Saturday, April 16, 2011

Mini Servo Controller

In this project we introduce easy to build, miniature servo controller. This miniature servo controller system is ideal for most of the robotic and mechanical projects. Some of the most notable key features of this project are:

  • Tiny PCB design (35mm × 33mm aprox.) using standard through-hole components.
  • Support for both analog and digital control interfaces.
  • Compatible with most of the servo units.
  • Low cost due to small amount of components.

The main controller of this project is PIC12F675 – 8bit CMOS microcontroller. In this given design we configure PIC12F675 microcontroller to operate using its 4MHz internal oscillator.

This designed servo controller may successfully work with any generic servos which include MYSTERY, Futaba, HiTec, JR Radio, etc. At the prototyping stages we test this controller with several MYSTERY 3.7g and 9g servos.

This servo controller is design to work in 2 operating modes. In first mode this system may work with analog potentiometer and control the servo according to the value of potentiometer. In the second mode servo is controlled using 3 tactile push switches. These operating modes are selected using jumper on the controller PCB. This servo controller is design to work with 4.5V – 5.5V DC power source.

All the project schematic files, PCB designs and firmware source codes are available to download at google drive.

Friday, April 8, 2011

Open Hardware Logo Selected!

Open Hardware community selected “Golden Orb” by Macklin Chaffee as the OSHW Logo v1.0. Congratulations Golden Orb!

You can also get open hardware definition from this link: Visit Open Hardware Summit – home page to get more information and updates about “Open Hardware”.