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 ADC to 8051. Circuit for interfacing ADC 0804 to AT89S51 microcontroller
Interfacing ADC to 8051 microcontroller. ADC0804 is interfaced to microcontroller AT89S51. Complete circuit, theory and program in assembly language..
Remote Control Circuit Through RF Without Microcontroller
This is a simple type remote control by using RF communication without microcontroller. In this project a remote has been designed for various home appliances like television, fan, lights, etc. It gives lot of comfort to the user since we can operate it by staying at one place. We can control any of the appliances by using this remote within the r
Digital voltmeter using 8051 microcontroller AT89S51 with circuit diagram and software
Simple 0-5 digital voltmeter using 8051 (AT89S51 microcontroller) with circuit diagram and assembly language ASM code. Simple digital voltmeter..
USB 8051 (89 series) & AVR Microcontroller Programmer
HD44780 16x2 Char LCD Interfacing with microcontroller
Analphanumeric low cost LCD Display is very essential for may small and big projects to Displayvarious type of information. Hitachi HD44780 Chipset based 16x2 char LCD is Really very cheap andeasily available in the local market. In this project we are going to learn various things about this chip set anddisplaying text on this LCD. The HD44780 1
Playing Music With 8051 Microcontroller : ECE Mini Project
Do you know our 8051 microcontroller can play music tones, here s an sample. The circuit & code given here will play the music for â€œwishes you to be ..
Microcontroller Backup Thin Film Batteries
Cymbet Corporation offers rechargeable solid state batteries for advanced microcontroller power backup. We are a leader in thin film energy storage..
ADUC812 1.3MIPS 8052 MCU + 8kB Flash + 8-Ch 12-Bit ADC + Dual 12-Bit DAC
The ADUC814 MicroConverter is a fully integrated 12-bit data acquisition system-on-a-chip. Like all of ADI`s MicroConverter products, it features precision A/D & D/A conversion and a Flash Microcontroller on a single chip.
ADUC814 1.3MIPS 8052 MCU + 8kB Flash + 6-Ch 12-Bit ADC + Dual 12-Bit DAC
The ADUC816 is a complete smart transducer front-end, inte- grating two high-resolution sigma-delta ADCs an 8-bit MCU, and program/data Flash EE Memory on a single chip. This low power device accepts low-level signals directly from a transducer. The two independent ADCs (Primary and Auxiliary) include a Temperature Sensor and a PGA (allowing direc
ADUC816 1MIPS 8052 MCU + 8kB Flash + Dual 16-Bit ADC + 12-Bit DAC
The ADUC831 MicroConverter is a fully integrated 12-bit data acquisition system-on-a-chip. Like all of ADI`s MicroConverter products, it features precision A/D & D/A conversion and a Flash Microcontroller on a single chip. For detailed documentation on the ADUC831 please click the "Datasheets" buttons at left. The ADUC831 is 100% hardware backward
ADUC831 1.3MIPS 8052 MCU + 62kB Flash + 8-Ch 12-Bit ADC + Dual 12-Bit DAC
The ADUC832 MicroConverter is a fully integrated 12-bit data acquisition system-on-a-chip. Like all of ADI`s MicroConverter products, it features precision A/D & D/A conversion and a Flash Microcontroller on a single chip. The ADUC832 is 100% hardware backward compatible with the ADUC812 except that it requires a different crystal. If you require
ADUC832 1.3MIPS 8052 MCU + 62kB Flash + 8-Ch 12-Bit ADC + Dual 12-Bit DAC
The ADUC836 MicroConverter is a fully integrated 16-bit data acquisition system-on-a-chip. Like all of ADI`s MicroConverter products, it features precision A/D & D/A conversion and a Flash Microcontroller on a single chip. The ADUC836 is 100% backward compatible (hardware and software) with the ADuC816. It is available in 52-pin PQFP or 56-pin CSP
ADUC836 1MIPS 8052 MCU + 62kB Flash + Dual 16-Bit ADC + 12-Bit DAC
The ADUC841 ADUC842 ADUC843 are complete smart transducer front ends, that integrates a high performance self- calibrating multichannel ADC a dual DAC and an optimized single-cycle 20 MHz 8-bit MCU (8051 instruction set compatible) on a single chip. The ADUC841 and ADUC842 are identical with the exception of the Clock Oscillator circuit; the ADUC8
ADUC841 20MIPS 8052 Flash MCU + 8-Ch 12-Bit ADC + Dual 12-Bit DAC
The ADUC845 MicroConverter is a fully integrated Dual 24-bit, Multi-Channel Sigma Delta ADC and Flash Microcontroller on a single chip. This device is a multi-channel extension of ADIs popular ADuC844 and ADuC846 MicroConverter family and is optimized for applications in Industrial Control smart Sensors loadcells and instrumentation that require p
ADUC845 12MIPS 8052 Flash MCU + 10-Ch 24-Bit ADC + 12-Bit DAC
AH1751 is a single-digital-output Hall-effect Sensor for high temperature operation. The device includes an on-chip Hall voltage generator for magnetic sensing, an Amplifier to amplify Hall voltage, and a Comparator to provide switching hysteresis for noise rejection, and an open-collector output pre-driver. An internal band-gap Regulator is used
AT89C51-12PI AT89C51 80C31 Microcontroller With 4K Bytes Flash Use AT89S51
The ATA5423 ATA5425 ATA5428 ATA5429 is a highly integrated UHF ASK/FSK multi-channel half-duplex trans- ceiver with low power consumption supplied in a small 7 x 7 mm QFN48 package. The receive part is built as a fully integrated low-IF receiver, whereas direct PLL modulation with the frac- tional-N synthesizer is used for FSK transmission and swi
ATMEGA128RFA1 AVR Microcontroller And Best-in-class 2.4GHz RF Transceiver
The ATR0981 is a monolithic IC manufactured using Atmels advanced SiGe technol ogy. The IC performs a transmit and receive front-end function, dedicated for a frequency range of 300 MHz to 500 MHz. It consists of a Low-Noise Amplifier (LNA) and a Power Amplifier (PA) with good Power-added Efficiency (PAE). By ATMEL Corporation
CYWUSB6953 WirelessUSB? PRoC? Flash Programmable MCU + Radio
Dimmer Using The Z8 Microcontroller
Introduction The ignition Timing lights in common use range from simple neon to complex units. Neon Timing lights have a drawback that due to their low light output, the user is forced to operate them in subdued lighting. This becomes a safety hazard as one tends to hold the unit close to the Timing mark and to the invisible (or apparently stat
Electric Bike Bldc Hub Motor Control Using The Z8fmc1600 Mcu
This circuit also prevents the shutdown circuit of the IR2161 from operating in the normal way and therefore the external SCR based protection circuit also needs to be added.
Flashflex Microcontroller Control Of Character Lcd Module
The FM497 is an integrated electronic ignition controller for breakerless ignition systems using Hall effect Sensors The device drives an NPN external darlington to control the coil current providing the required stored energy with low dissipation. This circuit has many advantages: low power dissipation, stable, high ignition energy, self-protecti
Fsk Modulation And Demodulation With The Microcontroller Msp430
The FX919A is a CMOS integrated circuit that contains all of the baseband signal processing and Medium Access Control (MAC) protocol functions required for a high performance 4-level FSK Wireless Packet Data Modem. It Interfaces with the modem host processor and the Radio modulation/demodulation circuits to deliver reliable two-way transfer of the
Implementing A Sewing Machine Controller With An Mc9rs08ka2 Microcontroller
The MIC2199 is a synchronous buck switching Regulator controller. An all N-Channel synchronous architecture and powerful output drivers allow up to a 20A output current ca- pability. The MIC2199 operates from a 4. 5V to a 32V input and CAN be programmed for output voltage from 0. 8V to 6V. The 300kHz switching frequency allows the use of smaller...
Lin Temperature Sensor Using The Mc68hc908qt/qy Mcu
The LinkSwitch-LP family is designed to replace inefcient line frequency linear transformer based power supplies with output powers < 2. 5 W in applications such as cell/cordless phones, PDAs, digital cameras, and portable Audio players. LinkSwitch-LP may also be used as auxiliary supplies employed in applications such as white goods. LNK564P Li
Mcu Reset And Oscillator Circuits Applicationnote
Introduction The MIC2290 is an internally compensated standard step- up Switching Regulator with an integrated power Switch and Schottky Diode The attribute of an internal power Switch and Schottky Diode makes the MIC2290 the most optimized solution for 48V Avalanche Photo Diode (APD) applications. In addition to the critical integrated components
Microcontroller Interface To The Adc12038 Families
Microcontroller Oscillator Circuit Design Considerations
A Simple Keypad Using Lin With The Mc68hc908qt/qy Mcu
Introduction The design of off-line constant voltage, constant current (CVCC) power supplies NCP1014 for cell phone, hand tool, and similar Battery Chargers CAN present several challenges if low cost and circuit simplicity are necessary, yet good performance and high efficiency are required. One typical problem is associated with deriving a simple
A Unipolar Stepper Motor Drive Using The Z8 Encore! ?® Mcu
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 pseudo- baseband signal into a on-chip 2-bit A/D converters The device CAN operate on a suppl
Window Lift/sunroof Lin 2.0 Slave Based On The Mc68hc908ey16 Microcontroller
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- TR1G meets the stringent WCDMA linearity requirements for output power of up to 28 dBm. By
Make a singing MSP430 microcontroller
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 calculate the ideal low pass filter for a given frequency with a calculator like this. I u
Record audio with the MSP430 microcontroller
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 done with an operational amplifier, or op-amp. The op-amp amplifies the tiny, oddly centere
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