TowerPro SG90 Micro Servo 2pk
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- Pack of two TowerPro SG90 micro servos
- Great for small projects on a budget, most notably the MeArm
- Includes servo arms and screws
- Analog modulation
- 25cm connector cable
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The TowerPro SG90 Micro Servo is a very affordable and versatile servo with a wide range of applications for serious hobbyists working in robotics and related fields.
Bearing type: Bushing
Certifications: CE, RoHS
Connector cable length: 25cm
Connector type: JR
Dead bandwidth: 1us
Gear type: Polyoxymethylene
Motor type: 3-pole
Operating voltage: 4.8v
Potentiometer drive: Direct
Servo casing: Plastic
Size: 23.0 x 12.2 x 29.0 mm
Temperature range: 0°C - 55°C
Torque: 1.8 kg/cm
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|Sold By||EdwardWireless||Amazon.com||anwing||Qunqi C||Leonee||Leonee|
|Item Dimensions||2.5 x 3.6 x 0.5 in||3.25 x 7.25 x 1 in||2.9 x 3.6 x 1.8 in||2.9 x 5 x 0.9 in||3.5 x 5.8 x 0.7 in||2.5 x 6.2 x 0.7 in|
Top customer reviews
Once you've done that, you will find that the motor won't turn, right around a setting of 90. Mine stops at 89 and 90, rotates very slowly at 91 and just a bit faster at 88. When you send higher, or lower values, the motor will spin faster, in one direction or the other (fastest at zero and 180). NOTE: This "stopped" position may drift a bit, after a few minutes of 'warm-up', or after running the motor. I've found that, if I power up the unit, with a value of 90, it may make random 'clicks' as it isn't quite at a dead stop. If I send it a 91, it will go quiet for a few minutes, but then after it has warmed up I have to send 90 again. Then, if I run the motor for a minute and go back to 90, it might not stop as the 'center' is now at 91. Not a big deal, as you can cut power to the motor, to keep it from running when you don't want it to. But, if it were critical I would probably look for a dedicated continuous servo, or switch to a stepper motor.
Found a little sliver of odd metal, like a piece of stripped thread loose in the case, so I made sure it was clear of the gears and such, and Viola' - the little bugger does the full 180. So I melted a hole in the case with a nail and shook it out. Now I got two fully functional and downright cute little servos for a really great price.
Anyone that buys enough Chinese components knows you sometimes get little oddities along with them - Last year I bought a bunch of 100 farad "Super" Capacitors and three FREE dead flies included in the baggy, lol.
My dog doesn't seem to mind, and is now conditioned to start looking for the laser dot when ever he hears them move. Also, they are louder than you might expect for their size.
But for the price, one can't complain too much. These are great for small arduino projects, and if I break one I'm not going to lose any sleep over it.
Update: Ran the car for a while with a 5 and 7 year old driving and the servo held up nice. I know its not meant for a car but its holding up nice in a 1 18 sct.