Thank you I almost fried my board do you have a schematic or diagram for this project with IR added also? On the third press the motor stops. So maybe you can help: I think I am under the current draw with. Hi Soundguy66, Shutdown start as soon as I start the motors. The following Arduino sketch shows how to control a single motor. You are commenting using your Twitter account.

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Anyway — I prefer the existing behaviour of either forward, or backward or open.

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

You can always change the direction of a motor by reversing its wiring. Powered by WordPress and Hybrid by Bajdi. 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. This is the input voltage ,otor the L chips.

That can be a significant problem. Does it reset as soon as you start the motors, or after you load them down?

Fill in your details below or click an icon to log in: Hookup instructions are provided by the comments. With a claim like that I just had to buy one, but I must confess that I have no idea what I will do with it.


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

Here is the sketch to test the module with 2 small DC motors:. It’s a de-coupling problem, read: 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 By continuing to use this website, you agree to their use. To find out more, including how to control cookies, see here: The voltage used to drive the chip is the same voltage used to drive the motors.

There should always be a nF cap between Vcc and ground close to the AVR to protect against high frequency spikes. The truth table for a single HG L110 chip is as follows: Without them, switching the motors on and off will cause voltage spikes on Vcc that will likely cause the AVR to l910. I still have no idea whatsoever in how to attach this onto my arduino.

Leave a Reply Cancel reply Enter your comment here This site uses cookies. I am powering the motors from the same 5V in a 4 x 1.


This is why some of you are frying the ICs, sorry. Uh, the pin connections are described in the beginning of the code. What is the current draw for the motors? I can get one going but then I connect the other motor everything shuts down. Otherwise, the regulator could goes into an over-current protection mode and shut down.

I think I am under the current draw with. Notify me of new comments via email. This would reset your motors. The value of these capacitors depends jotor the current draw of the motors, but I like using uF caps as a safe bet.

Each motor channel uses the same truth table as above. Thanks for your help In the data sheet it shows a square wave mitor someone tell me about that?

One input is used to select the motor direction while the other is used to control the motor speed.