HiLetgo 5pcs L9110S DC Motor Drive Module Stepper Motor Drive Controller Board 2.5-12V H-Bridge Can Drive Dual DC Motor at The Same time or 4 Wire 2 Phase Stepper Motor

Here's a datasheet that you can make on your own: More information can be found by searching for l9110 motor drivers. I started with PWM at 10k and they accepted it, but as I increased the voltage, they became quite hot. I tried to stay above 20kHz to avoid audio issues, but that didn't work. Here's some more information: br>br> br>br>The HG7881 (L9110) is a small motor driver chip that can handle voltages up to 2. 12V with a continuous current of 800mA. Built-in output clamp diodes are included in these chips. Each HG7881 (L9110) chip can control a single DC motor with two digital control inputs, one for selecting the motor direction and the other for controlling the motor speed. PWM (Pulse Width Modulation) is used to control the speed. A truth table is used by motor drivers to determine the effect of their inputs. The truth table for a single HG7881 (L9110) chip is as follows: br>br>HG7881 (L9110) Truth Tablebr>Input Outputbr>IA IB OA IB Descriptionbr>L L L L Offbr>H L H L Forwardbr>L H L H Reversebr>H H H H Reversebr>H H H H Offbr>Note that the actual direction of "forward" and "reverse" is dependent on how the motors are mounted and wired. By reversing the wiring on a motor, you can change its direction at any time. br>br>Two of these motor driver chips are used in the HG7881 (L9110) Dual Channel Motor Driver Module. Because each driver chip is designed to drive only one motor, having two allows this module to control two motors simultaneously. The truth table used by each motor channel is the same as the one shown above. A motor is connected to each pair of screw terminals. The pin header connections are listed in the table below. HG7881 (L9110) Dual Channel Motor Driver Module Connectorbr>Pin Descriptionbr>B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B- B GND Groundbr>VCC Operating Voltage 2. IB Motor B Input B (IB)br>GND Groundbr>IB Motor B Input B (IB)br>IB Motor B Input B (IB)br>IB Motor 12V
A- A- A- A- A- A- A- A- A- A- A- A- A- A- A- A- A- A- A- A- A- A IB Motor A Input B (IB)br>Control the speed of each motor with input 1A and control the direction with input 1B.

Rylan Stark

| May 11, 2021

Get something else if you're not familiar with Ohm's law. That being said. . . br>To summarize, these are ideal for 5 volts and currents up to 500 mA. Unfortunately, the outputs have no current protection, but if you use a 10 ohm 1/4watt resistor on each output phase, you won't burn them out, even if you short the outputs *after* the resistors.

Livia Kennedy

| Dec 21, 2021

One isn't useful, as the headline suggests, but the others are simple to use.

Ira GODDARD

| Jan 30, 2021

There is no documentation available. After a lot of guessing, it appears to work. It appears to be a nice board, but I'm not sure what I'd be able to find on it. remark on the subject It's connected to an Arduino, which I'm using to control it.

Aubree Maddox

| May 17, 2021

For motor control, it works great with my Raspberry Pi/Arduino.

Walter Byers

| Jun 09, 2021

On three of the boards, the screw trermenal blocks had to be adjusted to fit mounting hardware. They functioned perfectly with motors ranging from three to nine volts.

Brixton Delgado

| May 07, 2021