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  • Virtuabotix Two SG90 9 Gram Micro-servos
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Virtuabotix Two SG90 9 Gram Micro-servos


Available from these sellers.
  • Easily added to any Microcontroller project!
  • Why get one when you can have two!
  • Arduino Pin-out and Coding information included
  • This small 22 x 12 x 29 mm only weighs 9 Grams but produces a torque of as much as 1.3kg/cm @ 5V
  • This device may require as much as 500 mA of current draw at its peak to operate, a separate power supply or dedicated high current rail is recommended for its operation especially when combining multiple Servos.
2 new from $9.95


Product Details

  • Product Dimensions: 0.9 x 1.1 x 0.5 inches
  • Shipping Weight: 3 ounces
  • ASIN: B006RCLJPA
  • Item model number: SG90
  • Amazon Best Sellers Rank: #155,128 in Toys & Games (See Top 100 in Toys & Games)
  • Average Customer Review: 4.2 out of 5 stars  See all reviews (20 customer reviews)
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Product Description

With this upgrade your projects will finally know the power they have long sought;
the power to bend the world around them to your will! Or, you could just move stuff around...

Customer Questions & Answers

Customer Reviews

It works great and are very responsive.
Adrian Montero Ulate
I use mine to act in the same way as heavier servos in a prototype for a much bigger robot I am designing.
Tony Reynolds
Ideal if you are looking for small but powerfull servos, highly recommended.
Daniel

Most Helpful Customer Reviews

28 of 29 people found the following review helpful By Mickinmind on April 24, 2012
Verified Purchase
I previously had given these servos a poor, (1 star) review and returned them, but after talking with the seller, and at the suggestion of the people at Virtuabotix, I went back and tested my control set-up. I found my amperage output was far to low, (30mA) for these servos. Because I had already sent them back, I was unable to test the servos at the higher needed amps ,( in the 500mA peak range), but I am removing my previously "bad" review. I do know that even if there had been a problem, Virtuabotix would have stood behind their product and remedied it.
The reason I have given 5 stars is because what I can say 100% is, YOU CAN TRUST THIS SELLER!!! They will follow through even on the little orders.
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11 of 11 people found the following review helpful By DKMSW on April 27, 2012
Verified Purchase
Product arrived as described: Two micro servos with accessories and a pin-out diagram for Arduino. This was the first time using a servo. Out of the box I connected the servo to the Arduino board, attached one of the plastic arms and uploaded the servo sweep program. The servo worked great! Next, I am going to try to make a servo circuit with a 555 timer. Just be aware the servo feels very cheap. It's small, plastic, and feels like the gears may give out early. But this package is a great value for people just starting out, learning about servos, circuits, and Arduino.
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8 of 9 people found the following review helpful By Katnruss on April 27, 2012
I was a newbie when it came to creating electronic projects with servos. Virtuabotix provided great support and they helped me get setup and running in no time. Now I enjoy making all sorts of moving electronic projects with these servos. I am also thankful for the Arduino programming support from Virtuabotix.
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2 of 2 people found the following review helpful By Tim Nelson on November 26, 2012
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I have worked with servos my whole life with model airplanes, boats etc. and these are going into my laser targeting system, based on movement.
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2 of 2 people found the following review helpful By Tony Reynolds on October 22, 2012
These two servos come bundled with the servo arms to connect the servos to just about anything that can move. I use mine to act in the same way as heavier servos in a prototype for a much bigger robot I am designing. I have used them to use test software to control the servos, and I have used one to make a rotating sensor platform for sonar. They do have a minimum current draw so please give them that 0.5A supply-- if not, the servo might behave as if it is stuck.

I'll use the as my "go to" servos for some time to come.
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2 of 2 people found the following review helpful By Matthew Long on September 29, 2012
Verified Purchase
This is an unbelievable price, however you get what you pay for. The action is quite twitchy. This is definitely at toy. That being said, it is a servo and functions as one. If you are looking to do basic animation then this should work fine.

I did run a no load test continuously moving the arm thru its full motion and did notice that it started to heat up quite a bit within a minute. I did not run it until failure but would not expect it to last long with a frequently repetitive task.

I was hoping for something less twitchy but I gave this 3 stars because what can you expect for this price.
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2 of 3 people found the following review helpful By ner14 on November 14, 2012
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Each of the little servos is relatively cheap and despite their small dimensions they are still pretty useful for small applications such as small intro projects made by students and hobbyists. For my purposes I had to pair it with the Arduino Uno and found it was fully compatible. Bottom line: nice buy for beginners.
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Meh. I ordered these trying to find something better than the less-expensive bulk TowerPro SG90s that I had ordered. Turns out that these ARE the TowerPro SG90s put in a little Virtuabotix bag. I paid more per unit and they came with fewer accessories than my cheaper bulk ones - also ordered from Amazon.

I use this for a retractable bed-leveling probe on my 3d printer. The probe is a little plastic arm with a microswitch at the end. The arm is attached to the servo using one of the horns. The printer starts with the servo-mounted bed probe in the stored position, nearly parallel to the bed. During the probing process, it lowers the probe to be perpendicular to the bed and then lowers the print-head until the switch activates. It probes four positions and then uses this to mathematically adjust the print positions to print level to the bed and then stores the probe.

During printing, the servo is constantly "twitching" and cannot seem to hold the store position consistently. Also, over time it loses its ability to repeatedly deploy at the same angle. Every couple of weeks, I need to change the angle setting in my firmware in order to have it positioning the probe correctly. I have had one of these servos fail completely. We will see if the other fares better but it is showing the same twitchy behavior.

My printer keeps the servo energized and held in the storage position for many hours while printing. Duty cycle may be a part of my poor experience. If you don't need accurate and reproducible positioning, like for a model plane/car where you are constantly compensating, and don't need to have them constantly they may work better for you. I will look elsewhere.
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