custom board using arduino bootloader

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so i'm looking create custom board application. due of components involved (serial lcd) , ease of programming i'd able interface/program using arduino environment. thought take of components of arduino pro mini without changing them @ , include them other components need on 1 board. there problem doing that? computer should still communicate board if mini , can programmed accordingly correct?

i have heard might necessary not have serial lcd connected tx rx pins when uploading code board. can confirm 1 way or other?

quote from: wolverineairsoft on apr 26, 2012, 01:56 pm

so i'm looking create custom board application. due of components involved (serial lcd) , ease of programming i'd able interface/program using arduino environment. thought take of components of arduino pro mini without changing them @ , include them other components need on 1 board. there problem doing that? computer should still communicate board if mini , can programmed accordingly correct?

i have heard might necessary not have serial lcd connected tx rx pins when uploading code board. can confirm 1 way or other?


you don't want serial lcd attached arduino when uploading, because serial pins used during uploading. when upload code, possible of bytes being sent on serial lines recognized commands lcd, damage (setting backlight highest value, , overtaxing powersupply example). can use software serial library around (by making regular digital pin serial pin).


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