the automated drink maker has a remote interface that sends the command for drink selection via wireless system to the main controller.The Automatic wireless drink mixer is a final project for a group from the University of Washington’s Electrical Engineering department (ee478).
Source: borntechie
One very important Part of a Tube Amplifier is the Power Supply. It is crucial for the quality of the whole system. Especially beginners encounter problems like Hum or Drift that can become quite annoying. But resue is ahead: The following circuit uses a modern Mosfet to deliver a stable and virtually Hum-free voltage to [...]
This is a simple project, but one I hope you will find useful. Recent upgrades of 2 of my PC’s with bang-up-to-date motherboards, have demonstrated a need for USB ‘A’ socket headers, either to fit on a standard PC Component plate, or a spare blanking panel on the front of the PC. I’ve tried sourcing [...]
This mini-project is the main power-supply for the Valve Crunch/Tremelo floor pedal presented elsewhere on Connectable site. Since the PSU is a separate unit, and may be of use elsewhere I decided to document it apart from the pedal. The unit expects a 12v input at X1 – this was a cheap wall-wart in the [...]
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 [...]
