用單片機最便宜,也最簡單不過。寫個小程序輕松搞定!9 C! U$ |. U6 I
注KM-----電機控制! a3 D1 \& k: T# W
SB-----按鍵(自己隨便定義IO口)/ y5 z, K' K5 p+ P: J1 j; O
#include<reg51.h>
: b/ X/ M+ k! f# q' P sbit KM=P0^0;! c5 [7 k) R _$ l7 m
sbit SB=P1^4;
- Y& E1 t3 A( }. \' x" i( R O void mDelay(unsigned int Delay)
& X9 ]7 E; {1 a { unsigned int i;
6 p3 `, b# A& m2 Q! g2 | for(;Delay>0;Delay--)7 Q0 L4 P; K3 L+ \7 U3 T
{ for(i=0;i<124;i++)
, I0 M# e s, r {;}
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}
: h8 n7 h2 i, ^* @( {# h: D& X6 i void main()
H; ?4 d0 [. I2 d, u* ^ {
! d, [* S( P F, l2 t" c while(1)
8 @* f# ?! M6 s0 E& T! j8 \: @ {
; J' L8 K6 X6 H# S if(SB==0)
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5 u2 m# ~3 q* D, |9 n mDelay(100);9 B8 N" [: t& z# h3 F9 v- `. K
KM=!KM;% H( ~, q: ?# `0 l
while(SB==0); //等待鍵釋放
& C5 @1 @' V: L' C mDelay(100);0 @% e% ?( R# T/ R
}; r& j. f, |; V4 B! v, a, a' E
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}
+ R$ j5 @ a* _" m2 C2 E至于PLC就更簡單了,LD X0 ALT Y0 |