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I am working on a project in which i am required to play different voice messages on different occasions using 8051 I/O ports. I have experience in Micro controllers but I have no idea about how to play recorded messages and using which chips should i record these messages at the 1st place and...
Well yes that i am worried about that the voltage might be a varying one from the engine dynamo which i am going to use to indicate whether engine is running or not. The voltage signal from engine dynamo increases with acceleration. What do i have to do in that case?? In case of varying voltage...
well the signals that will be given to my 8051 from outside will be from different sensors that will be running on a car battery. I am working on interactive dash board for car usin microcontroller. The voltage will be pretty much around 12 volt. Well a simple potential driver will do it . I...
Actually I am taking input from different sensors and feeding them into Ports of 8051 Microcontroller. Some of the input are around 12 v. so i have to regulate it into 5 v to be fed into port of 8051. lets suppose i am taking 6 inputs from 6 different sensors and all of then has voltage around...
I am designing a circuit that forces me to use multiple 7805 to regulate voltage. Is their any IC that has multiple 7805 in a single IC with multiple inputs and outputs!!! Kindly HELP!!
Well the Cost is also a factor that i can't neglect. I had a look at these sharp sensors before . But they are way out of ma budget. Please Tell me about ultrasonic sensor , Are they also costly. I have never worked with ultrasonic sensor!! But how to use them. Please help me in this case !
I am using itr9909 (infra red transmitter receiver ) to find the location of an obstacle . The problem is that it only work for very short range (up to 12 cm only). While i want to extend the range to 3 ft -5 ft . Please help me in this regard. Is their any way i can achieve my required range...
Thank You brian!! but actually i am asking Y is their no COMW instruction ! IS it because of pic architecture. I knw their are other ways of complementing value in work register . Actually i am not asking alternatives of COMW and DECF. I am searching for the reason that Y is their no COMF and...
I am learning PIC assembly programming . I have came across DECF and COMF instruction . But i havent found any DECw and COMW instruction .My question is Why are their no DECW and COMW instruction which could be pretty useful in programming.
thank you for uploading the materials but i am working with 8051 . Can you help me with that . Can you tell me the interface circuit for the 8051 to DAC .
is it possible to generate wave forms other than square waves using microcontroller. Actually i wanted to generate the wave form shown in the figure. but cant figure out how to do so. Kindly help !!
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