Arduino Motor Stepper Servo Shield SHD MStepper
Arduino Motor Stepper Servo Shield SHD MStepper – Description
The Arduino is a great starting point for electronics.
And with a motor shield, it can also be a nice tidy platform for robotics and mechatronics.
Here is a design for a full-featured motor shield that will be able to power many simple to medium complexity projects.
2 connections for 5V ‘hobby’ servos connected to the Arduino’s high-resolution dedicated timer – no jitter!
Up to 4 bi-directional DC motors with individual 8-bit speed selection (so, about 0.5% resolution)
Up to 2 stepper motors (unipolar or bipolar) with single coil, double coil, interleaved or micro-stepping.
4 H-Bridges: L293D chipset provides 0.6A per bridge (1.2A peak) with thermal shutdown protection, 4.5V to12V
Pull down resistors keep motors disabled during power-up
Big terminal block connectors to easily hook up wires (10-22AWG) and power
Arduino reset button brought up top
2-pin terminal block to connect external power, for separate logic/motor supplies
Dimensions(assembled): 69mm x 53mm x 14.3mm (2.7in x 2.1in x 0.6in)
Read more: http://www.elecfreaks.com/store/arduino-motorstepperservo-shield-shdmstepper-p-475.html#ixzz4TO4dJqGm
If you are planning on assembling your new robot.
You will eventually want to learn about controlling a range of motors like DC motors, Stepper motors & servos.
One of the simplest and economical way to do this is to interface L293D Motor Driver Shield with Arduino.
It’s a full-featured motor shield perfect for many robots and CNC projects.
It can drive:
- 4 bi-directional DC motors with 8-Bit speed selection (0-255)
- 2 stepper motors (unipolar or bipolar) with a single coil, double coil, interleaved or micro-stepping.
- 2 servo motors
L293D Motor Driver & 74HC595 Shift Register
The L293D is a dual-channel H-Bridge motor driver capable of driving a pair of DC motors or single stepper motor.
As the shield comes with two L293D motor driver chipsets, that means it can individually drive up to four DC motors making it ideal for building four-wheel robot platforms.
The shield offers total 4 H-Bridges and each H-bridge can deliver up to 0.6A to the motor.
The shield also comes with a 74HC595 shift register that extends 4 digital pins of the Arduino to the 8 direction control pins of two L293D chips.
L293D Motor Driver Shield Power Supply Terminals
There is three scenarios for supplying power for the motors through a shield.
Single DC power supply for both Arduino and motors: If you would like to have a single DC power supply for both Arduino and motors.
Plug it into the DC jack on the Arduino or the 2-pin EXT_PWR block on the shield.
Place the power jumper on the motor shield.
You can use this method only when the motor supply voltage is less than 12V.
(Recommended) Arduino powered through USB and motors through a DC power supply:
If you would like to have the Arduino powered off of USB and the motors powered off of a DC power supply, plug in the USB cable.
Then connect the motor supply to the EXT_PWR block on the shield. Do not place the jumper on the shield.
Two separate DC power supplies for the Arduino and motors:
If you would like to have 2 separate DC power supplies for the Arduino and motors.
Plug in the supply for the Arduino into the DC jack and connect the motor supply to the EXT_PWR block.
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