9g Continuous Rotation Servo - FS90R (1.5kg/cm)

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100% of 100
SKU: CE09377 Brand: Feetech

Continuous rotation servos are perfect for adding small form factor motors and wheels to robots.

$6.95 AUD, inc GST
$6.32 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Delivered by Mon, 4th of Mar

Quantity Discounts:

  • 6-50 $5.81 (exc GST)
  • 50+ $5.37 (exc GST)
- +

14 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

Shipping:

  • $6+ Standard (5+ days*, tracked)
  • $10+ Express (2+ days*, tracked)
  • FREE Pickup (Newcastle only - must order online*)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

Create your own small form-factor robot with these FS90R servo motors.

Adjust the zero or middle point by adjusting the potentiometer underneath with a screwdriver. A middle point is a pulse width where the servo motor isn't moving. Higher pulse widths will start the motor moving in a clockwise direction and lower, counter-clockwise.

Grab a couple of these sweet wheels to add motion or use the included horns to drive gears or push-rods.

If you need a bit more torque for the same size and voltage check out this version with metal gears.

Specifications

  • Model: FS90R
  • Weight: 9g
  • Arm Angle Limit: No Limit
  • Operating Voltage: 4.8V - 6V
  • No load current: 130mA @ 6V
  • Rated Continuous torque: 0.5kg/cm @ 6V
  • Peak Torque: 1.5kg/cm @ 6V
  • Stall Current: 800mA
  • Gear Type: Plastic Gear
  • Size: 22.5mm x 12.1mm x 27.7mm
  • Spline: 21T

Includes

  • FS90R Continuous Rotation Servo
  • Servo Horn and fastener pack

Dimension Drawing

fs90r dimension drawing

Examples

Raspberry Pi Pico - Micropython

import machine
import utime

pwm1 = machine.PWM(machine.Pin(0))
pwm1.freq(50)

min_s = 1300
max_s = 8500

mid_p = int((max_s - min_s)/2)

def map_range(x, in_min, in_max, out_min, out_max):
    mapped = (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min
    return int(max(min(mapped, out_max), out_min))

def servo_wrapper(val):
    return map_range(val, 0, 180, 1500, 8000)

# Useful while attaching servo horns
# or finding the zero-point for continuous servos

# while True: 
#     pwm1.duty_u16(mid_p)

while True:    
    for i in range(0,180,10):
        print('Angle/Speed ', i)
        pwm1.duty_u16(servo_wrapper(i))
        utime.sleep(0.2)
        
    for i in range(180,0,-10):
        print('Angle/Speed ', i)
        pwm1.duty_u16(servo_wrapper(i))
        utime.sleep(0.2)

Check out our other options to make your projects move!

Maker Favourite Servos - Add them to all the projects where you need movement!

High Power Servos - perfect for RC and Mechatronic projects:

Servo Accessories - Essentials for any robotics project:

 

Smart Servos - Offload some computing and use the latest in Servo Technology!

Product Comments

Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

  • $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
  • $6+ for Standard Post (typically 6+ business days, tracked)
  • $10+ for Express Post (typically 2+ business days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11+ for Pack and Track (3+ days, tracked)
  • $16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!

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