Discuss and post your doubts regarding your projects. or any help required...
dear sir i have few doubt in page http://www.8051projects.info/blogs/post/8x8-Dot-Matrix-Digital-Clock-using-AT89S51.aspx which port is row and which port is column ? pls reply soon santosh
Sir, congratulations for winning the Nokia prize and this project!! I have searched this forum, but i cant find the bluehome project details, circuit and PCB and software code for mobile s60, and can the same hardware was used for this...
can u please tell me how can we increase the range of IR so that the distance between receiver and transmitter cam increase upto 5 metre.
hi all,, let me ask questio, i have a difficulty of searching a hall effect transistor.. what is the commonly used hall effect transistor? i dont know what the part number of that transistor to buy. help pls..:eek:
I'm developing RFID Security System by referring to Binu project. I'm using ID12 module as the reader for this project and interface it with PC through RS232 to get the ASCII data for each tag(card). I'm getting something like this:(0D 00 6A 81 DB...
give me the working of this circuit and the use of each component in the circuit
dear all... please help me, i'h project to controlling hardware like lamps, (3 relays). i use micro atmel AT9S51 and C programing help for schematic:confused::(, and layout i wanna like this (i used diptrace schematic and PCB layout) ...
PIC 16F877A interface Sparkfun Bluetooth SMD Module WRL-08474 Hello, I am an engineering student working on a project based on Remote Data Display System using bluetooth for wireless communication. Below, I have described the project contents and...
Hello BINU, Please review my schematic diagram, especially the ULN and the relays, I have been waiting for this past 4 days now, and it seems only you are the one who has an idea about the ckt diagram. so, I would like to request you to...
to binu sir when we connect mobile BT to the Ckt BT can w recive the DTMF tone in the ckt this idea is for modifing the ckt
hello binu, my laptop has no serial port so i decided to use usb to serial converter cable, but how do i know the com-port number, and what are the range of nos that can be generated by the computer so that i can make my program flexible such...
Hey Binu, Greetings! Can you suggest, which AVR programmer should I use, in order to burn all the codes: for the following: AT89C52 AT89S52 ATMEGA8
Has anyone tried using SPI in 89v51..
Hi Good Morning to Everyone I am currently desiging a Automatic Trolly controller card using 89S52. simply application is that trolly move in forward and reverse direction using motor connected with it. There are two proximity switch on both...
How can I define wiegand data in assembly language? I'm currently want to write 16 bit tag number (wiegand format) to be store in 8051. So only authorize tag ID will appear in lcd as "access granted" while unauthorize will be display "error". can...
hi binu iam trying to make the usb based 8051 programmer given by u in this site but not able to understand it completely. can u tell me the meaning of j1 j2 j3, jp2 and their role in the circuit please help me iam not able to understand the...
Sir as you told me i have replaced IC CM8870PI and AT89C2051 but still there is error. My phone goes dead when i connect my circuit to telephone line. Besides that LCD display is not showing correct outputs. Can you send me the complete source code...
Sir I have prepared the project > microcontroller based caller ID. And I am facing a lot of > problems. > The LCD display says "Please dail..." when the phone is on > hook and says "Microcontroller based caller ID" when phone > is off hook. >...
I am confused with the circuit and the program code given.From the circuit description P1.0 and P1.1 is not connected to sensor 1 and 2 but in the code it is declared.The sensors are only connected to P3.4 and P3.5 .Can u check it out and help me...
sir i m making u spreedo meter project but when bile is change thete shoule b change in program tooo so in program whewe to to changes can u tell me Thank u.
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