Miuzei5 Pcs SG90 Servo Motor, Micro Servo 9G Mini Servo Motor for RC Helicopter Airplane Car Boat Robot Arm/Hand/Walking/Servo Door Lock Control with Cable Compatible with Arduino

After some issues with USPS, I finally got my servos in the mail. As the picture shown, the servo comes with three arms and attachment screws. One thing I would like to see is a very basic wiring diagram. Intuitively I got the wiring right but verified it with customer support. However it would be nice for beginners.Using the sweep example program in Arduino I wanted to test the five servos. All were tested and all worked. Note: the description states it will travel 120 degrees but the sweep program moves the arm 180 degrees but the arm only moves to about 170. They are advertised to be used for RC cars, planes, and drones and with plastic gears, are great for that use.Let’s see how they work under stress. I put five quarters (about 1oz.) in a bag and hung it from the larger arm off the servo. I ran the sweep program for 24 hours and it work just fine. I upped the weight to 15 quarters (3oz) and ran it for 24 hours. No issues.I wanted to see where it fail. I put 8 oz. (½ pound) on it and it swept the 170 degrees. At 12 oz. (3/4 pound) it swept at about 120 degrees. At 16 oz. (1 pound) it swept the 170 degrees but it was struggling.Overall, these are great little servos that should meet most of your needs. They work great for the money. There are higher torque servos out there but for RC use, you can’t go wrong with these.

So far, no complaints. Used 2 for aileron servos for my Flite Test Simple Cub RC plane after adding flaps. No load issues or brown outs. Factor center looked good and no drift yet. Wing had stayed trimmed well after 3 days of flying.Just ordered 5 more for my next build. If they hold up, these will be my servos of choice. Can probably get them cheaper but I've learned a long time ago...you get what you pay for. Spend a few extra bucks and make sure your project doesn't get destroyed cause you played it cheap! :-)Only 4 stars on durability since I haven't had a serious crash...yet..to see how they stand up.

I like everything about them so far . Perfect fit.

I tested all 5 servos on arrival and all work. However, each one had a 90 degree travel not the 120 degree travel expected and stated in the specifications. I gave durability a rating but I won't really know until they are in an airplane and flying. Economy shipping proved to be a pleasant surprise. I placed the order on 5/15 and I had the servos in hand on 5/17. Servos were in individual bags and the five of them were in a box with the outer container being a padded envelope. All in all considering what I paid for them I will keep them and use them in projects not requiring more than 90 degrees of travel.

All worked well as expected. For the price, can't be beat.