RC Digital Servo Tester 1 Channels Motor Servo Controller Centering Tool with Over-Current Protection & 2 Control Modes for RC Car Airplane Robots Tester Tool

Needed an easy way to set up servos and test, this worked just fine, worth the time it saved to make up a temporary solution, and I can test servos easily whenever I need to. I cut the USB 2.0 B end off a cable, wired up +5v and Gnd to this board, and plugged into a 5V 3A USB 2.0 adapter, worked great.I haven't checked the signal timing / accuracy, but it should be good enough.Operation - the buttons set the servo to "center" mode, causing the servo to immediately move to center - if you press a 2nd time, the servo will immediately return to the position dictated by the potentiometer.Only way it could have been better would have been to have a USB cable for power.

Nice the hands are able to move now! 😂 I'm so glad I got this as it is straight forward no need to complicate things right away.I'm no expert at these things yet sorry in advance for my tiny brain but it is mostly plug and play with your servos. Although you do need to use a separate power source and be sure the volts do not exceed 4.7v being the limit on most servos I believe. I kinda ran a 9v battery with it still with no problems but I tend to do these things often.Good for experimenting but I dont think it can constantly rotate so it's mostly 180° back and forth motions with the dials. This is great if you're doing something like me trying to figure out the next Bionic hand and such. May not be what u need for a RC Drone or Car tho, but again I'm no expert.Works with the hands sold by the same company very well.Edit: HOLD ON! Here is what I used on the picture actually before I forget. Sorry, I tend to work on these things on my spare time and that's not a lot... So, 9v will likely not be good directly.. unless u can regulate it or something. With this green light thingy I have it hooked up to 5V which is really good too I guess. The other pic also that blue with red display thingy as you guys probably know is a buck converter. This can help if u do use a 9v. As I said the volts need to be specific if not it will not be able to function at all. Great hand either way!

The media could not be loaded. Compact and works. Can hook up two servos. Nowhere does it say on the instructions which are accessed via qr code if the white plug can be used to power it. I took a chance and plugged the balance connector of one of my 2s lipos into it and it worked fine. The blue connection is where they say to power it up.I kinda wish this was in an enclosure of some sort. Just an open printed circuit board.

Very sturdy and well built. Works as expected and has a 2-digit voltage display which comes in handy to check battery supply voltage. I took one point because there were no predrilled mounting holes.

Got this tester for use by my robotics students. It is a great little unit that is easy to use. The button provides access to two modes: Neutral (centers the servo) and Manual, which allows the user to turn the servo based on the position of the potentiometer dial. Small LEDs, located just left of the digital voltage display, show which mode is selected. There are two ways to power the board: one accepts the standard JST-XH charging balance connector, and the other accepts a direct wire connection. Would have been nice to have a female T-plug connector, but you can't have everything. Well worth the price.

Knobs are a bit close together.Can only control one servo at a time.Position at startup needs a delay factor. (When you initiate a particular servo, it sends a full speed signal that "slams" the servo to the correct position.)I think they call this board a "servo tester".As a servo tester, ok, it does great. All my servos were tested.But it's got very limited capability beyond just a tester.

This is only tester that managed to drive my servo to apsolute ends. with other servo tester my servo was only deflecting 60 degree in both direction. But with this one it drives 90degree in both direction from middle or all together 180degre. I have buy cople testers and and finally found one that actually dooing what i need it to do.Perfect.Thank you very much.

This works well for testing range of motion for control surfaces of DIY RC planes as well as centering servos before installing pushrods. Several things to note if you're using with the smaller RC micro servos:1. You should not plug in a LiPo battery to power the tester and servos unless you are positive that the servos can handle higher voltage. Typical micro servos (eg 5g/9g) operate with a maximum of 6V, so if you use a 2S Lipo you are exposing them to 7.4V or more, which may fry these smaller servos. Instead, you can use wire leads to connect the + and - terminals from an ESC to the blue power input block on the tester. I soldered some leads to a normal USB plug and was then able to use a cheap portable USB power bank to power the servo tester at a perfect 5V.2. The tester outputs from 500 - 2500 μs, whereas the typical operating range for servos is 1000-2000μs. Just be aware that turning the potentiometer knob to the ends of its motion may send a signal that is beyond the operating range of the servos; you do not want to keep a servo locked beyond it's maximum range of motion for long.