Help with MAX232 Serial Converter troubleshooting? Answered
ok..long story short..
built this Instructable: (minimal Arduino on poerfboard,. w/ blank Atmel)
I put this on a breaboard instead
I then installed Arduino IDE, as well as WinAVR/avrdude
I tried to build a parallel programmer:
but it didnt work.. (not sure if it because of WinAVR?avrdue setting? but command line AND flashing bootloader through Arduino IDE did NOT WORK..
AVRDUDE gives this response:
avrdude: can't open device "giveio"
avrdude: failed to open parallel port "lpt1"
pinout for parallel programm was as follows:
PP ATMEL (pinout)
1 - 19
2 - 17
11 - 18
16 - 1
18 - GND on breadboard***
no clue even Ive asked and googled.. couldnt find a 'real' solution to this..
so I looked around..and I found a couple MAX232 chips laying around..figured Id use these to build a Serial Converter using this tut:
I this all set-up on my breadboard: (pics to check what Im doing wrong)
*******(the images shows the vRegulator moved over 1 pin..it has been corrected but after pic was taken)
I have checked the vRegulator portion.. I have a cap BEFORE the regulator *bridging GND & output*
and I use my meter to check that there is, in fact, 5v coming from it.. and there is...
HOWEVER... the vRegulator gets SUPER HOT, SUPER FAST!...
if I dis-connect the pin 16 form the chip to the ++ then the vRegulator does NOT get hot...
once I bridge it.. instant HEAT..
so is it something I have done wrong in my diagram?
vRegulator not show in diagram here;;
in this diagram.. as soon as I hook up the V++ to pin16 on the chip.. and the cap..etc something is wrong??
I 'do' have some FTDI cables coming from China for a few bucks.. but this is ONLY for sketch uploading...correct?
I also have a true Arduino Due coming as well... but hate waiting weeks when I want to play and get started now!
Any help is appreciated.. Im new to all this, so be nice! LOL