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SC15 Servo 17kg.cm@8.4V Serial Bus Servo w/ two modes: Servo 180° / Servo 360° - Waveshare 21568


As a kind of high-torque programmable serial bus servo, it can control the angle within 180° and can switch to the motor/stepper motor mode that can be rotated continuously through the program. There are two interfaces on each servo, which can be used in series. In theory, 253 bus servos can be controlled at the same time, and each servo can obtain information such as the current angle, load, voltage, mode, and so on. It is suitable for robot projects that require feedback on the angle and load of the steering gear, such as robotic arms, hexapod robots, humanoid robots, wheeled robots, etc.

If you want to know more about this product, please check its Wiki Page.


If you have any questions on this product please feel free to contact us.

*Disclaimer: The images are merely illustrative.


Product type

SC15 serial bus servo


17kg.cm@8.4V; 15kg.cm@6V; 14kg.cm@4.8V

Rotation angle

180° (servo mode angle control) / 360° (motor mode continuous rotation)

Pos sensor resolution

180° / 1024

Mechanical limited angle

No Limit

Operating voltage



high precision metal gear

idling speed

0.18sec / 60°@4.8V 0.16sec / 60°@6V

ID range



38400bps ~ 1Mbps


Position, Load, Speed, Input Voltage

Idling current

200 mA

Stalling current

1700 mA



Application examples

  1. Servos will provide various feedback like position, speed, torque lock, operating mode (servo mode, servo motor mode, etc.) for advanced projects requiring closed-loop automatic control

  2. Ideal choice for building quadruped robots, hexapod walkers, robotic arms and other robotic projects requiring multiple servos


* images here are for reference ONLY




UART serial bus control

Up to 253 servos can be connected in series at the same time


Note: though one channel UART is able to control up to 253 bus servos, due to the high power of the servos, it is necessary to consider whether the power supply solution is enough when using too many servos. The servo driver board is NOT included, please purchase separately if needed.



Large torque

Up to 17kg.cm torque on 8.4V voltage, suitable for building quadruped robots, hexapod walkers, robotic arms and other robotic projects requiring multiple servos


for reference only, the JETANK robot is NOT included.



Two-way feedback

The servos will provide various feedback like position, load, speed, and input voltage, in real time




Dual modes: servo or motor

Precise rotation angle control, on servo mode




Continuous rotation, on motor mode





Details introduction


Nylon and fiberglass case
Improved heat tolerance, size stability, rigidity, and mechanical performance




High strength aluminum servo wheels
Using T6061 aluminum alloy, good anti-corrosion performance




High precision copper and steel gears
Ingenious combination of the two, lower operating noise, better stability and mechanical performance



Outline dimensions





Resources & Services


Wiki: www.waveshare.com/wiki/SC15_Servo



Package Content

Weight: 0.07 kg

  1. SC15 Servo x1





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