This dimmer it can’t be used for light dimming and it can control those power saving fluo-bulbs which have internal electronics/converters. The controlling element is solid state relay  (SSR) which consists of opto-triac MOC3043 (MOC3042) and a triac (ie.: BTA16, BTA08, …). This combination enables us to turn ON/OFF all kinds of appliances (motors, lights, [...]

This project is useful for repairing broken PC monitors. The monitor tester uses ATTiny2313 AVR MCU running at 20MHz speed. Power supply is made using one xx2950 device chosen because its low quiscent current, important factor for battery powered devices. You can use an 78L05 equivalent integrated circuit if you are not interested in consumption [...]

This example will show you how to build a PIC based simple memorization game system. With only a PIC16F84A and a few cheap components, you will train your brain first to understand a few basics about PICs, second to play to a not that easy memory game ! Source: micro-examples

For transfer of digital audio between devices is standardized S/PDIF interface (electrical) and TOSLINK (optical) for commercial use, or AES3 for professional use. S/PDIF decoder module is used for converting of this interface to I2S interface, which is usually used on audio DACs. For conversion we can use for example integrated circuit CS8416 or DIR9001. [...]

This test board has a simple way of software testing for a project with LCD serial interface connection and, if necessary. The layout of the two 16 pin connectors (St1 and St2) is adapted to the microcontroller board from Batronix . The actual connection of the LCD display is universally interpreted as possible and put [...]

Generally tachometer is a gauge to measure rotation speed of any rotating things. In RC hobby tachometer is the instrument for mesauring and monitoring propeller revolutions per minute (RPM). This tachometer has some additional functionality like: thrust, pitch speed and power estimating. Source: elfly

The FabISP is an in-system programmer for AVR microcontrollers, designed for production within a FabLab. With this AVR Programmer you will be able to programm your AVR without removing it from your board. [via] Source: David A. Mellis

The NP-100v12 is a simple headphone amplifier that allows an entry level builder to experience assembling and listening to their own creation. I use the term builder as electronic experience combined with innovation which allows the creation of a device, rather than simple board stuffing. This amplifier can take on many shapes and sizes; I [...]

The main part of this project is a LCD, PIC16F870 and an oscillator LM311. The LCD is a standard 2 line 16 chars display connected in 4-wire mode to the PIC. At the bottom you will find a 4.000 MHz crystal to run the PIC. The heart of this construction is the LC oscillator based [...]

If you’ve dabbled with PIC18F microcontrollers and the USB Generic HID standard before (perhaps you’ve even tried my Building a PIC18F USB device project) then you will have noticed that there is a lot of complexity in supporting USB on both the PIC18F and the Windows host-side of things. Getting beyond the basic steps of [...]

Very brief instructable to give a circuit that makes a good simple remote for canon compact camera. For use with CHDK . What it does: Allows both a remote shutter button as well as making it so that any IR remote control (e.g. TV remote) can be used to remote control the camera. Source: j44