Mikroelektronika released a new Audio & Voice Accessory product called Audio Codec Board – PROTO. This tool features WM8731 Audio Codec and is intended for those who want to design and develop embedded applications which require audio playback. With popular price and ready-to-use examples, this board saves development time and represents an indispensable tool for [...]
The Crazy Looper is a small hand held device that allows you to create real-time noise loops with a fast modulation metallic effect. It’s a simple microcontroller project that I give an easy to build rating.
Source: rarebeasts
If you’re like me, you may or may not have secret files plotting world domination and other devious deeds. These files obviously need to be hidden from the prying eyes of sisters, FBI agents, grandparents, etc. We are going to convert a phone jack in the wall into a secret USB memory device.
Source: stonehenge360
This CNC milling machine that costs less than $100 (currently $87) to build. It can mill PCBs, wood, and even mild steel. All of the machine’s structure is MDO and is designed to be milled on the ShopBot. The leadscrews and leadscrew nuts require drilling and tapping operations that are preferrably perfomed on a lathe. [...]
This wireless hidden water gun is a real treat.Schematics and source code can be found at AVRFreaks but you must to be register.This video explain and shows the setup in action. The prankster holds onto a wireless AVR remote, and when the unsuspecting victim walks by, he activates a second AVR controlling a pump; spraying [...]
This simple device allows you to check the correct working of the USB ports of any computer, using a green led and message from your operative system.It will allow you to test the proper assembly of any port without risking any expensive device.If you normally work fixing computers this is a must in your tool [...]
GREENVILLE, South Carolina – KEMET Corporation (OTC Bulletin Board: KEME), a leading manufacturer of tantalum, multilayer ceramic, solid aluminum, film, paper and electrolytic capacitors, today announced the availability of new DSCC (Defense Supply Center, Columbus) -approved surface mount Multilayer Ceramic Capacitors (MLCCs) in smaller case sizes for defense and aerospace [...]
eMail Light project is to indicate the presence of emails that are currently on my email server with a flashing LED. I am often not right at my desk and I would like to know if I have email. Or I am near my desk, but my screen saver has kicked in while I’m working [...]
This battery charger automatically starts the charging procedure when battery voltage drops below a certain predefined value and stops after the voltage has risen above the maximum allowed value. Setup can’t be easier, just connect two alligator clips to battery terminals and plug the device in mains. This way it can stay connected for months [...]
Mikroelektronika released a new book called PIC Microcontrollers – Programming in BASIC. With this book you can learn about the programming PIC microcontroller in BASIC with practical projects, clear illustrations and detailed schematics. This book shows you, step-by-step, how to easily program PIC microcontroller using BASIC. Book is printed in Full Color, so it is [...]
The heart of this project Intelligent Battery Charger is PIC16F628. Macobt found this project on this forum and he build it this project and he tested, and it works ok, but there is several things need to be calibrated correctly to run the charger properly.
Source: Macobt
This project allows instant start sequentially but a dozen low-voltage lamps 12 V / 60 W, and makes them fade and always sequentially (but slower). This system has been designed to meet the demand of a visitor who wanted ten recessed low voltage spot in a driveway to his house, with the following function: – [...]
This circuit allows switching on a LED when the battery voltage (12V) drops below a certain threshold. The operating system is based on a comparison of tension, which comes in a zener diode. If the supply voltage is 12V and the zener diode is a 10V model (this is the case in the diagram), we [...]
This is a good looking and practical device that can be useful in many areas where countdown timer is needed. This project is based on the PIC16F84A microcontroller. The time range can be adjusted between 1 and 999 seconds. This project has 3 buttons and one of them is named Set Button. In order to [...]
A VU meter is often included in audio equipment to display a signal level in Volume Units; the device is sometimes also called volume indicator (VI). In this project we are building a basic and low cost LED VU Metre circuit . The extent (range) display is -18 dBu to +3 dBu, spread over [...]
Today we have a new category “Projects” and a new electronic project 12 Channel LED Chaser with PIC16F84A.
This project is based on the popular PIC16f84A micro-controller.The heart of this project LED chaser is the PIC16F84A PIC microcontroller.A 4MHz crystal and capacitors C1 and C2 22pf is used for providing clock pulses to the micro-controller. The [...]
