Description
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.
Features
- 2 connections for 5V servos connected to the Arduino's high-resolution dedicated timer - no jitter!
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Compatible with Arduino Mega2560 & Arduino UNO.
- 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.
Specification
- Power supply: 4,5V to 16 V
- Driver: 2 x L293D
- Maximum current per channel: 600 mA
- The shift register 74HC595
- The number of supported motors:
- 4 DC motors
- 2 stepper motors
- 2 servo connectors
- The reset button
- Size: 7cm x 5.4cm x 2cm
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