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
Flash Camera into a Self-Repeating Strobe
The first step is to remove the film. Be sure the film is fully wound in. Then use a flat blade screwdriver to pry up the tab at the seam in the middle of the right side of the camera. The right side of the rear panel of the camera should then pop up. You can swing this part open to get the film. This is ordinary enough Kodak MAX 35 mm. color...
Building a Better Cam Trap
The improved system is called RC-CAM2. It works better AND it costs less than my earlier attempt to get a wireless video system on my flying model. The only caveat is that there is some assembly (or disassembly as you will soon find out) required.
RC CONTROLLED DIGITAL CAMERA
The aim of this project was to get a digital camera into a small electric radio controlled (RC) aeroplane and still have it fly. The aeroplane shown, a park flyer, weighs between 400 and 550 grams depending on the size of battery and wing configeration that I use.
Digital Camera Controller
If you are not using the Aiptek camera then it will be up to YOU to determine how to hack your particular digital camera. The camera that was used in the project is the tiny Aiptek Mini PenCam 1.3. However, other cameras are possible candidates too since the schematics include notes for a universal shutter interface.
Motorized Camera rotator
The camera rotator circuit uses a 2716 EPROM to store a table of logic values that control the motor driver (H-bridge) circuit. The EPROM data is shown in the schematic. By using the EPROM, a large number of discrete gates are eliminated. The logic table is designed to allow the motor to turn clockwise until the clockwise limit sensor is...
Photo film processor circuit
This machine essentially does three things: It controls the process temperature, provides constant agitation of the chemical baths, and performs the timing. The operator must pour in and out the liquids by hand. The heart of the circuit is a Basic Stamp 2p microcontroller. It has a program loaded that contains several film processing algorithms....
disposable camera strobe light
If you have no idea what is a "strobo", "strobe", "stroboscopy" or whatever way it is called, it is simply a flashing light. It is usually used on police cars, 'disco' places and many interesting applications, including scientific ones. This project is dangerous because it implicates high voltages, it can be lethal. Please read the Disclaimer...
Video Camera switcher MAX454
The video switcher described here can display the output of two, three, or four cameras on a single monitor. The number of cameras is set by a DIP switch on the circuit board. That feature avoids blank displays if less than four cameras are used by sequencing through only the inputs that are connected to a camera. In the automatic mode, the...
Rise Nikon Camera Remote Control
This is an IR remote control for Nikon cameras. It is compatible with the Nikon ML-L3 remote control. Supported cameras include: D40, D40X, D50, D60, D70, D70s, D80, Coolpix 8400 8800. This design is based on an idea from The circuit is extremely simple: an ATtiny13V, button, transistor, resistor, IR diode and 3V battery. You could even omit the
Proximity Camera Head (A2047) Manual
The Proximity Camera Head (A2047) is a Long-Wire Data Acquisition ( LWDAQ ) Device that reads out a TC255P image sensor. It is a radiation-tolerant descendent of the Inplane Sensor Head ( A2036 ). We use the A2036 and A2033 most often with the LWDAQ Software`s Rasnik Instrument Figure: The Proximity Camera Head (A2047A). Marked are (1) the eight-w
Camera Head (A2075) Manual
The Camera Head (A2075) is a LWDAQ Device that controls and reads out a single ICX424 image sensor. The circuit provides a socket into which we can solder the sixteen-pin sensor directly. It provides a twelve-way flex socket to which an auxiliary board holding the sensor can be connected. Connect only one sensor at a time. Figure: Camera Head (A20
5V Power Supply For On Train Radio Camera
A radio camera on a model railway should transmit constantly while the train is moving and continue transmitting for a few minutes after the train stops. But if the train starts up again after a relatively long halt, imagery should be transmitted immediately. Consequently, the power source for the camera cannot be rechargeable batteries (since the
Camera flash circuit
Simple few transistors generator and transformer A transforms 1. 5V battery voltage to few hundred of volts. This is quite high voltage. Then this high-voltage current passes through a diode, which rectifies current to DC. This DC current is stored in quite big capacitor. The capacitor is connected to the two electrodes on the flash tube at all tim
Nokia 2630 Camera Operation Failed Picture Help
Camera operation failed on Nokia 2630 has similar solution with the Nokia 2600c because they have the same board. The problem usually caused by the hardware damaged or broken line on the circuit. Here we have some pictures related to Nokia 2630 camera operation failed problem.
Nokia 6500 Camera Problem Picture Help
Nokia 6500 camera problem like camera operation failed or camera blank, can be solved by doing a little trick. The pictures below relating to Nokia 6500 slide camera problem, try to make a jumper like shown by the picture. The picture also show you the IC that related to camera circuit, replace that IC or try to reheat might be can solve your pro
Lightning Activated Camera Shutter Trigger
Lightning Activated Camera Shutter Trigger. This picture was taken using the circuit. This circuit is used to trigger a camera`s electronic shutter circuit when a flash of.
IR illuminator for night-vision tv cameras and scopes
IR illuminator for night-vision tv cameras and scopes. This source uses LEDs and an astable oscillator to control the switch, duty-cycle, and effective IR illumination output
Homebrew tapeless camera
This is an ongoing project I`m working on which started as a circuit that I decided was necessary to be able to neatly interface the nNovia QC120 A2D2recorder to a Sony DXC-325P camera with CA-325P studio back. I`m still working on the final design. I have built the PIC 16f872 based circuit that controlls the nNovia via the GPI control lines and t
Trigger Circuit Controls Stop-Motion Camera System
This version of the trigger circuit for the stop-motion camera system uses an electret microphone for a sonic input, but the designer can substitute an LED and photodiode pair to create an optical trigger. For a recent home-brew project, I built a stop-motion camera system using a timed flash and shutter system. The system required a trigge
Camera VHF Video Transmitter
This is a simple video transmitter that can transmit as far as 50 meters. This video transmitter can be used with the camera or other video sources. You can view them on VHF channel analog TV. Supply voltage to the video transmitter can use 9V battery. Transistor components that are used for a video transmitter is BC548 or you can use another...
home-made light-operated camera trigger
This device is used to photograph moving objects by triggering a camera or flashgun when one or two light beams are interrupted. It was designed to capture insects in flight, but can also be used for projectiles and anything else that moves too fast or irregularly to be photographed by hand. It cost around $30 to build, and was used to make The Ba
The Camera1 module provides a RoboBricks2 bus interface for a General-Vision Cognisight MTVS vision system. This module a builtin camera and electronics for recoginizing features in an image. The recognition hardware is based on neural network technology. At first, the module is trained on a bunch of image classes. After training, the module can r
Lx1995 Led Driver: Camera Flash Application
The M-88L70 is a full DTMF Receiver that integrates both bandsplit Filter and decoder functions into a single 18-pin DIP or SOIC package. Manufactured using CMOS process technology, the M-88L70 offers low power consumption (18 mW max), precise data handling and 3V operation. Its Filter section uses switched capaci- tor technology for both the high
Motion Activated Camera
A relatively simple attachment to my Canon SLR to create a motion activated camera using Arduino. A lot of this was based on and inspired by the intervalometer project at The Honey Jar. I made some changes to his circuit to use a 4N35 optocoupler instead of reed relays. Here is what you will need: The motion detector is really sensitive so I cut...
Mini efficient coil launcher from disposable camera flashs
This is a fun and non-dangeros project for those people who like to throw projectiles magnetically. It simply works by placing a ferromagnetic projectile at one end of a coil and pulsing some power in it. The trick is to switch off power when the projectile is at the middle of the coil, there are some ways to do it but it isn`t important now.
Batteries charger & PSU - ideal for digital camerass
This circuit was created for digital cameras. It`s known the digital cameras have considerable power consumption. For example my camera Minolta E223 requires approximately 800 mA. In practice a mains power supply or high capacity NiMH accumulators (batteries) can satisfy this demand. This circuit consists of two parts, charger and adapter. The tra
Simple sound trigger for cameras and flashes
This acticle describes how to build a simple yet effective sound trigger for cameras or flashes. The circuit allows to experiment with high-speed photography..
IR Interval Timer for Pentax DSLR Camera
This project aims to build an IR interval timer which can be used to capture images such as time lapse movies of sunrise or sunrise and the night sky. The..
5V Power Supply For On-Train Radio Camera
A radio camera on a model railway should transmit constantly while the train is moving and continue transmitting for a few minutes after the train stops
Beam-break Detector For Camera Shutter or Flash Control
This circuit is presented as an alternative to the IR beam break detector featured in the June 2009 issue (Silicon Chip). In order to make it relatively i..
This circuit can be used for multiple cameras with one monitor. The circuit can be operated manually or automatically. When operated automatically the swi..
How to install CCD camera sensor with VHF sender
The CCD camera sensor is device that have very useful. This project has small size. But quality is a lot good. We can install with Television easily through the video in terminals. and connects to the video signal modulated to To send a broadcast RF signal is explicit is better. This project can be adapted to many applications such as installed in
Video Mixer Circuits
Video Wall Circuits
TV Video Circuits
Video Modulator Circuits
Photo Flash Circuits
Video Amplifier 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