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let's say i have a value in hex -0f0 stored in my memory. if i split the each digit individiually then i ll get 0,f and 0 sepaerately. if i refer each of these to a lookup table, f will have a value 15 right??
how do u suggest i display that...?
and also 0f0 in decimal is 240 which is...
I am doing a project and i have a value stored in the memory location. I need to extract the hundred, tenth and unit digit so that i can display them on three seven segment display individually....
usually we do this ( here i am taking the value to be 250 for example)
hi.... i am writing a program using pic16f887 and i am trying to save some data by writing in EEPROM. i have written the EEPROM write program as a macro and assigned values to the address and data in the main program. i need to store data in three memory locations.
ya i know!! but i will be using it many times.. so i thought using macros will be a better option. and i dont have problem if the size of the program increases.
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can u suggest some tutorials links???
i am writing a code for pic 16f887 in assembly language which has to count how many times the porta0 is switched on and set the respective port to indicate it
first time a0=1 => b0=1
second time a0=1 => b1=1
third time a0=1 => b2=1
fourth time a0=1 => goto loop
check the specification of the CT. the voltage will be specified in it
and ya rectify that voltage and by using some filter capaciters you ll get a Dc voltage
i would still recommend to use a A/D convertor module in the PIC because even by using a bridge rectifier there will be some ac riples.
Micro controller can sense signals between 3 to 5V, and a current of 30ma ( i am not sure of the specification for AT89c52.check the datasheet for the exact values). so design a circuit to drop the current from the current transformer within these limits.....
if u are using a 100a/30ma CT, then...