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The signal terminal needs to be input with one 50 HZ square wave, then the duration of high level pulse, which is used to control signal cycle, can control speed and forward/backward rotation as well as stalling. The duration of high level corresponds to a speed. When high level is 1ms~1.5ms, servo rotates forward(the rotate speed is the fastest when it is 1ms, the higher the lower, servo will stop rotating when reaching 1.5ms). When high level is 1.5 ~2ms, the servo rotates backward(The servo stops rotating when reaching 1.5ms, when the duration is closer to 2ms, the closer, the faster. The backward rotation speed, the fastest when reaching 2ms)
This servo carries meso-position adjustment potentiometer(it can only be seen by peeling off the outer cover and circuit board). We can set high level pulse at 1.5ms to observe that whether servo stops rotating. If it doesn't stop rotating, we keep adjusting the potentiometer until it does.
Features:
Applies to model airplane / Model car / robot
Torque: 5.5kg/cm (at 4.8V)
Speed: 0.22sec/60°(at 4.8V)
Working voltage: 4.8v-6v DC
Temperature: 0℃-60℃
Current: Weight: 38g
Dimensions: 1.57 x 1.61 x 0.78 inches (4 x 2 x 4 cm)
Package include:
1 or 2 x 360 Degree Continuous Rotation Servo Motor
Loren M. Williams
Reviewed in the United States on February 2, 2024
Notice the bottom picture for this servo. It clearly shows a hole for an adjustment potentiometer. The picture clearly contradicts the description, down in the specs, which reads, "This servo carries meso-position adjustment potentiometer(it can only be seen by peeling off the outer cover and circuit board)." Reviews indicate that the product now is not the same as some reviews. It is unimaginable that the very convenient , once-existing potentiometer hole would subsequently be covered so one has to 'peel' off the outer cover to get at it, so one can only conclude that the hole would be the improvement, as shown in the picture. But nope, I bought two of the servos, and there is no hole, as stupid and infuriating as that is. The picture lies about that feature. Of course I can deal with 'peeling' two servos, but I was hoping to buy thousands of them. My customers will not be pulling servos out of my product to 'peel' them, when they could easily tweak them if they had an accessible pot. Servos must have an accessible potentiometer to be of any use to me-- and probably to you. I will, hereafter, avoid these servos, because they have no accessible pot, and this brand, because they don't care enough about their customers to take down that lying photograph. Why DON'T they put a hole for the pot? By the way, the servos seem to work fine. Two whole stars worth! EDIT: I took one of them apart to access the pot. I examined the circuit board with a USB microscope looking for the alleged "meso-position adjustment potentiometer," but it doesn't exist. So there is no pot at all. If you can't stop a continuous rotation motor, you can't use it!
P. Larsen
Reviewed in the United States on July 13, 2023
Looks like 1.5ms isn't working on an old NodeMCU 8266. The description claims a potentiometer exists inside the unit under the PCB but there's none, not on the PCB or otherwise. And the unit just keeps spinning event at 1.5ms. The site referred to in 2017 comments/Q&A has expired certs so the reason this is cheap is "it's dead Jim". Having to manually adjust several servos to use them together just seems like a bad design idea.
Chris g.
Reviewed in Canada on April 1, 2023
Add say mini servo motor they are full size servo but the work well
Walter Martinez
Reviewed in the United States on August 24, 2022
I sell some Arduino based robot kits and these worked great with it. I wish they were cheaper, but at least they work and PWM 1-2ms signal input is accurate no need to calibrate so far 1.5ms signal stops it. Each servo comes in its own nice product box with accessories. It works with my Futaba based wheels. Want sometthing that works the first time get these.
Martin Lundquist
Reviewed in the United States on June 16, 2022
Good price, excellent quality, thank you
Customer
Reviewed in the United States on December 26, 2021
The media could not be loaded.
Michael G Conklin
Reviewed in the United States on August 22, 2020
Servos didn't work properly they keep turning in the same direction they do not stop with the position of the control transmitter servo keep turning in the same direction
Caleb
Reviewed in the United States on December 14, 2020
Did not receive quite what was pictured, but an equivalent - not a big deal just made it tricky to identify among other items received. Packaging is not labeled with the servo specs so if you put one in a drawer you might want to label it.Both work out of the box. A little noisy but functional.
José Gabriel Serrano Danner
Reviewed in the United States on May 10, 2019
Good product
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