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hello am working to controlling stepper motor in my simulation i use ULN2003A chip
but now i want to make it hardware i here about l297 chip to controlling stepper motor what is is the best ??
can i use just ULN2003a and the stepper will work cause in my simulation it's work but i have no idea...
hello everybody
am trying to connect LCD and keypad to PIC16f877a but after compile the code
and connect the schematic in Proteus when i Press on the keypad no out put on the LCD
i upload the micobasic program and the Proteus here
i add for each if statement else part
this is my first program
and with else statement like this
if portb.0=1
then portb.2=1
else portb.2=0
** thats mean if portb.0=1 portb.2=1
and if portb.0=0 portb.2=0
and here the led is getting off when i off the switch
in micro basic programing we are not using in if statement == it make error ..
but the wrong in my code am not using the OFF statement
thank you very much
this is my code
---------- Post added at 09:01 ---------- Previous post was at 08:56 ----------
ok ok i find it in my code there is no else statement that return the led off when the switch is off i think it should be like this
yaa i check them by adding the pulling up resistors
but the schematic u give to me will not do the job that i want the LEDs will always be ON mo matter the switch is ON or OFF
hello
thank you both for being so helpful really thank you both a lot
here is it :
the same project when am using micro-basic version 3.20 i have this problem that the led don't be OFF but
am trying it in other laptop i but using micro-basic for microchip PIC MCUs 6.0 and it's work...
hi thank u all for helping me
i do every thing u told me to do but nothing is change there no error in the code but no output i see in the Proteus i don't know what to do i there any error in my schematic in Proteus
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