Q. What is the difference between LM 34 and LM 35 sensors?

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Q. Transducers produce output voltage in the form of?

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Q. What is signal conditioning?

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Q. What steps have to be followed for interfacing a sensor to a micro controller 8051?

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Q. LM35 has how many pins?

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Q. Why Vref is set of ADC0848 to 2.56 V if analog input is connected to the LM35?

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Q. What is the function of 8255 chip?

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Q. Which pins of a micro controller are directly connected with 8255?

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Q. Find the control word for PA= out, PB= in, PCL=out, PCH=out (Mode0)?

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Q. Which pins are used to select the ports and the control register?

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Q. What is the value of the control register when RESET button is set to zero?

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Q. Why MOVX instruction is being used to access the ports of the 8255?

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Q. What is correct about the BSR mode from below?

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Q. How many pins of the 8255 can be used as the I/O ports?

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Q. DS12887 is a

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Q. What is the RAM space that a DS12887 have?

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Q. How many bytes of the ROM are there for the general purpose applications?

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Q. Which bits of the Register A are used for turning on the oscillator?

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Q. Which out of the following is correct about the SQW pin?

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Q. What is correct about the UIP pin of the register A?

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