Refer to the table below for pin header connections. Each set of screw terminals is used to connect a motor. It’s a de-coupling problem, read: INA and INB could be supplied with logic signals from any of the digital pins, but the motor speed would not be variable as it would run at full speed in either direction. In this case, the AVR would also reset if you applied a heavy load or completely stalled the one motor while it was running. Do you think it would be possible to control this driver with a joystick?

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By continuing to use this website, you agree to their use. Leave a Reply Cancel reply Enter your comment here We recommend using input 1A to control the speed of each motor and input 1B to control the direction.

To find out more, including how to control cookies, see here: I am powering the motors from the same 5V in a 4 x 1. It looks from the data sheet I need some sort of square wave but I am not sure. In this case, the AVR would also reset if you applied a heavy load or completely stalled the one motor while it was running.

Dual Channel Motor Driver Module HG7881 / L9110 up to 12VDC 800mA Per Channel

As a side note — despite what the datasheet for L H-bridge module claims, both 1 and both 0 are giving open outputs i. What are left and Right for? With a claim like that I just had to buy one, but I must confess that I have no idea what Moror will do with it. I knew, there is another motor driver that can work by pre-configured step resolution like A but I found this motor driver is more cheapest rather then A Motor drivers typically have what is called a truth table that determines the effect of its inputs.


Thanks for your help L110 the data sheet it shows a square wave can someone tell me about that?

There should also be capacitors close to the motor drivers between Vcc and ground. The board has 6 male pins and 2 double terminals. This is the input voltage for the L chips. The motors connect to the 2 terminals. This example should be easily adaptable mootr other microcontroller platforms.

Of course you could control it with a joystick with the help of a micro controller ….

First, if you are driving both motors off of the 5V Vcc, you need to make sure your power supply or voltage regulator can handle the current. You can download the datasheet of the chip here.

There are a couple of concerns here. These caps provide a ‘local battery’ effect providing current when the motors switch on, so that the voltage of Vcc doesn’t drop too low. For PWM control, the motor windings should be open circuit in the un-powered cycle and only short circuit to brake stop.


Circuit diagram The Sketch:: This effectively shorts the motor windings which attempts to bring the motor to an abrupt halt. What is the current draw for the motors? Leave a Reply Click here to cancel reply.

Learn how your comment data is processed. You can always change the direction of a motor by reversing its wiring. If you use only one motor you can delete halve the analogWrite functions. Email required Address never made public. Same thing for motor B.

LS Dual-Channel H-Bridge Motor Driver Module Philippines | Makerlab Electronics

Note that the actual direction of “forward” and “reverse” depends on how the motors are mounted and wired. The chips want PWM input. Below 80 and the speed was a little erratic. I still have no idea whatsoever in how to attach this onto my arduino.