Retail: $24.95
Price: $19.95 Discontinued notify me

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    Software Features

    Hardware Features

    Get ready to bring your robotic dreams to life with the RobotGeek 180 Degree Robot Servo! This metal-geared servo is perfect for building robotic joints and will help you create your own custom robotic arms, crawlers, and more! And because these servos use a standard PWM signal for control, they're easy to directly interface with microcontrollers like the Arduino!

    RobotGeek Servo by RobotGeek on Sketchfab

    Idler Horn

    The difference between a regular servo and robot servo is the Idle Horn. This horn will spin freely and is at the opposite position of the main drive horn. The idler horn will allow you to attach a C-Bracket to the servo and create a robot joint. This fundamental robot building block will allow you to easily build advanced robotic systems.

    Rail and Bracket System

    The RobotGeek Rail System makes it to mount your servo to your robot. Each servo fits in an easy-to-cut hole pattern and are molded to securely hold M2 nuts. Just use the included hardware and you're ready to go! This convenient mounting system will also allow you to attach RobotGeek Servo Side Brackets which will increase your mounting capabilities, and even let you attach servos to other servos.

    PWM control

    These servos can be controlled via a standard PWM signal, the same one used in most hobby servos. This signal is easy to understand and can easily be generated by most microcontroller systems. The Arduino environment even has a built in library for easily working with PWM servos.

    Ease of Use with the RobotGeek Sensor Shield

    The Arduino does a great job of controlling PWM Servos, making it ideal for a variety of robotic projects. But sometimes powering these servos can be problematic. Powering servos from the Arduino's 5v regulator leads to underpowered servos, limited by both voltage and current. With other sensor systems, connecting a servo to an external power supply requires multiple cables or boards, defeating the purpose of a sensor shield. The RobotGeek Sensor Shield solves this problem with 2 jumpers to control the output voltage of the 6 PWM channels on the Arduino. Just move the jumper from '5V' to 'Vin' ans your servo will start to draw power from your Arduino's input voltage supply. Just plug in a 6v power supply into your Arduino, and you'll be able to power and control 6 RobotGeek Servos with no problem!

    Compare the strength and pricing of RobotGeek Servos!

    Servo Brand Stall Torque Price
    RobotGeek RGS-13 166.6 oz·in $19.95 USD
    Hitec HS-5645MG 168 oz·in $39.99 USD
    Futaba S3071HV 145.9 oz·in $54.99 USD


    Each RobotGeek Servo comes with the following hardware:

    • 2 x Main Horn + Screws
    • 2 x Idler Horn + Screws
    • 25 x M2*4 Bolts
    • 25 x M2*8 Bolts
    • 50 x M2 Nuts