2.1g RC Micro Servo 2g Sub Mini servo 180 Degree DM-S0020 4.8V-6V for RC Hobby Parts (1)

This servo works well. It has decent strength for it size and can work with many types of receivers. Its not small or light enough for ultra light RC airplanes for works good for park flyers or small RC vehicles, tanks and robots!

Servo wasn't even connected to anything yet, I was just testing control from radio, and it locked and seems to have internally shorted - case deformed as if melted.UPDATE: Seller reached out after seeing my review mentioning failure and offered full refund. This was much appreciated and refund was quick to post. Raising review from 1 to 3 stars just based on customer service.

Using an Arduino with 5V supply, and running a sweep with the Servo library from 0-180 in 1 degree increments, this servo moves smoothly through the entire range, seems free of jitter, and has steady holding force over the whole range. Wiring this up was trivial - it worked from the 'duino's GND, 5V, and PWM pins, with no other components.Two notes regarding the servo's behavior - the default Arduino Servo library defaults to a PWM range [544-2400] ms, which only gets about 160 degrees of movement from this servo. If the library is initialized with min/max of 500 and 2500, this servo does move the entire 180 degrees. Also, on a Renesas-based device (e.g., Uno R4 Wifi), there's a bug in the latest release (1.2.1) of the Servo library (this was written on 2024-06-01), but the bug is fixed in the master branch. By pulling the latest code in from the repo, I was able to get this servo to work smoothly on a Uno R4 as well.

* Updated * Used it in an Orlandoo hunter, burned out within 10 minutes, not stripped the motor stopped workingUpdate: seller reached out to me after m my review and offered a full refund without me asking, great customer service from this seller!