These pins should have a pull up resister to Vcc (which is on most boards). Enable/diagnose interfaceĪll chips also have 2 enable/diagnose pins: DIAGA/ENA and DIAGB/ENB. Tip: If you want to reverse the motor (forwards becomes backwards), you can either use negative values for the speed() function or simply reverse the INA and INB pins when calling the begin() function. The control lines need to be connected to a digital output of your Arduino board.

PWM - duty cycle to control motor speed or brake power.

current measurement interface (not on all boards).

diagnose interface to detect overload (2 for each chip, sometimes connected on board).

control interface to control the motor (3 for each chip).

Some have a single controller chip, other may have two chips on a single board. The controller boards come in various configurations. Supports for STM32 boards: library compiles for this environment, but is not yet tested. If you install the ESP_AnalogWrite library, this library also works with ESP32 boards (not yet fully tested). This library supports all AVR based Arduino boards that support the analogWrite() function to generate PWM signals (most boards). To install this library use the Arduino library manager or use the Clone or download > Download ZIP button on the repository home page and then install the library in your Arduino environment using Sketch > Include Library > Add. The biggest difference is that the VNH5019A-E chips work with 3.3V and 5V logic, while the older VNH3SP30 chips require 5V logic. The VNH5019A-E chips are newer and almost identical to the VNH3SP30 chips. The VNH3SP30 and VNH5019A-E chips contain a full H bridge to drive motors with currents up to 30A.

Arduino VNH3SP30, VNH5019A-E motor controller libraryĪrduino library for VNH3SP30, VNH2SP30, VNH3ASP30 and VNH5019A-E based motor controller boards.

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