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
Interconnection & Timing
Digital Signal Integrity
Digital & Bipolars
Sensors & Detectors
Regulated Power Supply
4 Band Resistor
5 Band resistor
6 Band resistor
Interfacing Relay to Microcontroller
New AD9850 DDS Signal Generator ModuleCircuit for Arduino MCU 2560
graphical LCDs with a microcontroller
Hello to everyone! How I can control these graphical LCDs with a microcontroller? Is there any datasheet?..
IR On/Off Switch Using Microcontroller
Turn ON or OFF electrical devices using remote control is not a new idea and you can find so many different devices doing that very well. For realization..
Microcontroller driven LCD panel with voltage measurement time EEPROM for computers
Drive a four line LCD panel from an Arduino. The project started out as a way to drive the LCD to display arbitrary information, but then evolved into a way to tell the time, read and write the EEPROM from the Atmel 328p, and measure voltage. I`m using many existing libraries: the Time library, and the two Controller LCD library. Segments the...
Cheap microcontroller training package by 68HC705
The microcontroller IC is a device that looks like a common IC. But inside it, the virtual a miniature computer. This device can be used instead of transistors..
Telephone operated remote control using PIC16F84A microcontroller
You can test the board now. For example set the DIP switch to Switch1 ON, Switch2 OFF (15 sec delay) & switch3 ON, switch4 OFF (4 rings to activate half for switching ON). If you want to switch ON relay 1 (connected to RB0 of main circuit) then you have to do the following: IMPORTANT: This circuit has been tested by me and found to work correct
repair microcontroller circuit
The different between these two IC`s. A Microcontroller is a specialized form of Microprocessor that is created to be self-sufficient and cost-effective, where a Microprocessor is typically designed to be general purpose use like in a Personal Computer (PC). The Microcontroller is the integration of a number of useful functions into a single IC...
Microcontroller Clapper Switch
For those who are lazy like me, turn on or off the bedroom light without getting out of bed, simple clap your hands is amazing. Thinking about it I projected one for me. Several projects of clappers can be found on the Internet, and most of them do not use microcontroller. I chose to use a micro planning future updates, such as turn on or off...
Reset IC in Microcontroller Application
In the design of microcontroller based electronics project, the use of Reset IC is critical for highly critical applications that need to ensure that the MCU will only operate at its optimum voltage. Without the use of reset circuitry, the MCU may go into a tristate of which it may go into abnormal operation. One example of the use of the Reset...
analog light dimmer circuit connected to microcontroller
Hello everyone, I need help to modify this light dimmer circuit which is connected to PIC12C508 microcontroller. This circuit is designed for the..
Microcontroller based schematics Circuits
Microcontroller Relay Driver and Interface
Many microcontroller designs typically mix multiple interfacing methods. A microcontroller (µC) system can be viewed as a system that reads from inpu..
AVR Microcontroller Interface with Stepper Motor
In this Tutorial we are using atmega8 with 4 MHZ Crystal and unipolar stepper motors, ULN2003 is Darlington pair driver I.C s used
Pic Microcontroller 16F
The Introduction for HD44780-based LCDs with AVR Microcontroller
DTMF Based Robo Car Design & Circuit using 8051 Microcontroller
DTMF Based Robo Car Design using 8051 Microcontroller Project. This project presents a method to control a domestic system using the DTMF tone generated by transmitting telephone instrument when the user pushes the keypad buttons of the mobile phone connected to the remote domestic system
Microcontroller Based Accelerometer
Microcontroller Based Accelerometer Project. Just as a speedometer is a meter that measures speed, an accelerometer is a meter that measures acceleration
Circuit & Code for Typing Assistant using 8051 microcontroller & PS/2 port of Computer
Project with Circuit & Code for Typing Assistant using 8051 microcontroller (AT89S52) and PS/2 keyboard port of Computer. The project also explains the interfacing of PS/2 port of computer with 8051 microcontroller
8051 microcontroller ISP Programmer for AT89S51/52 series
Using an accelerometer with an AVR microcontroller
Speed Control of DC Motor using Microcontroller by using PWM ECE Project
This is a good Electronic project report on Speed Control of DC Motor using Microcontroller by using PWM. In this system, a micro controller is interfaced with a LCD, Keypad and DC motor driver. The Micro controller is used for controlling the DC motor by producing the PWM pulses. These pulse widths are produced according to the key pad register v
Microcontroller based College Automation System
This project Microcontroller based college automation system , aims to eliminate this problem especially in case of colleges and schools. In this project conventional notice board is replace by a well automated device. The circuit enables the user to hear as well as read the information being announced through a speaker and an LCD. You can also
Speed Control of DC Motor using Microcontroller 8051 withCircuit
The aim of developing this project is to control the speed of DC motor. The main advantage in using a DC motor is that the Speed-Torque relationship can be varied to almost any useful form. To achieve the speed control an electronic technique called Pulse Width Modulation is used which generates High and Low pulses. These pulses vary the speed in
Using the MCU Timers
Although there are significant variations between different implementations of the general-purpose timer in different microcontrollers, there are many similarities in the principles of operation and the structure of the timer subsystem. The central element of the timer subsystem is a counter, TCNT (8 or 16-bits in length), which may be read or (so
EPROM adapter for ATMEL 89 Series Flash Microcontroller Programmer
Diode D1 and resistor R1 provide the VDD isolation when programming the 24 pin devices. The jumper J3 must be shorted for 24 pin devices, and open circuit for 28 pin device programming. Following EEPROMs are pin compatible with their EPROMs version, We are not responsible for any injuries or damage caused by information from this website! Working
Connect to the PIC Microcontroller
It is all very well knowing how to program the PIC in theory, but the real learning comes when you try your code on a PIC and see the results yourself in a circuit. You could build a circuit each time and program the PIC to see if the program works, or you can make yourself a development board. A development board allows you to simulate the...
Circuit of 89C2051 Microcontroller Based Water Level Indicator with Voice Alarm
Atmel 8051 Flash Based Microcontroller Programmer
The Atmel Flash devices are ideal for developing, since they can be reprogrammed easy and fast. If you need more code space for your application, particularly for developing 89Cxx projects with C language. Atmel offers a broad range of microcontrollers based on the 8051 architecture, with on-chip Flash program memory.
Frequency Counter with PIC Microcontroller
If you need more sensitivity, use 74AC04 or 74HC04 instead of 74HCU04 as U1. It may be better than 74HCU04, but the frequency response of 74HC04 may be worse.
ATMEGA16 8-bit AVR Microcontroller with 16K Bytes In-System Programmable Flash
This simple AVR Programmer able to transfer hex programs to mostATMEL AVR microcontrollers. It is more reliable than most other simpleAVR programmers available out there and can be built in very shortamount of time. This Programmer support the AVR microcontroller ATmega103, ATmega161, ATmega163, ATmeg.- Master MCU based on the AVR multi
ATMEGA32 8-bit AVR Microcontroller with 32K Bytes In-System Programmable Flash
This article describes the Gadgets Gizmos and Arduino (ATMega328). The content is very simple, very helpful. Components in this article can help you understand better understanding of this article. For example, in this article, you can go to find and buy these components: ATMega328. A Geek How-To, . Circuit Kit: Overview In order to raise awarenes
Arduino Projects and Circuits
PIC Microcontroller Circuits
AVR 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...
Digital Signal Integrity
Interconnection and Timing of Digital Circuits
CMOS Circuits Tutorial