- NRF24l01_device The Nordic Semiconductor nRF24L01 is a transceiver chip operating in the 2.4GHz band. The following code is my first driver for Atmel ATMEGA8 and ATMEGA168. In my test scenario the ATMEGA168 and ATMEGA8 were connected different. The reason for this is that the ATMEGA168 supports Pin Change Interrupt which the ATMEGA8 doesn t.
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文件名称:测绘实用工具
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这是一个很好用测绘实用工具，各位同行可以下来用一下。((setvar "cmdecho" 1)
(setq en (ssget (list '(0 . "spline,arc,line,ellipse,LWPOLYLINE"))))
(setq i 0)
(setq ll 0)
(repeat (sslength en)
(setq ss (ssname en i))
(setq endata (entget ss))
(command "lengthen" ss "")
(setq dd (getvar "perimeter"))
(setq ll (+ dd ll))
(setq i (1+ i)))
(setq en (ssget (list '(0 . "spline,arc,line,ellipse,LWPOLYLINE"))))
(setq i 0)
(setq ll 0)
(repeat (sslength en)
(setq ss (ssname en i))
(setq endata (entget ss))
(command "lengthen" ss "")
(setq dd (getvar "perimeter"))
(setq ll (+ dd ll))
(setq i (1+ i)))
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