5A Motor Shield for ArduinoDesigned by DCC-EX in United States of America
Overview The EX-Motorshield8874 is pin compatible with the original Arduino Motor Shield Rev3 but provides significantly improved electrical performance for driving higher loads, and improved usabili…Read More…
The EX-Motorshield8874 is pin compatible with the original Arduino Motor Shield Rev3 but provides significantly improved electrical performance for driving higher loads, and improved usability.
The EX-Motorshield8874 is based on two DRV8874 H-bridge motor drivers with integrated current sensing from Texas Instruments (TI). It is used to drive inductive loads like relays, solenoids, DC and stepping motors, as well as provide the DCC signal and power to the model railroad tracks.
Powering of Arduino boards is possible due to the on board DC/DC buck converter, supporting a wide input supply range from 9 to 30V. The reverse polarity protection prevents damage to the circuit and its components in case the power supply is accidentally connected backwards.
The board's 5V and 3V3 friendly design makes it suitable for a broad range of Arduino compatible platforms, with an override that compensates for designs with incomplete support (such as an incorrect IORef voltage).
This Shield features a status LED for supply, which provides a visual indication of the power supply status.
EX-Motorshield8874 is specifically designed for use with DCC-EX Command Station for controlling model railroads, but can also be used as generally better replacement for Arduino Motor Shield R3 in any device that needs to control a motor. We needed higher current capacity to power more motors/trains and have little to no voltage drop due to advanced MOSFET driver technology.
For more detailed information follow the link to the EX-Motorshield8874 on Github. It also includes the schematic and the KiCad project files.
NOTE: US boards are currently blue.
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