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July 9, 2013 at 6:00 pm in reply to: How does servo motors controlled by programming uC and Where they can be purchased? #10114ShrikantParticipant
Servo motors are best for precise movements..look no further.. you can order them online..there are a variety of sites selling them..kits n spares is known to all..however they do take a few days before delivering the product..so you might want to search for a shop somewhere near your place.. you might want to check this link too –http://shop.sumeetinstruments.com/ .. i ordered a few things once from here…was spot on. Hope this was helpful
ShrikantParticipanthey..a little more information on what you have done will let us help you better .. !
ShrikantParticipanthey ajish. you were right…the input capture mode is the best..worked perfectly.. thanks a lot ..!!!
July 1, 2013 at 6:04 pm in reply to: Nokia mobile interfacing with8051 microcontroller c codes #10074ShrikantParticipantquite a late reply but still would like to help.. since you want to deal with sending and receiving of messages, you might want to check out the GSM modules available.!
ShrikantParticipanthey…i suppose you are saying that if transmitter1 transmits, it should be picked up only by receiver1..! in that case keep the address lines of the two pairs different…hopefully this helps
ShrikantParticipanthey..am assuming you want to code using c/assembly language and move out from the arduino language.!
if thats the case-download avr studio, sp3 and win avr..that should just do it..!
Sorry if i misinterpreted the question
ShrikantParticipanthey..thanks a lot for your reply..i’ve been looknig into the input capture method..trying to understand it…with the help of the datasheet..am using an atmega 328 …could you please help me with the logic of input capture…a basic idea would really help..!
Thank you
ShrikantParticipanthey..i’ll surely try that..but any particular reason for it ??
ShrikantParticipanthey. Thanks alot for the reply.
However, i’ve already used the encoder n decoder ics. The problem am facing is at the decoding of the recieved data(from the decoder ic to the muc/arduino board). When i checked it using the serial monitor, i was getting random values continuously n not the data that i transmitted.
Am using the 434MHz transmitter Reciever pairs locally available
June 12, 2013 at 5:36 pm in reply to: how to interface a rf tranmitter and receiver to microcontroller AT89S52? #9955ShrikantParticipanthey..if am not wrong, a baud rate of 2400 should work perfectly.
ShrikantParticipantseems like a very late reply but still would want to help .. !
the ultrasonic sensor can be easily interfaced with a microcontroller..using the cheap modules no external circuitry is required and you get very accurate results… you can refer the datasheet for more info.
The one i used was HC-SR 04 ..just google the data sheet..quite simple to implement
ShrikantParticipanti suppose you want to use your headphones for a project (pardon me if am wrong)
just cut your normal head phones wire..you’ll find 3 separate wires..1 is ground, the other 2 are for the left and right ear
so just put them onto the bread baord.
Hope this was helpful
ShrikantParticipanthey…i would suggest you to go with the dtmf encoder ic in order to generate the frequencies..! just a suggestion
ShrikantParticipantthere is always a maximum working frequency of the inbuilt adc..It is generally mentioned in the datasheets..!
usig prescalars you can get the frequncy high but inside the maximum frequency..
However, if you increase the frequency , the accuracy of the conversion decreases..so if you really want a fast adc, get an external one
ShrikantParticipanthello..
A bit mask is a variable used with logical operators.
Assuming you want to read the 5th pin of Portb (actually any port)
variable=PINB&(1<<PB5) // where pb5 refers to the 5th pin…PINB is used to read the values of a port
This is your mask.. it stores the value at the 5th pin into the variable
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