AiTrip4Pack L298N Motor Drive Controller Board DC Dual H-Bridge Robot Stepper Motor Control and Drives Module for Arduino Smart Car Power UNO MEGA R3 Mega2560

Update:The more I use this board, the more I love it. It's been resilient to my own wiring errors, responsive across the PWM range, and tolerant of varied input voltages. I haven't yet had any functional issues that weren't of my own making! Bumped from 4 to 5 stars.Original review:This little board is fantastic for driving motors from microcontrollers. I'm using it to drive several Lego "power functions" motors (~500ma max current) from an Arduino, using a 9V power brick to supply the driver, and it performs beautifully, consuming only ~20 microamps (NOT milliamps) from the 5V signal pin. Voltage at the output is ~2V less than supply, as is common w/ H-Bridge drivers, so you may need to compensate by using a higher supply voltage, or just plan for reduced maximum power.Connection-wise, the ground pin is a common ground. The 12V pin can accept a wide range (7-30V) input. The 5V pin is powered by the voltage regulator on-board, and can supply power (I measured 5.06V) to other devices, or be used to tie an input high. In each input pin pair, pull one high, one low to drive the motor.The screw connectors were a little tight, but worked well once I got them moving. The connections and heatsinks all seemed solidly connected, and the board has through holes for affixing it to a base.These are a great deal the hobby robotics / electronics experimentation, and are very forgiving with respect to power supply.

Small size comes in handy for driving small DC motors. Can operate over a relatively broad DC power input range. Best to keep the power voltage as low as practical to cut down on heat dissipation if want to drive at higher amperages. Easy interface to microcontrollers. Can accept 3.3 and 5V microcontroller outputs.

What you get for the money is excellent however I found the quality to be a little disappointing. Some of the screws came stripped, it still works but will result in loose connections. Would recommend for projects

I really like this DC motor controller. I used this for a toy car project. It uses gears to reduce the standard high rpm (thousands of rpms) toy motor to a reasonable speed (~ 100 rpm) for a car or similar projects. Also allows forward and reverse. I have used this on several projects and will likely order more because of it's versatility and ease of use. And the price is so reasonable.

These are good motor drivers and they are a good value. They work as advertised and are nice to have a few on hand for projects