hemantc007
Newbie level 5
Hello everyone,
First of all I am very thankful to this forum for post and great help while reading diff threads.
After searching a lot I am posting this thread so as I can get help in solving my problem.
mu-pic16f877a
using a development board
LM324n IC for proximity sensor (checked its working i.e led is glowing and voltage of 4v as output)
input port RB2
output PORTA
My aim - To take input from Lm324n and when output is high at lm324 then glow all led of PORTA
Problem-1. When input to RB2 given by direct vcc program works (voltage at pin 4v) i.e LED glows.
2. When input to RB2 given by Lm324n output ------NONE led glow.
note:- voltage at RB2 when connected to lm324n output is .8v
and I have tried many diff combination for Input/ output ports.
I am not able to figure out the problem causing this please help.
Thank you
Regards
First of all I am very thankful to this forum for post and great help while reading diff threads.
After searching a lot I am posting this thread so as I can get help in solving my problem.
mu-pic16f877a
using a development board
LM324n IC for proximity sensor (checked its working i.e led is glowing and voltage of 4v as output)
input port RB2
output PORTA
My aim - To take input from Lm324n and when output is high at lm324 then glow all led of PORTA
Problem-1. When input to RB2 given by direct vcc program works (voltage at pin 4v) i.e LED glows.
2. When input to RB2 given by Lm324n output ------NONE led glow.
note:- voltage at RB2 when connected to lm324n output is .8v
and I have tried many diff combination for Input/ output ports.
I am not able to figure out the problem causing this please help.
Thank you
Regards
Last edited: