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Description
- Stemedu HJ Digital Servo Tester can be synchronized output control 4 servos and used to compare the performance steering gear control of the steering servo output signal can be accurate to 2us (1 milliseconds = 1000 microseconds), you can test the steering gear is able to respond to subtle changes With PPM signal test function in the display, the input PPM signal changes while the input the PPM signal synchronization output to the servo Energized automatically enter manual mode (Manual) 20us 50H analog servo signal cycle, frequency 50Hz, rotary potentiometers to decrease or increase the width of the output pulse.
Specifications:
- Material: Plastic
- Color: Blue + black
- Input voltage: DC 5~6V
- Output signal width: 800~2200us
- Package size: 14 * 10 * 3cm / 5.5 * 3.9 * 1.2in
- Package weight: 39g / 1.4oz
Button the Select (Note: the key switch function, circulation patterns)
- 1. S-1 manual mode (Manual)
- 2. S-2-bit mode (Neutral)
- 3. S-3 automatic mode (Automatic) Keys pulse width
Keys pulse width
- 1. 50H analog servo signal cycle 20us frequency 50Hz
- 2. 125H digital the steering gear a signal cycle 8us frequency 125Hz
- 3. 250H Digital Servo signal cycle 4us frequency 250Hz
Ryan LandShark
Reviewed in the United States on December 31, 2024
Awesome and handy as can be for working with servos
Steve
Reviewed in the United States on October 28, 2024
Arived on time. Would buy from again. Could use better instructions with wiring diagram.
Patrick M.
Reviewed in the United States on March 25, 2023
Bought this while building a new RC plane and it was very convenient having this to position my servos precisely when installing the control linkages. One of the plugs on mine appears to be dead so I can only test 3 servos at once instead of 4, but that's not a big deal. Overall it's a decent cheap servo tester that gets the job done.
Robert
Reviewed in Canada on September 6, 2022
Pour le prix, l’unité rencontre mes attentes
Larry Mickelson
Reviewed in Canada on October 30, 2020
I recommend this servo tester.
Mike
Reviewed in Canada on January 20, 2020
First impression: Item looks sturdy enough. Used to run a couple servos through a small test, worked flawlessly.
Kai
Reviewed in the United States on July 18, 2019
Works great. Love it
S. Knight
Reviewed in the United States on June 17, 2019
Using this to bench test motors common to FIRST robotics compeition, CIM, BAG, 775, etc. Just like an RC controller PWM, 1500pwm is neutral, 2200 high is forward, 800 low is reverse. Very simple. Having the screen is key for actually testing motor outputs in mid ranges. Will definitely buy more of these for the lab, and my own drone motor use.
vlad m.
Reviewed in the United States on February 2, 2019
Works as it should.
Tiger
Reviewed in the United States on December 21, 2019
Bought two, all works well.But I was very curious how accurate these servo testers are. I tested them.One has pulse width accuracy about +0.8%, the other about -0.5%.These numbers seem good, but considering the advertised 2us accuracy,they are pretty far off. For example, for a 1500us pulse, they are off by +12usand 7us, respectively.I think they might mean the resolution is 2us, not accuracy.
David M
Reviewed in the United States on April 26, 2019
Great tool to test all escs, motors, etc.
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