Vacuum Tubes Valves
Musical & effects
Yagi Uda Antennas
Metal Detector Circuits
Liquid Sensing Circuits
Light Sensing Circuits
Voltage Detector Circuits
Air-Gas Detection Circuits
Human Sensing Circuits
RF & Radiation
Optical Sensing Circuits
Free Energy Circuits
AC to DC & DC to DC
Solar Cell Circuits
Micro Power Circuits
Switching Power Supplies
Light Laser LED
Digital to Analog
Analog to Digital
Data Bus Circuits
Voltage to Pulse
Current to Voltage
Frequency to Voltage
RF Converter Circuits
Sine to Square Wave
Voltage to Current
voltage to frequency
Period to Voltage
Video Wall circuits
TV Video Circuits
Motor Control Circuits
8051 / 8052
PCB CAD Software
Car bike Circuits
555 Timer Circuits
Remote Control Toy
H Bridge Circuit
DIY HV Variable Cap
DIY PMA alternator
Interconnection & Timing
Digital Signal Integrity
Digital & Bipolars
Sensors & Detectors
Regulated Power Supply
4 Band Resistor
5 Band resistor
6 Band resistor
AVR Microcontroller Circuits
AVR Microcontroller Circuits
USB AVR In-System-Programmer (ISP)
Nowadays, USBis the most popular connection connection between PC and peripherals such as AVR programmers, printers, scanners etc. For that reason I had to modify my old serial AVR In-System-Programmer (ISP) to work with USB connection. You can say, "use a USB to Serial adaptorto connect your AVR ISP with your PC". Yes, that could be a solution bu
Simple Serial Programmer for AVR
Fireflies based on tiny AVR
When firs time found this article, i think it`s a great project using only few component. I like microcontroller project based on LED. And as you know this project very simple. I must try it. one day "I was always fascinated by the emergence of patterns. One I like most is the synchronization of hundreds or thousands of fireflies. First they flash
8 MHz frequency meter using AVR microcontroller
This project can measure the clock pulses fed to the Timer input of the AVR microcontroller. The Bascom code counts the clock pulses for 1 second and display it.
Credit card sized ethernet arduino controller
I love the Arduino as a simple and accessible controller platform for many varied projects. A few months ago, a purchased an Ethernet shield for my Arduino controller to work on some projects with a mate of mine it was a massive hit for the first time, I could control my projects remotely using simple software. That got me thinking The
led blinking using avr studio 5
This is a very basic tutorial for atmega32 microcontroller beginners to get started. You can call this little program as Hello World for atmega.
Atmel AT89C2051 hardware keylogers
Atmel On the PC keyboard PS 2 AT89C2051 keylogers circuit connection cable connects to the circuit between what is written in the wake of the program running.
Augmenting a Microcontroller using AVR
Microcontrollers (MCUs) are fantastic little ICs that give an extra element of versatility to your electronics, robotics or other project. But they`re really.
AVR GPS Locator using avr microcontroller
In this project i have interfaced an GPS with AVR microcontroller, the ATtiny2313 gets the location from the GPS and display it over the LCD display.
Beginners Guide AVR Programming
You will get this done in 30 min. Step 1: Parts 1. 1 X any type of circuit board 2. 1 X Atmel AVR Atmega16 microcontroller 3. 8 X 330 ohms Resistors 4.
Cellphone Operated Robot using ATmega16 AVR microcontroller
This Instructible is entered in the Category: 13 - 18 of the National Robotics Week Robot Contest.
Connecting Nokia 3310 LCD to USB using AVR
What do you do with an old phone, a microcontroller and lots of time? You hook the old phone`s LCD screen to the computer USB of course.
i2c interface to usb interface using attiny45 microcontroller
Attach any I2C client chip (thermo sensors, AD converter, displays, relais driver, to your PC via USB quick, easy and cheap! Drivers for Linux, Windows.
Ponyprog Circuit for ATMEL AVR
The ATMEL AVR programmer works with the Windows program ""Ponyprog"" which works under 95, 98, XP.
Scientific Calculator using AVR
This project gives you a nice and simple scientific calculator using AVR microcontroller. It has 2 keypads as shown in the circuit diagram and the results are.
avr parallel programmer 5
The chief advantage of this programmer is its ability to protect both the target and the PC from odd voltages when one side is powered off. The buffers are open-drain, and each is pulled up to the Vcc of the receiving party. The MC74LCX07 has an operating Vcc rating of 2. 0 to 5. 5V. In addition, this programmer is the only buffered programmer...
LPC E2468 circuit
Temperature & Humidty sensor Using AVR Microcontroller
This is a low cost way of measuring temperature and humidity with a computer interface and is intended to be an entry level project for high school students on a tight budget.
Getting started with AVR development
You can buy ready-made programmers, but why spend money when you can build it yourself from parts that you have lying around The simple SI-Prog doesn`t require that many parts and is supported by several popular pieces of software. The full SI-Prog is designed to work with a variety of different chip types, as well as provide power to the microco
AVR TV Game
Martin ustek has modified the project to also include a Sokoban game. Some information about his version can be found dotted throughout this page; for full details, please visit his website (Czech). Either game can be selected with a menu that appears when you power up the circuit. Tetris was developed first, and so doesn`t show this menu in the f
TV remote controlled computer mouse (an avr VUSB project)
While laying in bed and watching movies on my laptop, I used to think if there is a remote control, it will be easy to pause, play, fwd, rev, adjust volume, play next etc etc without going near to the system. Then I planned to make a remote control. I don`t have a bluetooth mouse. There are many options infront of me. We can do it easily using AVR
AVR microcontroller based PWM fan controllers
So this is a bit of a continuation on my 555 timer based PWM controllers, but now using microcontrollers and MOSFETs instead of 555 ICs and transistors. I made 2 versions, one with switches for speeding up and down and the other with a potentiometer like the previous controllers. I used ATtiny25 controllers running at.
AVR Butterfly MP3
AVR ISP interface (optional but handy if you don`t like the boot loader, are too poor for a JTAG or AVR studio just crashed and disabled the on chip debugging ;) ) The following is the up to date bill of materials for the latest version of the PCB. The parts are available from Farnell and digikey with the exception of a few items. If you cannot se
AVR ATtiny USB Tutorial
This is the second part of my USB tutorial for ATtiny2313 and V-USB library. In the first part we learned how to get 3. 3V from USB to power our circuits. In this part, we will expand our setup with following parts: Update: Some people have noted that the setup I`m using here runs ATtiny2313 at 12 MHz with only 3. 3V VCC, which is outside the...
AVR for a Three Phase Generator
AVR Interrupts and binary counter
In previous article about the Atmel AVR We have only blinked with LEDs, without influence of events outside the microprocessor. All ports operated only as outputs, there was no input. Now we will show how to connect control buttons to the microcontroller and how to the INTO and INT1 pins as inputs. To demonstrate this, I chose the Atmega8 (You can
The simplest digital LCD voltmeter with AVR
This is probably the simplest possible digital voltmeter with Atmel AVR microcontroller and LCD display. The circuit is controlled by a microprocessor IO1 - AVR Atmel ATmega16A, ATmega16L, ATmega16, ATmega32A, ATmega32L or ATmega32. Below is a program to download for free and configuration bits setting printscreen. The three digit seven segment LC
Simple digital thermometer with AVR
This is a very simple digital thermometer with an Atmel AVR microprocessor, measuring the temperature in range of 2 to 99 °C (degree Celsius) with a resolution of 1 °C. The circuit is controlled by a microprocessor IO1 - Atmel AVR ATmega8, ATmega8L or ATmega8A. As the temperature sensor an integrated circuit LM35 is used. It provides the output
AVR Atmega16 Led blinking
ISP Programming Kit for AT89S52 and AVR series Microcontroller
Now you can burn microcontrollers in your home with less cost of making AT89S51 series microcontroller burning IC kit. AT89Sxx series IC`s have inbuilt ISP (In System Programming) module so we can burning microcontroller easily. Here is the simple board circuit for making of AT89Sxx series kit for burning hex file into on-chip. for my project i ha
Make AVR one-chip computer unlocking device by oneself
Arduino Projects and Circuits
PIC Microcontroller Circuits
Microcontroller Programmer Circuits
68HC11 Microcontroller Circuits
8051 / 8052 Microcontroller Circuits
Ultrasonic distance finder circuit
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is measured. There are three main categories of distance measurement methods in use: a) By...
Simple Metal detector circuit with CD4030
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to find something potentially valuable, hidden a few centimeters below the soil. So many...
Fully automatic watering circuit for flower pots
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This circuit comes as a solution to this problem. Depending on humidity of the pot at...
Simple deep searching metal detector circuit
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the circuit of this metal detector, it is possible to detect a metal coin in depth of 90 to...
Sub-Harmonic Bass Converter for Electric Guitars
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound, such as filtering or distortion. Instead, a frequency division system produces outputs...
Echo Depth Sounding Sonar for Boats
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the calibration of the rope. This arrangement still exists in some yachts. The big...
100W HiFi Audio Amplifier Circuit
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power supply must be symmetrical so that no electrolytic capacitors are needed at the outlet....
Plant-Pot Water Level Indicator Circuit
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower. The circuit of the device is shown in Figure 2. The water detection is made from the bottom...
Analogue Sound Preasure dB-Meter Circuit
The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to have a good accuracy we will get the limits of 20Hz to 20KHz. A sound to be heard does...
DIY HV Variable Capacitor
DIY PMA Alternator Plans
Digital Signal Integrity