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Hack your servo v3.00 - Get full PID position and speed control from your hobby servo. Yes we like servo mods!

Hack your servo v3.00 - Get full PID position and speed control from your hobby servo

As promished this is the third servo hack. This builts upon the second hack - 'add 10-bit abolute/incremental feedback encoder to your hobby servo' - node/18470. Source code is open and links provided at the end of the post. Schematics are also provided. In terms of the board files... well dont be lazy! So lets make a start, shall we? IIC LCD Backpack. The Arduino OBD-II Adapter works as a vehicle OBD-II data bridge for Arduino with open-source Arduino library provided.

IIC LCD Backpack

Besides providing OBD-II data access, it also provides power supply (converted and regulated from OBD-II port) for Arduino and its attached devices.

Leg motion and actions

Labs / DC Motor Control Using an H-Bridge. Overview In this tutorial, you'll learn how to control a DC motor's direction using an H-bridge.

Labs / DC Motor Control Using an H-Bridge

To reverse a DC motor, you need to be able to reverse the direction of the current in the motor. Robotic Arm – Hardware. This is first in series of articles about project I've been building in my spare time since last Summer.

Robotic Arm – Hardware

Actually it all began when I was researching a topic of modeling human motion kinematics in order to create gesture recognition library for Kinect. This ties heavily into motion theory of robotic manipulators so I also glanced at some designs of robotic arms. Somehow I stumbled upon this cool looking open source robotic arm: It was featured on Thingiverse and published by user jjshortcut (Jan-Jaap). Since for some time I got hooked on toying with microcontrollers, robots and other electronics, I decided to give it a try and build it myself. Another reason to build the arm myself was the cost factor.

Laser cut parts Some time ago I’ve build another robot using laser cut parts so I knew the process already. All parts are cut from 4 mm thick material. Metal parts I bought all the M3 screws and nuts at local hardware store. Download. Uptech CDS 55XX Serial Robot Servo (Robotis AX Compatible) The Uptech CDS 55XX Serial Robot Servo (Robotis Compatible) has been launched with the aim to solve most important problems caused by R/C servos in robot and simultaneously inheriting most of the advantages of them.

Uptech CDS 55XX Serial Robot Servo (Robotis AX Compatible)

Because of the advanced position sensor and precise A/D converter gives the high position accuracy, the position resolution in position-mode can be up to 0.3°. The response time is up to 2ms contrast a 20ms of traditional R/C servo. The CDS series robot servo can be linked by serial bus, which can connect up to 200+ servos. Each unit can feedback its position, rotation velocity, torque, current, motor temperature and so on. The robot built with robot servos can set actions through artificial demonstration, that is, the user can regulate the robot’s joints posture with hands and the robot can record the parameters like location, speed, etc.

It can do rotating all round, and the velocity can be controlled, just act as a gear motor. Motor Driver - L293D - 1. Motor Driver and H-bridge basics Generally, even the simplest robot requires a motor to rotate a wheel or performs particular action.

Motor Driver - L293D - 1

Since motors require more current then the microcontroller pin can typically generate, you need some type of a switch (Transistors, MOSFET, Relay etc.,) which can accept a small current, amplify it and generate a larger current, which further drives a motor. Project Biped. High power electric motor kit. Let's Make Robots! Servos and parts>All Servos. Polargraph Drawing Machine. Well there have been lots of new drawing machines doing the rounds lately, there's a real thirst to see devices that leap out of the virtual into the physical.

Polargraph Drawing Machine

For me, it's all too easy to produce digital things which are interesting - programming or mash-ups or virtual experiments are devalued because they are intangible, you can run a hundred, a thousand, a million variations in a day - it's the proverbial roomful of monkeys with typewriters. The output becomes disposable, it get's hard to see the value, the craft. So 3D printers and other desktop manufacturing tools and technologies (laser cutters etc) have got more and more popular, it's hard to overestimate how much hunger there is for a tangible, physical, touchable, smellable product of all this clever-clever digital work.

So this isn't wholly original, check out this prior art for more inspiration: But this is the original Polargraph! Polargraph website Polargraph wiki and code Flickr stuff.


Elektronikkomponenter. Robot controllers. S3 Tilt and Pan System. Starter Pack Which Includes Everything for Controlling a Servo from a PC. If you have never used a servo before, let alone control one from a PC, then the “Servo Pack” provides an easy “plug-and-go” solution.

Starter Pack Which Includes Everything for Controlling a Servo from a PC

Once you have the Servo running under PC control the knowledge and confidence you gain by actually using a Servo is invaluable in applying those techniques to a wide range of applications. The Servo supplied is one of the most popular types on the market and understanding its principles of operation provides a solid basis for using many other types. - For those who are already familiar with servos, the servo pack offers a very convenient way of adding a servo to your PC application. - For programmers, the supplied DLL means you have a servo that is instantly controllable from within your own program (Visual Basic, C, C++ etc…) All that is required to get the servo up and running under PC control are four AA size batteries.

Robot fish synchronise into schools. Swarm-bots project. USD Modular Robotics Research Lab - modular. Projects. DPRG Events Shoptalk Support the DPRG We need your help to keep going!


Click the button to find out how you can help support our work! Website design and hosting by NCC DPRG members are constantly working on robot projects. The dates on these projects represent the date the project was initially documented. If you'd like to join one of the group projects seen here or just offer a comment on one of the indvidual projects, why not join us on the DPRG mailing list?