OpenServo is an open community-based project started by Mike Thompson with the goal of creating a low-cost digital servo for robotics. Currently maintained by Barry Carter, the OpenServo project continues to flourish with new code, new hardware, and rich documentation set.

As seen in Robot Magazine Spring edition. Leading Edge Robotics News (LERN Pg 13)


The OpenServo is a combination of hardware and software meant to replace the original PCB internal to low-cost analog RC servos such as the Futaba S3003 or HiTec HS-311. More recently, OpenServo code has found its way into non-servo applications such as the Phenostream OpenStepper.


Information can be found on this site regarding Hardware, Software and Tools & Utilities to create your own OpenServo.

Places To Go


You can now purchase an OpenServo from the authorised distributor RobotFuzz Robotics

Phenostream now offer a stepper motor product based on OpenServo. More information can be found about this product on Phenostream information page. For more info visit www.phenostream.com


Continued OpenServo development is possible because of the help and support of a number of individuals:

Barry Carter is the heart and soul of the OpenServo community and without his efforts the project would have surely have withered and faded. Barry (ginge) is an enthusiastic and active member of the OpenServo forums and he is working to continue the great work Mike Thompson started with the OpenServo project. Barry's personal efforts with the OpenServo and robotics can be tracked at his HeadFUZZ website.

Cliff Huston of Propeller Head Design has not only provided the community with his hardware design experience, but also become a prominent member of the community. Cliff has recently designed the OSvX2 (the OpenServo Version 3) with an array of amazing features and inspired PCB layout. Much of the complex hardware related issues would not have been possible if it were not for Cliff's intimate electronics knowledge.

Andy Lippitt was the earliest supporter of the OpenServo and helped inspire and create the OpenServo community. He has generously generously donated both server space and know-how to make the OpenServo website possible. Andy's efforts with the OpenServo in his hexapod robots can be seen here.

Jay Ragsdale of Pendragon Robotics has taken up the challenge of manufacturing and distributing OpenServo PCBs at a very reasonable cost. Jay's efforts make it possible for those without the time, patience or desire to create their own PCBs with extremely small surface-mount components to participate in the OpenServo community.

Colin MacKenzie provided the original inspiration for the development of the OpenServo. Colin developed a similar servo board called the SuperServo for his Symapod robot using the PIC16C73A and was kind enough to share his design. Aspects of Colin's hardware design were borrowed for the OpenServo.


The best way to contact the developers of the OpenServo is to leave a message in the OpenServo Forums within the appropriate section. The forum is actively monitored and your questions will be answered in a manner that benefits everyone in the OpenServo community.

If you prefer, you may contact the lead developer, Barry Carter, at the following email address:


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