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
Interconnection & Timing
Digital Signal Integrity
Digital & Bipolars
Sensors & Detectors
Regulated Power Supply
4 Band Resistor
5 Band resistor
6 Band resistor
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...
555 timer based light seeking robot
The schematic diagram of this robot is very simple to understand. As I had mentioned earlier I just modified a circuit from on of the books to create..
Edge Avoider Robot without microcontroller
Edge Avoider Robot (EAR) is a mobile device, which senses and avoids the absence of surface below it..
Until Willow Garage was acquired, I was working there as a Web Robotics Engineer. Really, it`s just a title I gave myself for a full-stack engineer who deals with the issues of real-time, distributed robot control. I`m on GitHub, of course. My most popular projects have been an XML-RPC server and client for Node. js, a (now deprecated) Robot Opera
74HC240 produces and seeks all robot
This text give reader it introduces another that Is produces to be central to seek the smooth robot as top management by 74HC240, still carry out low technology, low-cost making idea, enjoy together with everybody. The threshold voltage of the Schmitt trigger has determined the set value of the system, the characteristic of the Schmitt trigger has
ultrasonic sensor interfacing with 8051
If you want to make your robot sense the objects in it`s surroundings i suggest you to go for an ULTRASONIC sensor. Though the IR based sensors are cheep, their working range may vary due change in ambient light and won`t give accurate range values. In case of ULTRASONIC sensors they work based on the principle of RADAR(RAdio Detection And...
How to make a solar powered robot
One 1381 part (CMOS voltage-controlled trigger available at different limits) Get one that matches the voltage across your motor (2V in this case) 8. The other terminal of the motor is connected to the 3300uf capacitor which is in turn connected to the other terminal of the solar panels. (The diagram shows 4700uf. Don`t worry. As you will see...
Robot shield for Arduino
The idea behind this post is to bring together some robot designs and trasform them in a new device with new hardware and standard software (arduino of course) and so easier to use. These robots have three things in common: a mechanical structure, the hardware and the software. While the mechanical part is necessarily different, we wanted to under
The Wooden Menace Circuit
The hardware schematic for the wooden menace (robotic arm) is fairly straight forward. The PIC microcontroller has one control line feeding to each servo and it also connects to the RJ45 connecter. The RJ45 connector is used for getting input from the controller. The power circuit is just a 9v Battery hooked up to the LM7805 with a 1uF capacitor
Simple Robot That Drives Forward and Back
The Flip-Flop Robot drives forward until it hits an obstacle, and then reverses until it hits another obstacle. This back-and-forth process continues indefinitely. By limiting the functionality to this very rudimentary behavior, it can be generated from an off-the-shelf chip instead of requiring a fancy microcontroller. Thus, this is a good robot
PWM - Pulse Width Modulation for DC Motor Speed and LED Brightness 1
PWM - Pulse Width Modulation for DC Motor Speed and LED Brightness 2
To understand how the 74AC14 PWM circuit works, let`s zoom in on the section of the schematic containing the trimpot, diodes, capacitor, and the first inverter logic gate. The capacitor is empty (discharged) when the power is first applied to the circuit. Because the capacitor is low, and because the capacitor is connected to the input pin of the
Solar Top Robot
two servo walking robot using TI launchpad
Hi, I bought two small servo motors last month. I was thinking what I can do with this two servo, since it is only two in number. Then I asked this to my friend Achu Wilson and he suggested me to try a four legged two servo walker and he shown a youtube video in which some one demonstrating it. Then I also got interested to make some thing similar
Animatronic Robot Head
The head will be powered by servomotors and will be built from sheet plastic, metal or plywood. The template which can be used for cutting sheet material can be found at the end of this article. Download the template, compare the size of the printed servomotor with your servomotors at hand. Do the necessary resizing operations by photocopying the
servo motor and dc motor control
to verify schematics for 2 motor robot
Constructing a robot or should i say a vehicle dat uses 2 motors. I managed to get sum referance regarding d schematics for the circuit design but the current schematics uses a smaller motor. which draws less power and uses a much less power supply. the schematics is in the link below. i need to use a much powerful motor and provide more power...
LINE TRACER ROBOT WITHOUT MICROCONTROLLER
Now Look carefully following circuit Diagram & try out the circuit on bread board first. if it is working properly go to making its PCB version. the P..
40 Pin PIC Development Board
If you need lots of Analog to Digital channels, or plenty of program space (up to 32K!), this one is for you! Prototype board for 40 pin PIC microcontrollers with power supply circuit, 20MHz crystal oscillator circuit, RS232 port, ICSP/ICD programming port.
Assembling The Speed Controller
The. 01uf monolithic capacitors will be marked `103 K` and the 15pf monolithic capacitors are marked `15 J`. It is very important that you don`t confuse the two. DO NOT take either the MOSFETs or the Integrated circuits off their protective static containers until just before you use them. Ideally, you should also keep yourself grounded whenever
Using Motor Bridges
Bridges allow your robot to control high current motors. They literally "bridge" between the low-current logic circuitry of your robot`s brain to the high current demanded from the motors. Many, but not all, use the common "H" arrangement of control circuitry (usually power transistors) to provide on/off and directional controls to the motors - h
Laser Pointer Remote Control Circuit
The laser-pointer detection circuitry is able to determine when a laser light is aimed at a particular photosensor. If the laser is aimed at the top sensor, the comparator chip outputs on . If the laser is aimed at the bottom sensor, the comparator chip outputs off . The circuit could be considered complete if you wanted somethi
Light Follower Robot using Arduino
The figures above shows the basic idea of any robot, where we have some inputs and output devices connected to the brain and some outputs controlled by the brain. In our case we will have the Arduino like the brain. The central Brain, controls all movements of the Robot. The sensors will do the monitoring where the light focus is and finally the m
Robot Trains in the Garden motor control circuit
I have only been actively involved with garden railroading for a little over one year but have found it to be a wonderful way to use the skills and interests that I have developed over the years in other hobbies. For example, I used my love of woodworking to help me design and construct two scratch built bridges and nearly 100 trestle bents to sup
Line Follower Robot
Designing a simple and yet functional Line Follower Robot (LFR) is always a fascinating and challenging subject to be learned, the LFR actually could be implemented in many ways start from a simple two transistors to a sophisticated PID (Proportional, Integrate and Differential) which take advantage of the programmable feature of microcontroller t
search and rescue robot
This page has links to various projects and items of interest for the RoboticsArt Studio class projects..
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
Radio Control a two wheel robot from your PC
Well, it took some time and a few failed attempt, but here it is. A neat project that lets you control two wheels or tracks from your PC serial port with no wires attached. I have it working at 2400 baud and that is about as fast as I can think. We assume you have a PC, so what else do you need First a Basic Stamp. I am using the Stamp I, but a B
Cellphone Operated Robot using ATmega16 AVR microcontroller
This Instructible is entered in the Category: 13 - 18 of the National Robotics Week Robot Contest.
analog line follower robot
Perhaps we often see robots line follower robot which is going to follow the line on the track. in general line follower robot is controlled by a microcontroller, but in this article online follower robots in the design without using the microcontroller. For that you should try to assemble his Line Follower Robot series consists of three main part
Line Follower Robotic With Quad Op-Amp LM324
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...
Digital Signal Integrity
Interconnection and Timing of Digital Circuits
CMOS Circuits Tutorial