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i am interfacing lm35 to lpc2148 using mcb2140 development board. in this project whwn the temp goes beyond a certain value i want the speaker to sound as well as message must be sent to mobile using gsm.how to get sound from the speaker?
what are the connections to be made on the board.please specify the jumper connections. please help us out
In that same code, i am not getting understood ,what is the preset temperature value,over which if it goes ,the gsm needs to send the message.
lm35 is used whose range is -55deg to 150deg and is linear with temp in degree celsius..its sensitivity is .01v/deg