Feetech FT90r Digital Servo 360 Degree Continuous Rotation Micro RC Servo Motor Tire Wheel for Smart Car Robot

FT90R 9g Digital Micro 360 Degrees Continuous Rotation Servo For DIY STEM Education Robot 

Feature:

This FT90R Mini 360 Servo by Feetech is a great value multi-purpose micro size servo and
it's ideal for use with micro-controller systems like the BBC microbit, Arduino, Raspberry Pi and PICAXE. 
It's miniature size also makes it great for use in radio controlled models and small robot projects.
This is a 360 degree continuous rotation servo. 
Its operation is very different to that of a standard servo. 
Instead of going to a specified angle, this servo will be static at a 1.5ms pulse 
(a trimmer is included to tweak this), a longer pulse gives forward rotation and 
a shorter pulse give backwards rotation.

The FT90R continuous rotation servo converts standard RC servo position pulses into continuous 
rotation speed. 
The default rest point is 1.5 ms, but this can be adjusted by using a small screwdriver to turn the middle-point adjustment potentiometer. Pulse widths above the rest point result in counterclockwise rotation, with speed increasing as the pulse width increases;
pulse widths below the rest point result in clockwise rotation, 
with speed increasing as the pulse width decreases.

It comes with mounting screws and a range of horns to suit most applications.
You can use any servo code, hardware or library to control these servos, 
so it's great for beginners who want to make things move without the need for a motor driver board. 
These servos are fully compatible with our Servo:Lite board which is also
included in the :MOVE mini buggy kit for the BBC microbit.

1.servo continuous rotation 
2.Best choice for arduino robot
3.1.3kg.cm 360 Degree 
4.Digital version

Digital Micro 1.3kg.cm 360 Degree Continuous Rotation Servo 

The FT90R is a digital micro servo that has been built by FEETECH specifically for continuous rotation, offering an inexpensive and easy way to get your small turret spinning or miniature robot moving, especially when paired with our 60×8mm wheels designed specifically for this servo. 

Key specs at 6 V: 170 RPM (no-load), 21 oz-in (1.5 kg-cm), 9 g

The FT90R is a micro-sized digital servo that has been built by FEETECH (formerly known as Fitec) specifically for continuous rotation. At 6 V, it has a maximum rotation speed of around 170 RPM (no-load) and can produce up to 21 oz-in (1.5 kg-cm) of torque. The servo can be controlled using a direct connection to a single microcontroller I/O line without any additional electronics, which makes it a great miniature actuator for beginner robotics projects; just throw on a pair of wheels and your robot is ready to roll!

The FT90R continuous rotation servo converts standard RC servo position pulses into continuous rotation speed. The rest point is set precisely to 1.5 ms with a deadband width of ±20 µs. Pulse widths above the rest point result in counterclockwise rotation, with speed increasing as the pulse width increases; pulse widths below the rest point result in clockwise rotation, with speed increasing as the pulse width decreases.

The servo has a 10″ (250 mm) lead that is terminated with a JR-style connector and includes additional servo horns and mounting hardware. The following picture shows an example of the hardware that might be included (actual hardware could vary):

Feature

Micro Digital Servo 9g
Stall Torque:1.3kg.cm/18.09oz.in(4.8V)  

Dimensions:23.2 × 12.5 × 22 mm

Weight:9 g

Operating Speed :0.12sec/60degree (4.8V)

                                 0.10sec/60degree (6V)

Stall Torque :1.3kg.cm/18.09oz.in(4.8V)

Operating Voltage :4.8V~6V

 Control System :Digital

 Direction :CCW

 Operating Angle :360degree

 Required Pulse :900us-2100us

 Bearing Type :None

 Gear Type :Plastic

 Motor Type :Metal

 Connector Wire Length :20 cm

Dimensions

General specifications

Notes:

Full Packaged 

-Servo×1PCS

-Servo arm×1 bag

-GW:9g 

Picture:

The WHEEL:

Packing:

-PE bag (A servo + accessory)

 -FS90R-W wheel:1pcs

Application:

-All Analog servo:package1

-All Standard Size Digital servo:Package2

-All Small Size Digital Servo:Package3

-All Big Servo:Package4

Servo Potential Applications
1. Electric lock (anti-heft door lock servo) 
2. Luggage case lock servo 
3. Washing machine safety mechanism servo 
4. Water/gas valve control Servo 
5. Smart lamp Switch Servo 
6. Camera gimbal control servo 
7. UAV heavy duty servo 
8. Servo Release Servo Drop
9. Curtain Servo 
10. Automatic Perfume and liquids Sprayer Servo 
11. Smart bike gear change servo 
12. Electric car mirror servo 
13. Car seat adjustment servo 
14. Car window winding servo 
15. Medical equipment servo 
16. safety lock servo 
17. Robot servo 
18. Wheel servo 
19. Robot arm servo

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