系統(tǒng)硬件電路： 1、電源部分。 單片機(jī)工作需要+5V的直流電，所以電源部分是將220V的交流電通過(guò)變壓器轉(zhuǎn)換成9V交流電，再通過(guò)整流橋轉(zhuǎn)換成+5V直流電。此時(shí)+5V直流電很不穩(wěn)定，不符合單片機(jī)工作的需求，因此還須將電流通過(guò)濾波電容和集成穩(wěn)壓塊，逐步達(dá)到穩(wěn)壓、濾波的作用。 2、單片機(jī)控制部分。 CPU和晶振的關(guān)系如大腦與心臟一樣，如果心跳不穩(wěn)定，那大腦也不會(huì)工作的很好。晶振能提供很穩(wěn)定的頻率，使得CPU能很好的工作。 3、部分。 系統(tǒng)分為發(fā)射與接受兩個(gè)部分，發(fā)射部分是。接受部分能接收到發(fā)射的紅外線MITSUBISHI FR-A540L-G90K-NA FREQROL A500 150 HP. INVERT...
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