本帖最后由 ksimem 于 2013-7-30 14:57 编辑
感谢您的回复。
我发现arduino.cc网站上的arduino 2009、arduino diecimila的照片上都没有安装这个器件。
另外,您给出的网址来看,有人回复R2应该是100nF的电容。
下面引用上面的网址给出的内容:
。。。
That's for the famous auto reset feature. Actually, those are _not_ resistors, but capacitors! And one of them is not on the PCB. I think the diecimila is only equipped with "R3", to auto reset on DTR.
。。。
Thanks for that, madworm.
Isn't labelling a capacitor with an 'R' instead of a 'C' a little confusing? Or does the 'R' stand for something other than "resistor"? Maybe "reset"?
Also, is the RTS#/R2 capacitor for a different purpose?
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