This project is a 2 channel infrared (IR) remote controlled relay driver with power saving. It works with 12-bit SIRC IR signals as used by Sony remote controls.
The controller also features a power save feature which reduces the relay holding voltage to 50% of the relays nominal operating voltage once [...]
This project is a simple and practical measure and know the level of reservoir. The component IC CMOS 4066 used as switcher on any level detector/sensor that connect the negative polarity pin of each LED to ground. Buzzer will be sounded if full level sensor achieved.
Source: iloveelectronic
The ESR Meter is basically an AC Ohmmeter with special scales and protective circuitry. It provides a continuous reading of series resistance in electrolytic capacitors. It operates at 100 kHz to keep the capacitive reactance factor near zero.
Source: iloveelectronic
Remember Samsung 14″ transparent OLED laptop? Samsung actually plans to release this laptop as a real product within 12 months. They also reveal that the IceTouch MP3 player will sell for around $330 and will be released in the US in the first half of 2010.
Source: OLED-Info
iPhone hacker George Hotz claims that discovered how to enter the memory and the central processor for the console games. In a blog post, George Hotz said that after a five-week effort, he’d finally managed to run his own software on the PlayStation 3, which typically only plays digitally signed software that is approved by [...]
This project it is based around a PIC16F627 micro and It is build as a countdown timer for a UV exposure box for PCB development that uses fluorescent UV lamp with following features:
Adjustable time in 15-second increments (up to 10 minutes)
Lamp preheat feature
Two button operation (with audible feedback)
Countdown alarm (when timer reaches zero)
Relay for [...]
This driver may be used for a 3 Axis CNC Machine. Based on the PIC16F870, for 3x Unipolar(5, 6 or 8 wire) Stepper Motors. It provides Full Stepping for good torque, with ability to toggle auto-shutdown of motor coils, which allows the motors and current regulation device to run cooler and require a lower output [...]
This development board is perfect for all the newbies that want to learn about AVR Microcontrollers or want to build some nice projects with it.
ATMEGA8 Development Board contains:
ISP programer
RS232 comunication (serial port)
High Power Voltage control
ON/OFF Circuit
All pins are marked
PC power jack
Source: Pop Gheorghe
How many times have you wished that you recorder your recent telephone conversation? I have, many many times. So thanks to [Trax] that he finally decided to make this happen by using PC and a piece of hardware (powered from USB) to record audio from phone line to MP3 format. He wanted this thing to [...]
The 78xx family is a very popular choice for many electronic circuits which require a regulated power supply, due to their ease of use and relative cheapness. When specifying individual ICs within this family, the xx is replaced with a two-digit number, which indicates the output voltage the particular device is designed to provide (for [...]
