The RM-0090 is RC servo motor with bidirectional continuous rotation and linear response to PWM. The default neutral position (N.P.) is at 1500 us, but this can be adjusted by sending an desired PWM width  (eg 1400 us) and holding the red button for 7 sec. PWM pulse from 1450 to 1475 (N.P. - 50 to N.P. - 25) and from 1525 to 1550 (N.P. + 25 to N.P. + 50) is for FAST STOP, but PWM pulse from 1475 to 1525 (N.P. +/- 25) is for FREE RUNNING STOP. Pulse widths above the N.P. + 50 result in counterclockwise rotation, with speed increasing as the pulse width increases; pulse widths below the N.P. - 50 result in clockwise rotation, with speed increasing as the pulse width decreases.



Just attach a wheel and you have a mobile robot that can be controlled using an RC signal or a simple direct connection to a single microcontroller I/O line without any additional electronics. 

RM-0090 servo motor have three wires: black, red and white.

  • black = ground (GND, battery negative terminal)
  • red = servo power (Vcc, battery positive terminal)
  • white = servo control signal line


Key Features:

  • Bidirectional continuous rotation with linear response to PWM
  • Control interface: RC servo pulse width control, 1500 ± 50 usec default neutral position
  • Button for adjusting the neutral position
  • RPM : 0 to 71 (7.4 V) ; 0 to 62 (6 V)
  • Working torque: 9 kg•cm (6V) ;  10 kg•cm (7.4V)
  • Accepts four mounting screws
  • Metal Gear with Ball Bearing
  • Easy to interface with any microcontroller or PWM-capable device 
  • Very easy to control with PBASIC's or SX/B's PULSOUT commands

Motor
Model RM-0090
Rotation Bidirectional Continuous with Linear response to PWM
Communication Pulse-width modulation (PWM)
Operating Voltage range 4.8 - 7.4 V
Speed @ 5V (no load) 0.23 sec/60° -> about 43 RPM
Speed @ 6V (no load) 0.16 sec/60° -> about 62 RPM
Speed @ 7.4V (no load) 0.14 sec/60° -> about 71 RPM
Stall torque @ 5V (locked) 8 kg•cm
Stall torque @ 6V (locked) 9 kg•cm
Stall torque @ 7.4V (locked) 10 kg•cm
Idle current @ 6V (at stopped) 10 mA
Idle current @ 7.4 V (at stopped) 10 mA
Running current @ 6V (at no load) 400 mA
Running current @ 7.4 V (at no load) 500 mA
Stall current @ 6V 2.3 A
Stall current @ 7.4V 2.5 A
PWM width range 500 - 2500 usec
Neutral position default 1500 ± 50 usec ; adjustuble with red button
Clockwise rotation When PWM width between Neutral position & 500 usec (0 to 100 %)
Counter Clockwise rotation When PWM width between Neutral position & 2500 usec (0 to 100 %)
Dead band width 4 us
Maximum travel When PWM 500 usec, servo rotate 360 degree in CW direction; When PWM 2500 usec, servo rotate 360 degree in CCW direction.
Bearing Ball Bearing
Gear Material Metal
Output Gear 25 T / diam. 5.80 mm
Connector wire length 32 cm
Dimensions 40.8 x 20.2 x 39 mm (see drawings)
Weight 57 g

Set contains:

     1x RC servo motor RM-0090

     4x Metal sleeve

     4x Rubber

     4x M2.5 screw and nut

     1x Servo shaft A

     1x Servo shaft B

     1x Screw for shaft



Continuous rotation Servo Motor RM-0090

  • Brand: EMoRo
  • Product Code: RM-0090
  • Availability: In Stock
  • $15.00

  • Incl. Tax: $15.00

Related Products

EMoRo Basic Robot kit

EMoRo Basic Robot kit

Designed to encourage logical thinking and technical curiosity in a fun, engaging way, the EMoRo R..

$145.00 Incl. Tax: $145.00

EMoRo 2560 controller

EMoRo 2560 controller

The EMoRo 2560 is the first Arduino compatible controller with CE certification. Built around an AT..

$48.00 Incl. Tax: $48.00

EMoRo Pro Robot kit

EMoRo Pro Robot kit

 Designed to encourage logical thinking and technical curiosity in a fun, engaging way, the E..

$185.00 Incl. Tax: $185.00

EMoRo Advanced Robot kit

EMoRo Advanced Robot kit

Designed to encourage logical thinking and technical curiosity in a fun, engaging way, the EMoRo R..

$177.00 Incl. Tax: $177.00

Positional Servo Motor SM-0090

Positional Servo Motor SM-0090

The output shaft rotates in about half of a circle, or 180 degrees. It has physical stops placed in..

$15.00 Incl. Tax: $15.00

Wheels

Wheels

Wheels for robot bla bla bla ... with 6 screws for servo shaftSet contains:     ..

$5.00 Incl. Tax: $5.00

RC servo drive pack

RC servo drive pack

RC servo drive pack contains two servomotors RM-0090 and accessories for mounting servos on the chas..

$34.00 Incl. Tax: $34.00

Alkar SET

Alkar SET

The output shaft rotates in about half of a circle, or 180 degrees. It has physical stops placed in..

$22.00 Incl. Tax: $22.00

Digital Servo Motor  (Standard and Continuous Rotation) DM-0100

Digital Servo Motor (Standard and Continuous Rotation) DM-0100

DM-0100 is digital servo motor with two working modes: 360 degree continuous rotation and sta..

$17.00 Incl. Tax: $17.00

PWM-DC motor driver

PWM-DC motor driver

PWM – DC motor Driver used to control DC motors with PWM signal. The default neutral position (N.P...

$9.90 Incl. Tax: $9.90

Mini RC servo SM-S2309H

Mini RC servo SM-S2309H

Mini RC servo motor with mixed (plastic and metal) gears; included servo horns and axle screw...

$7.00 Incl. Tax: $7.00

Continuous rotation servo SM-S4303R

Continuous rotation servo SM-S4303R

The SM-S4303R is a standard-sized servo that has been built by SpringRC specifically for continuous ..

$11.00 Incl. Tax: $11.00

Servo motor Mount

Servo motor Mount

Black anodized aluminum servo motor mount.In the box:1x Aluminium servo motor mount2x T-nut2x M3 scr..

$3.50 Incl. Tax: $3.50

Tags: RC servo motor, servo motor, motor with conituous rotation,