Hobby projects - Simple electronic circuits Computer microphones Learn how to interface electret and dynamic microphones to the standard computer sound card. Metal detectors Theory of operation and schematics of the most common metal detectors used today: Very Low Frequency (VLF), Pulse Induction (PI) and Beat-Frequency Oscillator (BFO). Wireless microphone The wireless microphone transmitter can be built in an afternoon with simple, affordable and widely available parts.
Circuit Simulator Applet This is an electronic circuit simulator. When the applet starts up you will see an animated schematic of a simple LRC circuit. The green color indicates positive voltage. The Transistor Lists of Nobel Prizes and Laureates The Transistor Play the Transistor Recycler Game About the game A transistor is made of a solid piece of a semiconductor material and either used as switches, to turn electronic signals on or off – or, as amplifiers.
Soldering Instructions « These are Version 2 soldering instructions for our new green circuit boards. If you have a blue circuit board, please use the instructions located here. In order to assemble the Ultimate Useless Kit you will need a soldering iron, wire-cutter/strippers and a heatgun or lighter/matches for the heatshrink. Our kit is very easy to solder together, it only has 11 electronic parts: Battery Pack Gear Motor Toggle Switch Microswitch Printed Circuit Board Green & Red 3 mm LEDs Two 56 Ohm Resistors Hook-Up Wire Heat Shrink
AVR projects and AVR Butterfly gcc port by Martin THOMAS G.d.W. SS2010 FHFFM You may like to visit my ARM-Projects page too (projects and information for NXP LPC2000, Atmel AT91SAM7, STmicro STR7, STM32, LMI LM3S and other controllers with an ARM-core). Last update in the ARM-section: 25. Jones on Stepping Motor Types - Мозилин фајерфокс (Mozilla Firefox) Introduction Stepping motors come in two varieties, permanent magnet and variable reluctance (there are also hybrid motors, which are indistinguishable from permanent magnet motors from the controller's point of view). Lacking a label on the motor, you can generally tell the two apart by feel when no power is applied.
Electrcity: History & Science © Matthew Modoono Indoor bolts produced by the world's largest air-insulated Van de Graaff generator spark exciting explorations of lightning, conductors, insulators, electricity, magnetism, and storm safety. Seating is first come, first served. Now Showing servo101 Servos have a 3 pin connector, consisting of ground, supply voltage, and control signal. Pinouts have been known to vary by manufacturer. Servos are controlled by sending it a variable width pulse (a type of Pulse Width Modulation (PWM)). Important paramiters about the shape of the pulse are the 'centre duration' and repetition rate. A servo often turns less than 180 degrees on the output shaft over the rated minimum and maximum output pulse lengths.
Build the BASIC SPY TRANSMITTER - Page 1 of 16 Build the 2 transistor Spy Transmitter Radio frequency projects can seem more difficult than most electronics projects because most of the time you cannot build them on a solderless breadboard and there may be parts used that are not easy to source such as coils and adjustable capacitors. This project is focused towards those who have not yet attempted to build any kind of RF project, and it is laid out in such a way as to make it easy to explore the basic principles of RF circuitry and ensure a successful final product. This simple 2 transistor audio transmitter will send the sounds picked up in a room to any FM radio tuned to the same frequency as the transmitter, somewhere between 80 and 100 Megahertz.
Soldermans Basic Electronics: Binary and Hex - Мозилин фајерфокс (Mozilla Firefox) Computers understand numbers and logic, as most are digital computers. The Binary Hexadecimal System is the way the numbers or logical commands are instructed to the computer. All input devices or sensors must finally talk this language to the CPU, and all outputs and actuators must be able to understand this numbers to do their job. A bimetallic thermostat is like a simple mechanical computer. Where the bimetal response is the sensor input, the contacts are the output to actuator and the bimetal thermal behavior is of the nature of intelligence. Operational amplifier applications This article illustrates some typical applications of operational amplifiers. A simplified schematic notation is used, and the reader is reminded that many details such as device selection and power supply connections are not shown. Operational amplifiers are optimised for use with negative feedback, and this article discusses only negative-feedback applications.