Vacuum Tubes Valves
Musical & effects
Yagi Uda Antennas
Metal Detector Circuits
Liquid Sensing Circuits
Light Sensing Circuits
Voltage Detector Circuits
Air-Gas Detection Circuits
Human Sensing Circuits
RF & Radiation
Optical Sensing Circuits
Free Energy Circuits
AC to DC & DC to DC
Solar Cell Circuits
Micro Power Circuits
Switching Power Supplies
Light Laser LED
Digital to Analog
Analog to Digital
Data Bus Circuits
Voltage to Pulse
Current to Voltage
Frequency to Voltage
RF Converter Circuits
Sine to Square Wave
Voltage to Current
voltage to frequency
Period to Voltage
Video Wall circuits
TV Video Circuits
Motor Control Circuits
8051 / 8052
PCB CAD Software
Car bike Circuits
555 Timer Circuits
Remote Control Toy
H Bridge Circuit
DIY HV Variable Cap
DIY PMA alternator
Interconnection & Timing
Digital Signal Integrity
Digital & Bipolars
Sensors & Detectors
Regulated Power Supply
4 Band Resistor
5 Band resistor
6 Band resistor
Robot Voice Generator IC HT8950
This project shows you how to build a robot voice generator with IC HT8950, a powerful voice modulating IC. The circuit has Robot function, Vibrato function and..
Bidirectional motor control (driver) circuit for Robotics beginners
How can we rotate a DC motor in clockwise and anti clockwise directions Or how can we rotate a motor in forward and reverse direction These are the popular question asked by many of the robotic beginners. DC Motor (control) driver circuits are the essential circuit of robotics workshop. L293D IC is widely used for implementing DC motor control c
Remote Operated Spy Robot Circuit
Here is a remote operated spy robot circuit which can be controlled by using a wireless remote controller. It can capture audio and video information`s from the surroundings and can be sent to a remote station through RF signals. The maximum range is 125 meters. It overcomes the limited range of infrared remote controllers. This robot consists of
RS485 Library for Windows and Atmel AVR 8-Bit
This project implements a half-duplex, master/slave communications protocol based on RS-485 bus hardware. A Windows PC plays the role of bus-master and several Atmel 8-bit AVRs assume the role of bus-slaves. The Windows part is written in C+, the ninth data bit is simulated by the parity bit, the transceiver direction is switched by the RTS line.
i want help with my project accelerometer controlled robotic arm
Good Preparation. I like this. There is one suggestion you can use RFM70 or RFM22 for RF communication..
The Enactive Torch
A dual-RCX, six motor dog. Slashdot Review. Cindy Salwen pointed out a description of the protocol for the serial interface between the computer and the Dacta Control lab. This may or may not be related to the protocol used by the RCX, but if you`re reading this page, it`s probably interesting information anyway. She also contributes another...
This page has links to various projects and items of interest for the RoboticsArt Studio class projects..
2d Contact Robotics
There were issues connecting to the while in Ubuntu 11. 04, where the COM port assigned to the Arduino was not accessible through MATLAB. This issue will be investigated later if needed. MATLAB Arduino Library: The MATLAB support package for Arduino was used for this project. A few changes, outlined in the README, were put in place to...
Mc68hc908ey16 Controlled Robot Using The Lin Bus
System Oscillator Crystal/Ceramic Oscillator. The following circuit combination of resistors, capacitors and inductors depicts an equivalent cir- cuit for a crystal or ceramic Oscillator
Dr. Iguanas Vivarium
A good thing too since I initially hooked the p-channel mosfets up backwards. No smoke fortunately. I`m using Pololu gear headmotors (although continuous rotation servos will also be supported). In order to drive the motors in either direction I`m using H-bridges. This circuit gets it`s name from its distinctive shape. It consists of four...
The robot consists of modules controlled by a main controller. The main microcontroller is an 18-pin, 8-bit, PIC16F84 Flash microcontroller operating at 4MHz. The microcontroller is programmed in assembly language. The controller is connected via I/O pins to the communication module, drive module, scoreboard and the stepper motor driver circuit. T
Stepper Motor Controller
Stepper motors are useful for relatively low-speed, intermediate-torque drive and positioning applications, particularly where accurate sub-revolution rotor position control is necessary. Motors of this type are commonly used to drive the reels on electromechanical slot machines (one-armed bandits), to position floppy disk drive heads, operate...
RS 422 Compatible Indicator
design of the circuit and coding for the project`s stepper motor controller, the development of the circuit and coding for the speed-controlled DC motor for the project`s propulsion system, the circuit and coding for the system`s navigation system using a MEMS accelerometer circuit. This circuit is a bit of a departure from the rest of the...
This simple robot, which responds to light and avoids obstacles, can be built without using a microcontroller, programmer or PC. The only special` component in the circuit is a window discriminator (a fancy version of a window comparator). Resistors R1 and R2 in combination with light-dependent resistors LDR1 and LDR2 form a voltage divider (with
Line Following Robot Sensor
This Line Following Robot sensor or surface scanner for robots is a very simple, stamp-sized, short range (5-10mm) Infrared proximity detector wired aroun..
Line Following Robot
How to Mod the Servomotors (look at the pictures) Remove the four screws from the servo and take it all apart. Remove the electronics keeping only the wires from th..
please review my solar racing robot circuit
Controlling DC Motors Robotics Tutorial
The principles of DC motors are covered in the beginner and intermediate sections of this tutorial. This section will cover the electronics needed to interface them to a Basic X microcontoller or other digital chip. The easiest way of controlling motors is using the Robocore. This board contains the driver electronics to control up to 4 DC motors
Line Following Robot Sensor
This Line Following Robot sensor or surface scanner for robots is a very simple, stamp-sized, short range (5-10mm) Infrared proximity detector wired around..
This is vWalker v1. The "v" standing for V, as in five. It is a five motor walker that goes towards light and avoids obstacles. The goal was to create a walker that could navigate over rough complex terrain while seeking out the brightest source of light. The base controller for the walker is four master/slave linked bicores. All of the other circ
RF Modem Robotics Project
90S2313 AVR Robot Board
The Atmel AVR series are very good microcontrollers with quite a rich instruction set, rich enough that lots of folks have good compilers for them so we don`t have to learn their assembler. A very rich compiler available is the BASCOM/AVR compiler from MCS Electronics. I`ve used this compiler for prototyping the software on my 90S2313 robot board
RC Controlled Forklift robot
The Automatic Forklift System (AFS) is designed to make the process of stocking warehouses safer and more efficient. With current manually operated forklifts, employees are at risk of injury. The Automatic Forklift System (AFS) is designed to make the process of stocking warehouses safer and more efficient..
Line follower robot
For my final project, I decided to make a line-follower robot. This micro controller line follower robot is designed to be able to follow a black line on the ground..
Cellphone Operated Land Rover (Mobile Phone Controlled Robot)
CELLPHONE OPERATED LAND ROVER (MOBILE PHONE OPERATED ROBOT). In this project, the robot is controlled by a mobile phone that makes a call to the mobile phone attached to the robot..
Obstacle Avoidance & Navigation for Industrial Robots
A project on Obstacle Avoidance & Navigation of Path Tracing Manipulator for Industrial Robots. A robot is an automatically guided machine, able to do task on its own. Another common characteristic is that by its appearance or movements, a robot often conveys a sense that it has intent or agency of its own
Trigger circuits for stroboscopes
This page contains some information on circuits which can be used for triggering stroboscopes from external circuits. The circuit here are designed to be integrate to strboscope circuits so that they can triggered using external trigger pulse. The standard trigger pulse used in professional stroboscope controllers is 3-10V pulse. If you don`t alre
First humanoid robot built in the USA the ATOM-7xp
Stepper Motor Circuits
Remote Control Circuits
Direction Finder Circuits
Power Control Circuits
Motor Control Circuits
Ultrasonic distance finder circuit
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is measured. There are three main categories of distance measurement methods in use: a) By...
Simple Metal detector circuit with CD4030
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to find something potentially valuable, hidden a few centimeters below the soil. So many...
Fully automatic watering circuit for flower pots
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This circuit comes as a solution to this problem. Depending on humidity of the pot at...
Simple deep searching metal detector circuit
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the circuit of this metal detector, it is possible to detect a metal coin in depth of 90 to...
Sub-Harmonic Bass Converter for Electric Guitars
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound, such as filtering or distortion. Instead, a frequency division system produces outputs...
Echo Depth Sounding Sonar for Boats
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the calibration of the rope. This arrangement still exists in some yachts. The big...
100W HiFi Audio Amplifier Circuit
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power supply must be symmetrical so that no electrolytic capacitors are needed at the outlet....
Plant-Pot Water Level Indicator Circuit
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower. The circuit of the device is shown in Figure 2. The water detection is made from the bottom...
Analogue Sound Preasure dB-Meter Circuit
The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to have a good accuracy we will get the limits of 20Hz to 20KHz. A sound to be heard does...
DIY HV Variable Capacitor
DIY PMA Alternator Plans
Digital Signal Integrity