This project over oomlout.co.uk shows how to build a robot able to cut resistors… If you are in need to cut a lot of resistors this will be handy. It uses an Arduino, a stepper motor, two RC servos, two exacto blades and a bundle of laser sliced 3mm MDF. It is able to produce resistors strips of any length. [via]
Resistor cutting robot – [Link]
This is a simple servo tester which will comprehensively test the capabilities of almost any modern servo. It has two pushbuttons, CENTRE and SWEEP and a potentiometer which works as follows:
Simple Servo Tester - [Link]
This is a nice example of scavenging parts from an inkjet printer to make cool stuff. It uses an Arduino and a Motor Shield to control the DC motor. The web site has a lot more information and the source code to get you started. [via]
Using a DC motor as a servo with PID control – [Link]
Servo motor is very useful in robotic. I used servo motors to create few robots in the past. But I never think of using servo motor as input device, and mahto did it. Making servo motor as input device, you can now record the position of the servo motor and play it back the sequence of actions afterward. [via]
Servo Motor as Input Device - [Link]
This servo tester can control two servos independently. It can analyse the servo signal quality from your receiver. It measures voltage and current under servo load. It can be used as a tachometer, and with a later software upgrade it can also be remote controlled from a PC.It uses a rotary encoder for fast and intuitive navigation of the menus, which make it even more simple to use than the old 4-button tester.
Servo tester - [Link]
This serial servo control software was written in “Visual Basic 5 Pro”. It uses the PC serial port “com1″ to talk to a Basic Stamp, or a Pic Micro programmed with MicroEngineerings PicBasic.In between positions are available as well.You can just click on the slider and hold the mouse button down while moving the slider for large adjustments, or use the up/down arrows for slower more precise positioning.
Serial servo control - [Link]
This project was developed as an inexpensive way to drive small dc brushed motors as positioning servos for use on a desktop sized CNC machine. The board is interfaced to the PC through 2 pins of a parallel port. The drive signal on these pins is known as quadrature drive. The power stage consists of a power op amp driven in constant current mode. The internal PIC processor ( a 30f4012 from Microchip ) is programmed in C through the C30 compiler and the Microchip IDE. The servo loop parameters are programmed through a serial port connection and are saved in the dspic eeprom. Once set for a particular drive, they should not need to be changed. [via]
Dspic-Servo Project - [Link]
In this lab, you’ll control a servomotor’s position using the value returned from an analog sensor. Servos are the easiest way to start making motion with a microcontroller. Even though they don’t turn 360 degrees, you can use them to create all sorts of periodic or reciprocating motions. Check out some of the Flying Pig mechanisms for ideas on how to make levers, cams, and other simple machines for making motion. [via]
Controling a servomotor - [Link]
The hardware setup is very simple, and is described in detail in the serial-servo article. The JR Sport ST47 standard servo is wired directly to Arduino’s 5V power and ground, and the servo’s control wire is connected to Digital pin #2. The Arduino module is connected to a PC (running Linux in our case) with a USB cable, and a standard USB joystick is also connected. [via]
Joystick Control of a Servo - [Link]
This could be a great starting point for a motion control system or a DIY simulator. The movement of the servos is very smooth, and they can all be controlled simultaneously and independently. The website has all the code needed for the build and a nice video of it in action.
This tutorial will describe how to use Arduino to control a bank of four independent RC servos with your PC (or Mac, or *nix Box), using a USB cable and a modular Arduino-Python software stack. [via]
Arduino-Python 4-Axis Servo Control - [Link]