This is a robotic arm paired with a stepper motor to move it back and forth. It grabs up a sharpie pen and receives automated commands to dot out pictures.
The Sharpie Dotifier uses 5 servo actuators to move the arm up, down and to grip objects. The robotic arm is on a wooden stage which is moved back and forth via a threaded rod. The stepper motor turns the threaded rod so that the stage moves back and forth. Because the motor moves in precise steps we can reliably track the movement back and forth and always know where the stage is.
The Sharpie Dotifier - [Link]
This project is a PCB etching solution rocker that uses a servo motor to agitate the etching solution. The base is build from wood and the servo is controlled by a PIC 18F2620.
PCB Etching Solution Rocker – [Link]
This project is a meter clock that is styled like a VU meter. The two meters are attached to servo motors and are controlled by a PIC 18F2550. The box is build by y first making a form, then laminating thin sheets of wood. Complete project documentation can be found on the link below. [via]
Meter clock in wooden box – [Link]
This project uses a cellphone interfaced via an MT8870 DTMF decoder and an Atmega16 to operate servos controlling a robotic car. Check circuit and construction details on the link below. [via]
Cellphone controlled Robot - [Link]
This project adds pan and tilt features to a webcam. It has IR control and uses a common television remote to instruct a servo motor. The device is based on Picaxe 08M microcontroller. Check details and schematic on the link below.
Cammy v.1.0 Living Room Webcam Tracking – [Link]
This project is an analog PWM servo control. It details the design of an op-amp based, analog oscillator that can produce hobby servo control signals based on any analog input (be it a potentiometer, DAQ card, or something else). Check details on the link below.
Pure Analog Servo Control - [Link]
This project shows how to build a simple RC servo tester that features digital accuracy. It is easy to build and allows you to test and setup the servos.
R/C Servo Tester - [Link]
CHEX is a perfect device for testing CCPM servo setup. This device allows you to connect 1-3 servos simultaneously. It can be used as a servo signal generator for testing electronic speed controller (ESC) without using a transmitter and receiver. Also, this device can be used to check other RC devices as shown in the features below.
E-CHEX : Multi-purpose RC devices checker - [Link]
This project is a servo tester based on PIC16F690 and with code written in C. The timing loop is a crude one relying on a simple tight loop, so the pulses are not massively accurate.The board has four modes of operation, selected using TACT switches with the status indicated on LEDS built into the switches .
Servo Tester Module - [Link]