Q. Which command is used to select the 2 lines and 5*7 matrix of an LCD?

View solution

Q. What changes are to be made to send data to an LCD?

View solution

Q. For reading operation from an LCD what changes in the software are introduced?

View solution

Q. Which instruction is used to select the first row first column of an LCD?

View solution

Q. The RS pin is an input or output for a controller?

View solution

Q. Which of the following steps detects the key in a 4*4 keyboard matrix about the key that is being pressed?

View solution

Q. What is described by this command: CJNE A,#00001111b, ROW1

View solution

Q. To detect that in which column, the key is placed?

View solution

Q. In reading the columns of a matrix, if no key is pressed we should get all in binary notation

View solution

Q. If we need to operate a key of a keyboard in an interrupt mode, then it will generate what kind of interrupt?

View solution

Q. To identify that which key is being pressed, we need to:

View solution

Q. Key press detection and Key identification are:

View solution

Q. Why two pins for ground are available in ADC0804?

View solution

Q. When is the function of the WR pin?

View solution

Q. State which of the following statements are false?

View solution

Q. While programming the ADC0804 IC what steps are followed?

View solution

Q. Step size is selected by which two bits?

View solution

Q. What is the difference between ADC0804 and MAX1112?

View solution

Q. Which of the following statements are true about DAC0808 ?

View solution

Q. 8 input DAC has

View solution