12PCS MG90S Servo Micro 180° 9G Servo Motor Geared Micro Servo Motor 9G Smart Robot Compatible with Raspberry Pi Project Car Helicopter Airplane Boat (180 Rotating)

Nice servos. Lots of power. Have a bit of a flat spot if you want to run them slow. Transmiter reaches 7% output before they take off. But turning down voltage to about 4v made them much smoother and slowed down 60% over the 7.4v i tried them the first time.

The gears are ALL plastic, false advertising. It broke under a teeny baby amount of load, DO NOT BUY

I purchased these servos to drive wheels in simple robot projects powered by microbit controllers. Found lots of projects online that use 360 degree continuous servo motors to power wheels, etc, these were perfect for my purpose, and at current prices due to global trade issues, these were available for a reasonable price. Also, at least the top gear on these servos is metal, and threaded to take a 2.5 mm small bolt. Very happy with purchase.

Arrived well packed and work as they should, good deal and would recommend and also would buy again

I have never used servos before. I maybe didn't understand exactly how they work, so here's my information I found by messing with the first one I took out of the box (360 degree version) *Evidently 360 degree versions are supposed to work this way, NON 360 degree versions are positional. The value (I used pin 9 to place the value to the orange wire of the servo) will set it's behavior. I don't know why I thought servos actually were locationally valued (ie 0 through say 360 would set the servo in a specific location but in fact.. It does not. It sets a speed and direction together. It is not locationally aware) So with that being said here is what I found that may help someone if they need to know how to start using these with an Arduino. I have a Duemillanov. Value information: - dead zone: 90 - 95 - Clockwise motions: 89 through 0 - Counter Clockwise motions: 96 through 180 - Negative numbers and numbers over 180 will not raise speed nor change direction. Example Arduino sketch I created. I also have one for using a rotary encoder to control the direction/speed values but I don't think there is enough space for that here). /* Servo Red wire = 5v Positive Servo Black(or purple in my case?) wire = Ground Servo Orange wire = Arduino Pin 9 */ #include <Servo.h> Servo myservo; // create servo object to control a servo int pos = 95; // variable to store the servo position void setup() { myservo.attach(9); // attaches the servo on pin 9 to the servo object } void loop() { for (pos = 96; pos <= 120; pos += 1) { myservo.write(pos); // tell servo to go to position in variable 'pos' delay(100); // waits 15ms for the servo to reach the position } myservo.write(95); delay (500); for (pos = 95; pos >= 60; pos -= 1) { myservo.write(pos); // tell servo to go to position in variable 'pos' delay(100); // waits 15ms for the servo to reach the position } myservo.write(95); delay (500); }

Purchased multiple time for STEM class projects. Great quality.

Let's just address the obvious issue on these servos..... I believe that most folks purchase these with the assumption that it is a metal geared servo.... it's not. The only metal gear is on the output, the rest are gray plastic (you can see in the picture that I included). If you need these for a project that will put stress on the servo, do not use these. I had these in a delta wing RC plane and stripped 2 of them out just belly-landing into grass (no huge impact, just landed and the servos started making the classic whirring noise). For the price, they are adequate. You can't expect much out of a servo that costs $2.70 a piece. I have been using these in lightweight, foamie RC planes and they get the job done. However, any sort of hard landing or crash has stripped out at least one servo. I would not use these in anything that has higher value. They are pretty quick and have decent torque for their size. The output will rotate 180 degrees by hand, but I could not get them to go more than 90 degrees when hooked up to power. I've ordered 3 batches of these servos and at least 10% of them didn't work right out of the box. I managed to fix them by resoldering the wires (it's a tiny spot and not easy to do). Overall, these work great for cheap-o RC planes that won't be flying fast or high. They still get 3 stars in my book because they're very inexpensive and they do work..... they just aren't true metal-geared servos.

DO NOT BUY- these are clearly labeled and sold as 180° servos but only move 90°

Works as expected.

Working well