MCU Circuits
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NEC`s UPB1008K is a Silicon RFIC especially designed for handheld low power/low cost GPs receivers. The IC com- bines an LNA followed by a double-conversion RF/IF downconverter block and a PLL Frequency Synthesizer on one chip. The second IF Freqency is a.... -
The WS2512-TR1G, a Wide-band Code Division Multiple Access (WCDMA) Power Amplifier (PA), is a fully matched 10-pin surface mount module developed for WCDMA handset applications. This power Amplifier Module operates in the 1920-1980 MHz bandwidth. The WS2512-.... -
The signal from MSP430 PWM pin isn`t quite ready to drive a speaker or amplifier. First, we can clean up the signal a bit by running it through a low pass filter. This clips the sharp edges from the PWM waveform to make it sound a bit more natural. You can.... -
This project uses a small, common electret microphone to convert audio to an electrical signal. These are the cheap microphones found in most PC headsets. The microphone output must be amplified and zeroed before it can be recorded with the MSP430. This is.... -
Hello to everyone! How I can control these graphical LCDs with a microcontroller? Is there any datasheet?.... -
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.... -
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.... -
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.... -
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.... -
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)..... -
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.... -
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.... -
Hello everyone, I need help to modify this light dimmer circuit which is connected to PIC12C508 microcontroller. This circuit is designed for the.... -
Many microcontroller designs typically mix multiple interfacing methods. A microcontroller (µC) system can be viewed as a system that reads from inpu.... -
In this Tutorial we are using atmega8 with 4 MHZ Crystal and unipolar stepper motors, ULN2003 is Darlington pair driver I.C s used .. -
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.... -
Microcontroller Based Accelerometer Project. Just as a speedometer is a meter that measures speed, an accelerometer is a meter that measures acceleration .. -
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 .. -
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.... -
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.... -
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.... -
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.... -
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.... -
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....
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
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.... -
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.... -
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.... -
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.... -
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,.... -
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.... -
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.... -
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.....
Popular Circuits
The schematic requires few components, because the timer function has been incorporated by...
Power your three FSRs (or any other analog sensor) with 5V in parallel. Connect each sensor to...
Used a 12V motorcylce Battery and an ignition coil of a car. A microcontroller produces some...
This circuit has been designed to alert the vehicle driver that he has reached the maximum fixed...
A 4-bit adder which adds two four bit binary numbers with a Carry in line. The diagram above show...
If you forget to switch off the light after leaving a seldom used room (such as the loft),...
This article is of interest only to readers whose bicycle lights are powered by a dynamo. The...
A single-ended tube headphone amp using the TTVJ Millett 307A. I`ve been breadboarding various SE...
The schematic for this project flows naturally from left to right. Beginning at the antenna and...
The mechanical and electrical schematic in Figure 5 112 in FIG. Chant is a schematic diagram of...
Circuit works: When the water tank level is lower than said point, F., F2 consisting of RS...
Circuit shown in Figure 3-78. The time line also use two relays to achieve automatic control,...