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Sunday, August 23, 2009

Interfacing of Graphic LCD Module to AT89S52




The most character LCD module can be interface with micro-controller in any of these two ways of interface:

1. 4-Bit Interface

( a little bit slow LCD interface but we can safe the data input/output lines of micro-controller for other use, i.e. to interface other hardwares to it.

2. 8-Bit Interface

( This is speedy LCD interface method to any microprocessor or microcontroller, more using this interface method, one can easy develop a program in c++/C or VB6 to directly interface a character LCD with PC parallel port, some it requires in certain application.)

Graphic LCD Module:

But The Graphic LCD Module requires 8-bit data bus (DB0 – DB7). The Graphic LCD Module is normally ( foreample JHD12864J ) splited logically into two portions. One half with controller #1 (CS1) driving the left half of the display, and controller #2 (CS2) driving the right half. These two portions map directly to the physical display areas of graphic LCD. With a correct controlling sequence on pin CSx (x=1,2), D/I, and R/W, we can write any pattern, image, animation , and text in bigger fonts directly to the LCD screen at a designated column position.

The Interface of a Graphic LCD with micro-controller 8051 family.

Here we will discuss, the interfacing of GLCD (Graphic LCD module ) with micro-controller 8051 family only, I have used At89s52 in this project but you can use any micro-controller of 8051 family like at89c51 or at89c2051 , it will work with all (hopefully but not granty). There are two ways to interface the LCD with AT89S52:

1. Address/data bus memory map, i.e. use the LCD as a piece of external RAM

2. Direct I/O connection by writing high/low signal to LCD.

The first of all, we start with a task to understand the control sequence required to read or write data to the LCD module. There are several points, instruction, steps and sequences to show a graphic data or image on graphic LCD. Most common and important of them are described here as follows:

1. RS controls data or command action (D/I=LOW ? command; D/I=HIGH ? data).

2. Horizontal pixel addressed by Y address counter (0-63). The Y address indicates the column position in the horizontal direction. As, earlier describes the LCD is splitted logically in half with controller #1 (CS1) driving the left half of the display, and controller #2 (CS2) driving the right half. So the range of Y address counter is from 0 to 63, (128/2 = 64).

3. The term Page refers to 8-pixel vertically. There are 8 pages ranging from 0 to 7, thus matching a vertical matrix size of 64 pixels.

4. R/W controls data READ / WRITE (R/W=LOW ,, write; R/W=HIGH ,, read).

5. CS1, CS2, E, and RST pins are also control PINs of Graphic LCD. Direct low-level access and signal timing requirement will be taken care by hardware dependent functions.




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35 comments:

  1. Can I gate C program to interface
    Tuch Screen lcd to AT89s52.Plase its an Urgent

    ReplyDelete
  2. For TUCH screen LCD to At89s51 ot At89s52 , you will have to write a new program according to the interfacing needs. This c-code is only for graphic lcd which is not touch screen.
    IF you have any touch screen purchased, send me manual or any literature you have, i can help you in writting the c-code for that interfacing.

    ReplyDelete
  3. [b]Oregon 300[/b]

    уристический gps навигатор Garmin Oregon 300 имеет высокочувствительную антенну, контрастный цветной сенсорный экран, а так же корпус стандарта IPX7. В отличии от Oregon 200, 300-я модель имеет встроенный электромагнитный компас и барометрический высотомер. Во всем остальном Garmin Oregon 200 и 300 – два брата близнеца.


    Картография

    Устройство имеет предустановленную карту мира, а так же способно воспроизводить другие картографические продукты компании Garmin и компаний дилеров. Кроме всего прочего, с недавнего времени, приборы получили возможность обрабатывать пользовательские растровые карты, к которым можно отнести отсканированные листы, спутниковые снимки, водные лоцманские карты, а так же многие другие.

    Пылевлагозащищенный корпус

    Важнейшим параметром, который определяет работоспособность и живучесть прибора – является защита корпуса по установленному стандарту. Для Garmin Oregon – это IPX7, что очень важно для использования устройства в самых сложных условиях, будь то дождь, снег или грязь. Стоит так же отметить, что устройство способно работать на метровой глубине в течении 30 минут.

    [url=http://info.je1.ru/GPS_015.html]Подробнее...[/url]

    ReplyDelete
  4. Graphic LCD interface module with microcontroller 8031 or 89s51 or at89c2051 is required. Please give me c-code for graphic lcd. Sample program in c-language using keil c51 will be helping for us to understand.
    Thanks a lot.

    ReplyDelete
  5. Хорошая статья. Действительно было интересно почитать. Не часто такое и встречается та.Наверное стоит подписаться на ваше RSS

    ReplyDelete
  6. Please, can you help me with a tutorial on " The design of a
    microcontroller(8051) based digital alarm clock " using an LCD graphic display. and "c"-
    programmed.Kindly include circuit diagrams and the c programme.The digital clock should be able to display time, date, and an alarm for each hour clocked.

    ReplyDelete
  7. Halo sir, I am a university student.I doing a project on kid alarm location. 1 transmitter for parent and 2 receiver for kid. It need a LCD screen to show name of 2 kid, it need to type the 2 kid name. i has choose 16X2, so i should choose serial or parallel LCD? And i see got android LCD shield which include keypad from this site(www.cytron.com.my).What sir recommend for doing simply name display and power low show when battery low? i search from internet, parallel port lcd is much cheaper than serial. But it too many pin and hard to programming...sir wat ur recomment? It need do a keypad for ( ABCD....) to keyin name on keyboard...

    ReplyDelete
  8. @ Kent
    On the topic of LCD interface with Microcontroller , you will find good literature on this blog. Please have a seach first.
    In short i can tell you.
    For interfacing point of veiw, we can have two type of LCDs.
    1. Serial LCDs
    2. Parallel LCDs
    for general purpose and small projects the parallel LCD is used extensively. Because these are cheap and easy to use. These LCD required 7 to 11 ios lines for interfacing but there programming in not difficult. You can find some example on this blog too.
    The serial LCDs required lesser number of ios lines but these are costly. Your UART will be used for interfacing. Yes use is easy.
    But for learning point of veiw and having good command on project, i suggest you to use parallel LCD. But you can use any of these keeping in veiw the pocket.

    ReplyDelete
  9. be happy and love. kiss

    ReplyDelete
  10. friend please send me the c codes for graphic lcd
    my mail id is vikas2012ec@gmail.com

    ReplyDelete
  11. friend please send me the codes of c for the graphical lcd
    mail id vikas2012ec@gmail.com

    ReplyDelete
  12. 128x64 pixels graphic display module with KS0108B display driver lcd interfacing
    www.lcdinterfacing.info/KS0108B-Graphics-LCD.php

    ReplyDelete
  13. Complex Post. This enter helped me in my university assignment. Thanks Alot

    ReplyDelete
  14. Sir, I'm a university student taking my final year project. How to enter the coding for AT89S52?

    ReplyDelete
  15. @ Kaka :-
    Your question is not clear. I am unable to understand that you are asking about programming and burning the hex code in microcontroller AT89s52? OR YOu want information about the coding of project in which graphical LCD is being used and interfaced with microcontroller AT89s52? These two are seperate issues. So ask the question in more detail.

    ReplyDelete
  16. sir i want to interface graphic lcd i have problum in programming plz help me

    ReplyDelete
  17. sir i am final year student from rajasthan univercity i want to interface 128x64 pixels graphic display module with KS0108B display driver lcd interfacing please help me for programming first i want to progg. on simulator for displaying my name plase send me program n help me.

    ReplyDelete
  18. @ Anonymous (who asked for help in programming of graphic LCD)

    There are two requests to all students and hobbiest:

    1. PLEASE WRITE YOUR NAME WHEN POSTING A COMMENT ON ANY POST IN THIS BLOG , THIS WILL HELP TO REPLY

    2. The second request is PLEASE ASK COMPLETE QUESTION IN FULL DETAIL, BY ASKING ANY QUESTION PLEASE MAKE SURE YOU ARE PROVIDING ENOUGH INFORMATION REGARDING YOUR PROJECT AND QUESTION SO THAT ONE CAN UNDERSTAND REPLY

    I think, people will help me in understand what they want to know and what kind of help they required.

    coming to your question:
    You mentioned you are facing problems in programming of microcontroller during interfacing of graphic LCD with microcontroller, right, but what are the problems? should i guess or send you any answer?
    OK, i can not guess , so , the answer is

    "SORRY THE PROBLEM ARE UNKNOW"

    So, you are suggested :
    Please send me folloing three things:
    1. Circuit diagram of graphic LCD interfacing of your microcontroller project. If you have proteus ISIS, then make the project circuit diagram in it and zip all file related to it.
    2. Zip the code's files and send me

    3. write the problems

    you can send me these information on this e-mail rghkk@hotmail.com

    regards

    ReplyDelete
  19. @ somveer choudhary:-

    Where is circuit diagram of your project?

    Where is project detail?

    What is the microcontroller you are using for this graphic LCD project?

    Have you writen any code so far?

    plz send me all files related to your project.
    ZIP all files in seperate folder, one folder for proteus isis files, one folder for codes and related files, and then problem you are facing.
    ok

    ReplyDelete
  20. Riko (Interfacing ssd1289‏)October 17, 2011 at 7:24 PM

    Hi there,
    Do you have experience with SSD1289 TFT ?
    Is it possible for using MCS51 ?
    I see that I can use the port but I need more memory.
    Do you have the init code and test code for it ?
    Thank you,
    Riko

    ReplyDelete
  21. Riko (Interfacing ssd1289‏):-

    Sorry, At this time i donot have the initialltion code or test code for SSD1289TFT with microcontroller 8051 family.

    ReplyDelete
  22. Riko (Interfacing ssd1289‏)October 18, 2011 at 11:22 PM

    Hi there,
    Can I send you the schematic of this SSD1289 TFT?
    May be you can help me ?
    It's a module to be exact ( HY32D).
    Is there any speed limit for uC I use for this TFT ?
    Thanks

    ReplyDelete
  23. @ Riko (Interfacing ssd1289‏):-
    ok
    Send me the datasheet of TFT LCD SSD1289TFT, i will see and inform you, if if i could help.

    ReplyDelete
  24. hi sir this is ruchit patel i am final year student. i want report on LCD moving msg dispay. so pls help me. if u have any tipe of material than send on my mail id. my id is
    ruchit8364@gmail.com

    ReplyDelete
  25. @ ruchit patel :-
    I have uploaded all material on this blog, if you need further help, then send me youcode and circuit diagram, i will check ,, if i could , i will help you.

    ReplyDelete
  26. @rana 89s52 and 89c52 are same??

    ReplyDelete
  27. @rana :
    is 80510is same as 89s52 ... can we use programming and burner for both
    ]

    ReplyDelete
  28. yah both r same , u can use same programme for both , the only difference between these two is programming method, u can serially programme 89s52, while 89c51 can only be programmed with parallel port.

    ReplyDelete
  29. Sir, my name is Rohit Bhati. I m B.Tech. final year student. My project is GSM based Energy Meter. I want to show the reading of energy meter on 16*2 lcd but unable to display variable data on it. So please can you provide c code for the same...my id is rohitbhati@live.in..
    I would be very thankful to u...

    ReplyDelete
  30. hi. I am doing a project about casio clock which use 89C51 and LCD graphic 128x64 but don't use IC RTC DS1307. Please can you provide C code for counting clock without DS1307...?
    my email: tannha91@gmail.com
    I would be thankful to you..

    ReplyDelete
  31. where i can get this project my email id is janulnuja@gmail.com

    ReplyDelete
  32. hai i am kodeeswari. m doin my project in wireless notice board using wifi. m using at89s52 controller. the lcd display m ussing is ip configurable. so can u pls provide the code for interfacing in c lanuage. my mail id is kodees26@gmail.com

    ReplyDelete
  33. hi i need code to interface GLCD to microcontroller..send it to pmanikandan1991@gmail.com thanks in advance....

    ReplyDelete
  34. Hello sir, we are doing a project named "sms based electronic notice board",
    for that we need to interface graphical lcd jhd12864 with microcontroller at89c52
    can u provide the circuit diagram for that n also full information of project if possible..
    Thanks in advance,
    Raju

    ReplyDelete

Please note that my helps are not for free.
So, send me your problems and pay money for solution.ok
This is www.microcontroller51.blogspot.com comments section. Here you are requested to write your questions and problems about the microcontroller and electronics projects. Write the questions or comments in such a way that, it have all necessary information, so that i can understand and reply.If you want to send pictures and codes then e-mail me (rghkk@hotmail.com).Thanks.
All comments will be highly appriciated.

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Display LCD Introduction (1) MAX 232 Interfacing with Microcontroller 8052 (1) MAX 232 level converter (1) MAX 232 serial communication (1) MCS-51 family microcontrollers (1) MCU-PC-serial-interface (1) MOVING MESSAGE DISPLAY USING ATMEL 89C51 (1) MSp430 I2c (1) Mechanical methods (1) Memory of 8051 (1) Memory Model (1) Memory Organization (1) Memory mapping (1) Microchip PIC (1) Microcontroller 8051 Projects in c language (1) Microcontroller 8051 and adc (1) Microcontroller 89c52 (1) Microcontroller Applications (1) Microcontroller Circuits (1) Microcontroller Interface with PC parallel port (1) Microcontroller Port2 (1) Microcontroller data logger (1) Microcontroller to LCD (1) Microcontroller51 MCu 8051 LED interface (1) Microprocessor-Compatible (1) MixZing Music Player (1) Mode Selection (1) Modern DAC (1) Moisture Sensors Devices (1) Motor speed control circuits and projects (1) Moving Message Display (1) Multiplex 74ls138 74ls04 8051 16f877 (1) Multiplex LED seven segment diaplay with microcontroller interfacing 74ls138 74ls04 8051 16f877 (1) NAND (1) NOP in 8051 (1) NOR (1) NPN transistor (1) Non-insulated SCR (1) Nyquist A/D converters (1) Nyquist sampling criterion (1) OJ0800 DAC (1) ON-CHIP SERIAL PORT (1) OPAMP LM324 (1) Objective of the project based on microcontroller 8051 (1) On-Chip Clock Generator (1) Open (1) Operational Amplifier (1) Optical Sensor Subroutine (1) Optical sensor (1) Optocoupler and diac MOC3041 (1) PC (1) PC parallel port (1) PC side program for interfacing (1) PCM codec ICs or DSP interface ICs (1) PERIPHERAL INTERFACE PROJECT OF PRESSURE MONITORING (1) PGAs (1) PIC I2C (1) PROGRAM MEMORY (1) PWM with microcontroller 8051 for SCR or triac power control (1) Peripherals Keypad (1) Philips PDS51 development board (1) Pin assignment of liquid crystal display (1) Potentiometric (1) Potentiometric transducer (1) Pressure Sensing System (1) Pressure gauges and switches (1) Pressure monitoring with microcontroller 8051 (1) Pressure sensing and controlling (1) Pressure sensor and transducer (1) Printer Port's addresses in the BIOS Data Area (1) Program counter address (1) Programmable Gain Amplifiers (1) Programming Aspects (1) Programming Aspects of Moving message display project using 8051assembly language program for lcd (1) Project Description (1) Properties of graphite (1) Pseudo-Absolute Encoder (1) RAM of MCU (1) RAM of microcontroller (1) ROM-to-RAM ratio (1) RS-232 Level Converter (1) RS-232 Level Converters (1) RS-232 Standard (1) RS-232 communication (1) RS-232 serial communication (1) RS232 with 8051 (1) RS232 and Microcontroller 80s52 (1) RS232 and microcontroller schematics and C code (1) RS232 communication (1) RS232 serial communication (1) Receive Data (1) Receive Interrupt of 8051 (1) Register Banks of 8052 Microcontroller (1) Relative Humidity Project (1) Reluctive (1) Remote apps for PC and Mac (1) Remotely view (1) Resonant Wire (1) Routine interfacing LCD with 8051 Programmer's Corner. (1) Rs-232 smoke analyzer (1) SAKURA BOARD (1) SBUF and SCON (1) SBUF register (1) SCR control (1) SERIAL PORT REGISTERS (1) SMS Based Controlling Machines Using GSM Mobile and microcontroller 8051 (1) SN7447 (1) SN7447AN decoder (1) SN74LS373 Latch with 3-State Outputs and interface with microcontroller (1) Schematic Circuit Diagram Speedometer Accurate measurement of speed (1) Science/Research (1) Scratchpad Registers (1) Security Camera Systems (1) Selection of Humidity sensor or transducer or transmitter (1) Sensor (1) Sensors (1) Serial Communication (1) Serial Communication RS-232 (1) Serial Communication microcontroller to PC (1) Serial Interfacing of Microcontroller 8051 in Automatic Car Parking Project (1) Serial or Parallel (1) Servo Actuator and DC Motor. (1) Setting the Serial Port Baud Rate (1) Seven (1) Seven Segment Displays of Pressure Monitoring Project (1) Seven Segment Subroutine (1) Signal control on ADC0804 (1) Silicon Serial Number (1) Smartphone (1) Software Download (1) Software Freuency meter and pulse width measurement (1) Software writting procedures serial port communication (1) Solenoid Valve (1) Solenoid Valve Control System Using 8051 Microcontroller (1) Solenoid Valve Controls (1) Solenoid Valve Supplier (1) Start your car remotely (1) Static Power Switches (1) Stepper Motor Control System Interfaced with Personal Computer (1) Stepper Motor Control System Interfaced with Personal Computer serial port baud rate (1) Stepper Motor Subroutine (1) Stepper motor control in assembly lanuage (1) Strain Gage (1) Strobed Input (1) Supply Check Valves (1) Supporting AT commands (1) Synchronous Serial Communication (1) TEMPERATURE CONTROLLER (1) TEXT display (1) TIMER CONTROL (1) TRIAC control circuits (1) TTL (1) TTL CMOS logic level (1) TTL Compatible Inputs and Outputs (1) Temperature Controls (1) Temperature and Humidity Data Logger (1) Temperature sensors (1) Testing Circuit humidity sensing project (1) The Interface of ADC0804 with microcontroller 8051 (1) The MICROCONTROLLERS (1) The interface of DS17885 with at89c51 (1) Timer and counters circuits (1) Timer and counters of 8051 (1) Timer/counters (1) Transducer Types (1) Transmit Data (1) Two types of connectors are used for RS232 communication (1) U shaped tubes (1) UP and Down counter (1) USB programmer of microcontroller (1) Ultimate PC Remote Control (1) UltralISO (1) Understanding 8051 (1) Universal Blue Tooth controller software (1) Universal PC remote control from your phone or tabletRemotely browse your (1) Use of MICROCONTROLLER in Pressure Monitoring Project (1) VB6 RS-232 serial communication example program with microcontroller 8051 or PIC or AVR (1) VB6 serial interface (1) VLC (1) Von Neuman architecture (1) WDTV Media Players Remote app (1) WIN-Remote (1) Waveform Digitizer Capturing (1) Weather AnemometerRoom HumidityHome HumidityHumidity Cabinet (1) What are the time trigger applications (1) What is null modem cable (1) Wi-Fi Based Home Automation System (1) Wifi (1) Windows Media Player (1) Windows PC over Wi-Fi or Bluetooth (1) Windows Phone 8 and BlackBerry (1) Wireless Humidity Sensor (1) Wireless sensor based Vehicle central Lock Control System using Microcontroller (1) XBMC (1) XOR (1) ZERO-CROSS OPTOISOLATER TRIAC DRIVER OUTPUT MOC3041 (1) Zero crossing Optocoupler MOC3041 (1) access control car (1) accuracy of adc (1) addresses in hexadecimal are 378h (1) algorithm for pulse width measurements (1) alphanumaric LCD (1) analog input voltage to the ADC (1) analog temperature sensor (1) analog to digital conversion (1) analog voltage signal generation of 0 to 10V (1) analog-to-digital converter (ADC) (1) and 37Ah (1) and DS1685 PC real-time clocks (1) and Storing (1) android gmote server linux (1) android market (1) android remote (1) anode (1) apps for special education (1) assembly code circuits (1) assembly code projects (1) assigned devices LPT1 (1) aston martin (1) at89c51 as counter (1) atmel 2051 (1) atmel humidity Assembly Language code (1) atmel serial eeprom (1) autocop car security system (1) automatic car parking system using microcontroller (1) automatic car parking system with microcontroller (1) automatic control systems (1) avr i2c (1) best wireless camera security system (1) better resolution (1) bigger LCD (1) biomedical instrumentation (1) blocked motor start rotating (1) blue control modern (1) board development and fabrication (1) brown out detector (1) build simple calculator using keypad (1) buzzer siron (1) byte read (1) c language code (1) c language program (1) c++ code (1) calibration of ADC and DACs (1) capacitive (1) car parking and microcontroller (1) carbon dioxide (1) carbon monoxide (1) characteristics of analog sensor (1) charging the battery (1) circuit design for a elevator (1) circuit diagram (1) circuit diagram for intestinal sound detector (1) circuit diagram multiplex led (1) circuit diagram of moving message display (1) circuit diagram of serial communication via rs232 (1) circuit diagram of the microcontroller project for humidity and clocking (1) circuit diagram to interface LCD with Microcontroller 8051 (1) circuit disgram of stepper motor (1) circuit prototyping (1) clock vis (1) clocked out (1) code (1) code for gsm modem interfacing with p89v51rd2 microcontroller (1) code for microcontroller (1) commands of lcs (1) comminication (1) common (1) common 8N1 format (1) communicating direct with the aircraft computer (1) communication of the data between PC and RAM. (1) compatible digital interface (1) computer (1) condition (1) conio.h (1) construction of a pressure sensing system using 8051 (1) control cars remotely (1) control solid state relays (1) control stepper motor with 8051 (1) control system with 8051 (1) controller 8051 led display (1) convert the analog voltages to digital signal (1) cotton industry pressure monitoring project (1) crestron prodigy remote control (1) crestron remote control system (1) crestron universal remote control (1) current to voltage conversion circuit (1) current-carrying capacity (1) dac interfacing with 8051 microcontroller circuit diagram (1) data acquisition system using 8051 (1) data communication (1) data loging (1) database editor (1) db9 cable (1) db9 connector (1) db9 price (1) db9 serial (1) db9 serial port (1) debugging testing (1) decimal output value of an 8-bit ADC (1) decoded 74ls138 (1) designed pressure sensor and transducer (1) diagram (1) difference between timer and counter microcontroller (1) digital clocks and digital watches (1) digital clocks and watches (1) digital converters (1) digital electronics (1) digital gate 74LS08 (1) digital logic (1) digital presentation of pressure (1) digitally operated valve (1) directly converts displacement (1) disk (1) display (1) dos.h (1) download codes for free (1) download gmote (1) dsp i2c (1) duty cycle controller (1) easy way to monitor pulses from heart on finger (1) electromagnetic (1) electromagnetic switches (1) embedded system products (1) emission (1) emulator kit (1) encoder (1) ericsson at command microcontroller (1) example programs (1) exit gate motor (1) external AT24C512 EEPROM memory (1) external and internal counters of 8051 (1) flash architecture (1) flashing text message (1) flow measurements (1) flowrate height of fluid (1) for media players (1) free remote apps iPhone and iPod Touch (1) free softwares full versions (1) frequency counter (1) frequency counter in proteus (1) fullversions (1) gmote (1) gmote 2.0 (1) gmote connection problem (1) gmote vs gmote remote (1) gom player (1) graphics.h (1) gsm control 8051 (1) handshaking and control (1) hardware media players (1) heart beat counter using microcontroller 8051 (1) hex 24 to bcd 8052 (1) hexagonal (1) hidden switches (1) hole (1) home appliance control (1) home automation (1) home security system (1) home security system microcontroller code (1) homemade materials (1) how clear lcd screen (1) how to calculate the checksum? What are HEX files? (1) hydraulic solenoids (1) hyper terminal (1) i2c 51 (1) i2c fpga (1) i2c slave (1) i2c verilog (1) i2c vhdl (1) i2c wince (1) iTunes & Foobar (1) image decpder for graphic LCD (1) image writer (1) in c51 (1) indoor plants (1) initialization of bit (1) input output ports computer (1) inputs (1) instruction register (1) interface (1) interfacing lm 35 with adc0804 (1) interfacing of 8051 (1) interfacing of ADC0804 with microcontroller (1) interfacing of LCD with microcontroller 8051 (1) interfacing of LCD with microcontroller 8051 heart beat meter display on LCD speaker for sound information (1) internal reset circuit (1) interrupt 3 (1) interrupt priority levels (1) interrupt sources (1) intrins.h (1) inverter 74LS 04 (1) inverters (1) iostream.h (1) iron bar (1) itunes account (1) keil c51 Uv2 and is tested with UV3 (1) keil c51 code (1) kmplayer winamp (1) latches (1) latech 73ls373 (1) lcd CONNECTIONS (1) lcd connexion with 8051 circuit (1) learning stuff of microcontroller (1) least significant bit (1) led grow light (1) level gauge (1) level indicator (1) level monitor (1) level sensor (1) level transducer (1) limits (1) liquid crystal display (1) liquid level alarm using 8051 microcontroller at89c51 ADC0804 (1) list of media players (1) literature on ADC (1) lm324 brigde amplifier (1) lm35 temperature sensor interface with 8051 (1) logic (1) logical TTL pulses counter (1) lpt1 (1) machine code (1) machine cycles of 8051 (1) manufacturers’ parameters (1) max232 circuit (1) max232 datasheet (1) max232 schematic (1) measure heart beats pulses with microcntroller 8051 (1) measure the frequency (1) media library and select songs (1) media players for tv (1) micro-controller and micro-processor bios and RTC interface (1) microcontroller 8051 project to monitor pressure (1) microcontroller 8052 (1) microcontroller 89c51 (1) microcontroller 89c51 89c52 8051 (1) microcontroller and MAX232 (1) microcontroller automation (1) microcontroller based lift controller for three stories (1) microcontroller based moving message display (1) microcontroller based stepper motor control. (1) microcontroller board to control Solenoid Valves (1) microcontroller connect pc (1) microcontroller interface with LCD (1) microcontroller pwm (1) microcontroller timer (1) microcontrollers or microprocessors (1) microprocessor assembly language code (1) mini project interfacing microcontroller pressure sensor (1) motor protection (1) mouse pointer (1) moving message display using 8051 microcontroller (1) multiplex LED display (1) multiplex addressing (1) multiplex input (1) multiplex seven segment six digit display (1) multiplexed address and data bus (1) nios i2c (1) noise problem in circuit (1) optical sensor in car parking (1) optocoupler circuit diagram (1) optocoupler interfacing with microcontroller (1) oscillators frequency (1) output PINs of ADC (1) oven proteus optocoupler (1) page read (1) parallel port of PC (1) parallel port programmer (1) pc i o ports (1) photoconductive (1) photovoltaic (1) plump tomato (1) pneumatic pressure (1) pneumatic solenoids (1) port expander (1) power controller (1) pressure sensor adc (1) pressure transducer or proximity (1) pressurized fluids (1) program (1) programmable frequency (1) project for at 89s51 (1) proteus i2c (1) prototype (1) proximity sensor for using liquid level sense connect with microcontroller (1) pulse counter (1) pulse rate of a human heart (1) pulses (1) ratiometric (1) real player (1) receiver and transmitter (1) reg51.h (1) repeatability of results (1) resistance thermometers and thermocouples (1) resistive (1) resolution of adc (1) resolution of sensor (1) road side display boards (1) rpm meter (1) rtc ds1307 based alarm controller avr microcontroller (1) save power motor (1) save your water resources (1) scanner project (1) schmitt-trigger (1) scrolling message (1) scrolling text (1) security car alarm system (1) segment (1) sensors based data acquistion system 8051 (1) sensors based on data acquistion system using 8051 (1) sensors such as a pressure sensor (1) serial data interface between eeprom and microcntroller (1) serial eeprom (1) serial mode of communication (1) serial port (1) serial port RS 232 on 9600 baud rate (1) serial port communication (1) serial port data transfer (1) serial programmer (1) shift registers (1) show image on Graphic LCD (1) sigma-delta modulation (1) signal processing (1) simple for 8052 interfacing project (1) smart phone (1) smoke emission machine (1) smoke emission testing machine (1) smoke opacimeter (1) software (1) software for SGM modem (1) software to acquire data on PC (1) speed of adc (1) stability in response (1) stand-alone 8051 (1) stepper motor 6 wire connection block diagram (1) stepper motors (1) stepping sequences to motor (1) subroutines for lcd (1) sulphur dioxide (1) system abstract car security (1) tachometer sensor (1) tank over flow (1) temperature furnace (1) temperature measurement (1) temperature monitoring and control projects (1) temperature sensor using 8051 and adc (1) text light scrolling (1) textile industry pressure monitoring project (1) thermocouple (1) three stories lift (1) timer (1) touch cases (1) touch firmware (1) touch unlocker (1) transducers (1) transferred to micro controller (1) triac control (1) triac control circuit switches (1) triac lighting-control circuit (1) uln2003 (1) universal remote control android app (1) unln 2003 interface with microcontroller (1) use and types of Analogue Sensors (1) using 8051 counter (1) vehicle security (1) velocity (1) velocity measurement (1) verilog i2c (1) vertical scroll (1) water (1) water level monitoring and control using microcontroller 8051 (1) weatherstation (1) which is better for messuring liquid pulse width (1) which physcial quantity is measured with analog sensors (1) wifi automation (1) wireless car alarms (1) working memory model (1) write byte (1) 微控制器项目和概述 (1)