C G I又稱通用網(wǎng)關(guān)接口(Common Gateway Interface)，是外部程序和We b服務(wù)器之間的標(biāo)
準(zhǔn)編程接口， P H P隱藏了其中的大部分復(fù)雜性，但是，了解一些它的基本內(nèi)容對設(shè)計應(yīng)用程
序和進(jìn)行調(diào)試都有很大幫助。
Hey. This some pid code for the atmega88 that I once used to control a heater. It s purpose
is pretty specific, and I only wrote it to work on the mega88, so the code itself won t be too useful. It is
a good place to start if you re trying to use or figure out pid though.
