 3d printers, CNC Machines, Engraving Machines, Robot Arms, etc. In low-speed devices which require smart rotatory movement at a specific speed without missing any single step can use the NEMA 17. NEMA 17 torque-speed is changeable by applying the different operating speeds. Actually, the torque depends on multiple factors, which are applying current, voltages, and the third factor is the induction of coil within the motor. The rotation of the motor requires the magnetic field to make a single step. The time required to make the coil fully magnetic depends on the induction of the coil.
In NEMA 17 all pins are connected internally with the coil. To make the movement we need to magnetize the coil. Internally to control the stepper motor we will have to use the green and black pair. The second pair will be of red and blue.
Specifications
Its rated voltage is 12V
Phase current is 2.2A
The Holding torque is equal to 40N.cm
One step angle will be of 1.8 Deg.
Total steps for each resolution will be 200.
4-wire and 8-inch lead
Number of phases are 4
Total inductance by each phase will be 2.8 mH
The resistance of the coil is 1.5 Ohm per coil.
For more information about NEMA 17 refer to its datasheet here.
A4988 Driver Module
The A4988 Driver Module is used to control the speed and direction of stepper motors mainly used in robotics, toys, 3D printers for motion control. It is capable of operating bipolar stepper motors in full step, half step, quarter step, eighth step, and sixteenth step modes. There is a built in translator which allows only two pins from the ESP8266 board to be used to control the speed and direction of the stepper motor.
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