Makers, hobbyists and developers that enjoy building Arduino-based projects may be interested in a new Arduino dual motor controller that has been created by David Baines.
The new Arduino-based (Leonardo) dual motor controller is a dual bi-direction motor driver that is compatible with I2C, R/C signals and encoders.
“This design is rated at 5-20V, 15A. This means that both H-bridges combined cannot use more then 15A. Either H-bridge can be used up to 15A.Controls 2 motors bi-directional (forward/backwards) or 4 motors single direction
It should be noted that you do not need to use the controller to drive motors, you can input your own signals via the break outs. The controller in this case should not be powered or the pins connected to the motor drivers need to be configured as inputs to avoid voltage conflicts.
There are 2 ways to connect the motors, the center high current wire terminal connections and the lower current breakout connections. Use the high current connection for up to 20V 15A. The breakout connection is recommended for 12V 5A or less and is in a easy to use configuration for motors with or without encoders. I’m specifically thinking of the Pololu 12V geared + encoder motor series found on several sites on line.
The power toggle function is instant on, delayed off. It is controlled by a resistor (R14) which is by default 200K which is a 2sec delay and the recommended lowest value to use. Any lower may cause inconsistencies on the toggle. A break out pin SW is to bypass the push button, pulling low by I/O pin or external source will start the toggle logic.”
The Arduino dual motor controller specifications include :
• 2 Full H-Bridge motor drivers.
• 5-20V, 15A Rating.
• Reverse polarity protection (motor power)
• Arduino Compatible (Leonardo – 32U4 chip)
• I2C, level shifting for 3.3V & 5V devices
• MPU6050, HMC5883 chips on select models. (motion detection)
• Designed for R/C inputs and motor encoders, but you can manually connect for any application.
• On board power toggle. Can be used to control the processor power or a secondary circuit. (5V, 1A max rating)
• 4.15″ x 3.4″ Outline
• 3.85″ x 3.1″ Spacing for mounting holes
• #6-32 mounting screws
For more information on the new dual motor controller jump over to the Kickstarter website for details via the link below and make a pledge from $35 to be one of the very first to own one.
Source: Kickstarter