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8051 / 8052 Microcontroller Circuits
8051 / 8052 Microcontroller Circuits
Free 8052 Microcontroller Based Projects
Personal Safes are revolutionary locking storage cases that open with just the touch of your finger. These products are designed as "access denial" secure storage for medications, jewelry, weapons, documents, and other valuable or potentially harmful items. These utilize fingerprint recognition technology to allow access to only those whose fingerp
8052 Microcontroller Projects
Now-a-days every institution needs automation. As a part of college automation, we have decided to do a project Voice Interactive System for College Automation . Our project allows the user to know the student`s attendance and marks quickly through the telephone line without the intention of the college authority. In the hardware side embedded s
RC5 Protocol Decoding with 8051
Infrared light is electromagnetic radiation with longer wavelengths than those of visible light. Infrared light is used in industrial, scientific, and medical applications. Most of the remote controllers use IR light to send information. This protocol was developed by Phillips using Manchester Encoding. Information is sent in frames, where each fr
8051SBC USB & GLCD Expansion Board
8051SBC USB & GLCD Expansion Board, Electronic Circuit Schematic Wiring Diagram, 8051SBC USB & GLCD Expansion Board.
How carry on the intersection of SPICE and model and 8051 MCU in coordination with emulation under the NI Multisim
Multisim is the simulation software of circuit based on SPICE, SPICE Simulation Program with Intergrated Circuit Emphasis lay particular emphasis on the simulation program of the integrated circuit Abbreviation, it is here 1975, from University of California Berkeley branch school development. In Multisim9, needs to install MultiMCU and...
ADC to 8051
ADC (Analogto digital converter) forms a very essential part in many embedded projects and this article is about interfacing an ADC to 8051 embedded controller. ADC 0804 is the ADC used here and before going through the interfacing procedure, we must neatly understand how the ADC 0804 works. ADC0804 is an 8 bit successive approximation analogue to
Digital tachometer using 8051
A three digit contact less digital tachometer using 8051 microcontroller which can be used for measuring the revolutions/second of a rotating wheel, disc, shaft or anything like that is introduced in this project. The tachometer can measure up to a maximum of 255 rev/sec at an accuracy of 1 rev/sec. What you just need to do is to align the sensor
Ultrasonic range finder using 8051
A simple ultrasonic range finder using 8051 microcontroller is presented in this article. This ultrasonic rangefinder can measure distances up to 2. 5 meters at an accuracy of 1 centi meter. AT89s51 microcontroller and the ultrasonic transducer module HC-SR04 forms the basis of this circuit. The ultrasonic module sends a signal to the object, then
Water level controller using 8051
A water level controller based using 8051 is shown in this article. A lot of water level controller projects have been published in this website but the is the first one based on a microcontroller. This water level controller monitors the level of the over head tank and automatically switches on the water pump when ever the level goes below a pres
LCD CLOCK USING 8051 (89s51) Microcontroller
This is a real time clock by using 89c51 micro-controller, clock`s data format is hour:min:sec, and it is displayed on 16x2 LCD, the code has been tested and compilled on Keil uVision compiler, circuit diagram for the project is shown below.
Keyboard Interfacing to 8051
The key board here we are interfacing is a matrix keyboard. This key board is designed with a particular rows and columns. These rows and columns are connected to the microcontroller through its ports of the micro controller 8051. We normally use 8*8 matrix key board. So only two ports of 8051 can be easily connected to the rows and columns of the
Decimal Counter Using Two 7-segment displays and an 8051
The purpose of this lab is to implement a decimal counter which counts from 0 to 99. You will have to write a C program for the 80X51 micro-controller. You will then compile your C program using C51 compiler and burn it unto an 8051 stand alone chip. You will also have to do some wiring in this lab. The 8051 chip requires some connections to funct
8 channel 6 function light chaser using 8051
6 function 8 channel light chaser using 8051. AT89S51 which belongs to the 8051 family is used for generating 6 lighting sequences. Simple software and hardware..
Heart rate monitor using 8051 microcontroller .measures the heart rate from finger tip
Heart rate monitor using 8051 microcontroller. Measures the heart rate from the finger tip using IR diode photo transistor pair (Photoplethysmography). AT89S51 is the microcontroller used here..
Interfacing 16x2 LCD with 8051 microcontroller. LCD module theory circuit diagram and program in assembly language
Interfacing 16x2 alphanumeric LCD module with AT89S51 microcontroler. Circuit diagram,theory and program. JHD162 lcd module pinout and commands..
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..
Interfacing hex keypad to 8051. Circuit diagram and assembly program. Simple circuit using minimum components
Interfacing hex keypad to 8051. AT89S51 is the microcontroller. Circuit diagram and assembly language program. Testing video also provided..
A simple random number generator using 8051 microcontroller. AT89S51 is the controller used here
Simple random number generator using 8051 microcontroller. AT89S51 is the controller used here..
Software delay routine in 8051 for generating different time delays
Software delay routine in 8051 for generating different time delays. Sine wave generator circuit using software delay in 8051. AT89C51 is the microcontroller used in this project..
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
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 ..
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
Interfacing Relay to Microcontroller
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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...
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