![]() Green Interface–power output/motor output 5. The various colors on MegaPi represents specialized functions:īlue pin–wireless communication interface Interfaces of MegaPi and Other Plug-in Modules One reset key, one power indicator (red) and one I/O indicator (blue)Ĥ.High-power DC input interface with an over-current protection of 2A and anti-reverse measurement.It uses the CH340G USB to serial chip which can realize communication between the computer and MegaPi easily and stably B-type USB interface for downloading programs and communications.Slide switch for controlling the power supply.Three M4 mounting holes which allow the board to be connected with Raspberry Pi.One Raspberry Pi switch interface (requires manual soldering) to realize 5V to 3.3V serial communication.Maximum output of normal I/O ports is DC 5V 3A Two high-power MOS driver interface which is able to drive devices with a maximum current of 10A.Ten servo interfaces which enable the board to drive up to 10 servos at the same time.One wireless communication interface for adding Bluetooth module or 2.4G module.Four motor driver interfaces for adding encoder motor driver and stepper motor driver, and thus to drive DC motors, encoder motors and stepper motors.It is the ideal option for various robotic projects, such as smart robot car and 3D printer. MegaPi has strong motor-driving ability which is capable of driving 10 servos or 8 DC motors simultaneously. MegaPi can be divided into 6 function area, allowing you to connect with various plug-in modules to drive motors and sensor and to realize wireless communication. It is based on Arduino MEGA 2560 and supports programming with Arduino IDE perfectly. You can replace it with a conductive wire.MegaPi is a main control board specially designed for makers and also an ideal option for being applied to education field and all kinds of matches. It is also possible that the fuse on the board is damaged. If this is not the case, you probably have a connection problem. Once the code is uploaded and the system is plugged in, you should see the motor connected to the Y driver turn one turn clockwise and two turns counterclockwise. ![]() Note however, that if you want to use more advanced features you can use the AccelStepper library or the GRBL V0.9 firmware. To test the operation of the Shield and the engines, we do not use any particular library. const int enPin = 8 const int stepXPin = 2 //X.STEP const int dirXPin = 5 // X.DIR const int stepYPin = 3 //Y.STEP const int dirYPin = 6 // Y.DIR const int stepZPin = 4 //Z.STEP const int dirZPin = 7 // Z.DIR int stepPin = stepYPin int dirPin = dirYPin const int stepsPerRev = 200 int pulseWidthMicros = 100 // microseconds int millisBtwnSteps = 1000 void setup ( ) To drive a stepper motor with CNC Shield V3, we refer to the pinout of the shield which gives us access to the pins to call to send commands to the motor controller (DRV8825, A4988 or SilentStepStick). These terminals are connected to the MS0, MS1 and MS2 pins of the controllers.īefore connecting the motors, be sure to set the current limiter on each controller to match the motor it is driving. Terminals are available below each driver to select the step resolution. You can choose the drivers you want depending on the power of your motors and your applications (A4988, DRV8825, SilentStepStick, TMC). The Shield is placed on the Arduino microcontroller and the motors are connected directly to the output pins of the drivers. It also allows to drive and manage the elements necessary to operate a digital milling machine (CNC). The CNC Shield V3 is an extension board for Arduino UNO or Mega allowing to interface easily to stepper motor controllers, type A4988.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |