手工led显示屏的硬件组成和软件应用[2]
本帖最后由 xwt 于 2009-2-26 10:16 编辑我们来分析下走字屏都具体用到那些东西
汉字要显示,和英文不一样,一个英文,8*8的点阵就已经完全满足了,但显示汉字,最基本的要求是16*16的点阵,也就是说,一个汉字的显示,需要用到16*16个共是256颗led,两个汉字就要用到16*16*2=512颗led同理,4个汉字就是1024颗led,这也是最基本的显示,当我们想要大点的汉字,比如32*32点显示一个字【为什么,应为我们老祖宗造的是方块字啊】那就要用到32*32=1024个led显示一个汉字,两个32点高的字就要用2048个led,同理,4个32点高的字要用4096颗汉字了。我们做的手工显示屏大家可以灵活的掌握灯的间距,我们一般用的是1.5左右的间距,这样一个16*16点的字大约就是【22*22公分大小】一个32*32点的字就是【44*44公分大小】大家可以根据自己的尺寸算出来自己需要多大的字,多少字,算出来自己需要多少字后就可以选择电源了
这样分析,你是不是知道了一个显示屏要用多少灯了呢?
下面我们说一下所用的电源,这个简单,根据经验,一个字【16*16点】需要1安的5伏电源,一个大【32*32点】的字需要用到3.5安的5伏电源,那木,2个字,3个字的你也知道了吧,不知道的去面壁思过,痛恨自己不好好学习
下面,我们就来说说控制卡了,他好比是人的大脑,他掌握着整体的稳定性,今年的卡分为4种,我们边看边说吧,1简易卡
简易卡是功能简单的一种卡,他主要适合要求不高的场合,他的特点是掉电保存,可以带16个16*16的汉字。时间显示【不能取消】,接线简单,使用方便,可以显横竖字体,可以显示粗细字体,可以存大概1024字,显示方式是从左向右移动,,不过他只能做16点高的,适合初学者,低成本制作
2,多功能卡
多功能卡分为两种,长的都差不多,
这个是大点的,可以带32*256点,也就是8个32*32点高的字,或16*512点也就是32个16*16点高的字,本身可以储存70条,每条256个汉字,可以支持动画,支持自动开关机,支持1/41/8 1/16扫描方式软件可以升级,显示方式多种多样,支持在线升级,支持定时亮度调节支持......
这个小点的就是多功能小卡,这个是小点的,可以带32*128点,也就是4个32*32点高的字,或16*256点也就是16个16*16点高的字,本身可以储存70条,每条256个汉字,可以支持动画,支持自动开关机,支持1/41/8 1/16扫描方式软件可以升级,显示方式多种多样,支持在线升级,支持定时亮度调节支持......
下面的卡是2009年2月份新出的卡,我们管他叫2009吧,他的特点是支持64*1024点
上图
本卡功能多,支持所有的扫描方式【静态,1/2 1/4 1/8 1/16】最大的长处是他甚至支持不常见的7扫,5扫,3扫,,,真的很强大,他支持64*1024点,也就是64点高的字即64*64点的字16个,32点高的字32个,16点高的字128个,,卡做工精细,关键是在各种扫描方式下均不闪烁,程序简练,主程序只有2m不到,支持的动画和显示方式豪不逊色
,
下面,我们来说说驱动卡
什么是驱动卡,他就是解释控制卡的指令,来控制led亮灭的东西,他上连控制卡,接受控制卡的各种信号,,在经过138译码,595译码后,控制led的亮灭
我们来看一下原来没有改造前的驱动卡吧
这种驱动卡一个卡能在1/16扫描方式下驱动16*32点led,也就是说每两个16点*16点高的字在16扫的情况下需要一块这种控制卡,
在1/8的扫描方式下,这种卡能带16*16点led,也就是说在8扫方式下每个16*16点的字需要一块这种控制卡,
4扫情况下不建议用这种卡,特此不在介绍
这种驱动卡的特点就是适合新手操作和理解显示屏的控制和驱动原理,适合新手学习和制作16扫的走字电子灯箱
我们今年新出的卡把行扫和列扫分开了,行扫就是正极,列扫就是负极,这样我们即控制了非16扫描方式下的成本,又可以让新学习的新人快速理解,新卡的16扫正极卡【行扫卡】
16扫正极行扫卡可以做8个16*16点的字,也就是说,8个16点高的字只需要一块16扫的16扫正极行扫卡就可以了,比较适合大点的牌子使用
4扫正极行扫卡
4扫正级行扫卡可以做2个16点*16点的字,也就是说2个16点高的字在4扫的情况下只需要一块4扫正极行扫卡就可以了,比较适合做高亮度的牌子使用
列扫卡
列扫卡不分扫描方式,上图
列扫负极卡,每个卡上输出16*2根负极线,
16扫描方式下,每两个16*16点的字需要一块列扫负卡,每一个32*32点的字需要2个列扫负卡
4扫方式下,每一个16*16点字的字需要2块列扫负卡,每一个32*32点的字需要8个列扫负卡
总结:4个16点的字,也就是16*64点的屏
16扫的方式下需要旧式的驱动卡2张,控制卡一张,电源5伏5安一个,
16扫的方式下需要新式行扫正极卡一张【16扫卡】,列扫卡两张,控制卡一张 电源5伏5安一个
4扫的方式下,需要旧式的驱动卡8张,控制卡一张,电源5伏5安一个,
4扫的方式下,需要新式的行扫正极卡两个【4扫卡】,列扫卡8张,控制卡一张,电源5伏5安的一个,
【正在写】 急盼列扫,急急急急急急急急急急!!!!!!!!!!!!!! 也就是说做一个4扫的16X64的4字灯箱需要2块行扫4块列扫!对不? 看来做4扫是比以前简单了!{:1_145:} 好东西顶顶好东西顶顶——本文来自〖www.521LED.com〗原帖地址:好东西顶顶——本文来自〖www.521LED.com〗原帖地址:http://www.521led.com/viewthread.php?tid=239&fromuid=73http://www.521led.com/viewthread.php?tid=239&fromuid=73 能讲一下什么是*扫?
什么是4扫 16扫
我有点不懂 加强学习!加深理解!!加快把好东西做出来!!! 能懂,但还是需要自己动手,才能全面掌握! 好东西!学习学习!顶! 看得是有点晕,不过我会努力 老大,怎么不讲讲8扫呀。 ***400;200;400,200;;** m40,23 l39,24,39,27,37,30,35,36,35,39,33,44,33,56,36,59,37,59,45,67,47,68,49,70,49,71,51,72,52,73,52,74,55,74,56,75 e|********* m53,52 l52,52,50,54,49,57,46,59,44,61,38,66,35,68,32,69,26,72,24,72,22,70,22,69 e|********* m17,50 l52,50,58,51,62,51,65,52,70,52 e|********* m86,39 l102,39,102,46,101,48,98,51,96,51,96,57,97,59,98,62,100,66,102,67,102,69,103,70,103,75,91,75,85,72,79,70,77,69,74,68,73,68,73,66 e|********* m74,58 l97,58,106,59,111,59 e|********* m143,36 l143,45,141,49,141,52,139,56,139,59,138,59,138,64,139,65,140,67,145,72,147,73,148,74,150,75,151,76,151,77,153,77,153,73 e|********* m146,58 l146,65,145,67,143,70,142,71,136,71,134,70,133,69,125,65 e|********* m129,55 l157,55 e|********* m175,47 l186,47,189,48,193,48,194,49,194,50,195,50,195,54,194,55,194,57,193,58,191,59,190,59,190,60,189,60,189,69,190,70,190,72,191,74,193,75,194,77 194,81,192,81,188,79,185,78,179,74,177,73 e|********* m168,65 l221,65 e|*******#f33;* m254,39 l256,39,258,41,259,43,261,45,263,46,264,48,266,49,273,49,274,48 e|********* m275,42 l275,44,276,45,276,46,278,48,281,48 e|********* m294,43 l295,43,295,57,294,57,293,58,290,58 e|********* m256,57 l256,61,257,63,257,65,258,66,258,70 e|********* m259,60 l278,60,281,61,299,61,299,62,303,66,303,95,302,95,302,99 e|********* m276,77 l282,77,285,78,286,78,286,85,285,86,285,102,286,104,287,105,287,112,286,112,282,110,281,109,275,105 e|********* m269,93 l291,93 e|********* m335,53 l340,53,342,54,347,55,350,55,354,56,359,57,363,59,368,59,370,60,372,62,372,63,373,65,373,67,375,71,375,73,376,76,376,80,378,83,378,94,379,98 379,104,380,108,380,110,381,113,381,120,380,120 e|********* m346,80 l349,80,357,84,362,84 e|********* m351,105 l351,104,352,103,354,103,355,102,355,101,358,101,359,100,360,98,362,98 e|********* m31,126 l33,124,34,124,35,123,62,123,61,124 e|********* m32,156 l69,156,69,155 e|********* m59,140 l58,141,58,146,56,149,55,152,55,157,53,160,51,166,49,171,49,172,48,174,47,174,47,176,46,177,46,178 e|********* m56,168 l60,170,60,171,66,177,69,179,71,181,75,183,77,185,80,187,82,188,85,190,89,192,90,193,90,189,92,187 e|********* m118,124 l133,124,139,125,142,126,147,127,157,127,154,130 e|********* m128,142 l128,143,132,143,134,144,137,145,145,145,149,146,159,146 e|********* m144,137 l144,143,142,150,140,158,138,164,137,169,136,170,135,172,134,173,134,174 e|********* m143,161 l144,161,145,162,151,171,155,174,158,176,160,179,163,181,166,182,168,183,169,184,170,184,170,183 e|********* m234,124 l234,127,231,130,230,132,228,134,227,137,225,139,225,140,223,142,222,142,222,150,224,153,224,156,225,161,227,164,227,173 e|********* m234,143 l286,143,287,144,288,144,292,148,294,152,296,154,297,157,299,161,299,171,298,173,298,175,297,177,297,179,295,181,295,182,294,182,294,183,293,184,291,185,288,185 275,183,269,182 e|********* m260,156 l263,156,269,162,269,172,263,172,262,171,261,171,260,170,260,169,259,168,259,160 e|********* m341,130 l341,131,342,132,343,134,343,136,345,139,346,142,347,144,348,147,349,152,352,161,352,164,353,167,354,169,354,168 e|********* m354,157 l365,157,367,158,366,158 e|********* m329,172 l348,172,350,173,368,173,369,174,377,174 e 我真的想学,希望我能早早的做出来。你相信我吗? 我还真的是看不太懂呀! 见贴就顶,就是为了快点回复!——本文来自〖www.521LED.com〗原帖地址:http://www.521led.com/viewthread.php?tid=57&fromuid=542 高手,认真学习中!!! ***400;200;400,200;;#f39;* m52,48 l51,48,50,49,49,51,46,54,46,56,41,59,39,63,37,66,36,67,35,69,35,70,34,71,34,73,43,73,47,71,55,69,62,66,68,64,71,61,73,60 74,60 e|********* m55,93 l57,93,58,91,60,88,63,84,65,81,66,79,68,78,69,77,70,77 e|********* m66,77 l65,77,64,78,63,81,61,84,57,87,55,90,52,96,50,99,49,102,46,107,44,109,43,111,41,111,40,112,40,113,39,113 e|********* m54,99 l57,99,62,102,67,106,73,110,78,113,82,115,83,116,86,118,86,119,87,119 e|********* m39,85 l69,85 e|********* m73,76 l75,76,76,77,77,80,79,84,80,87,80,92 e|********* m75,78 l76,78,77,77,81,75,81,74,84,74,86,73,100,73,100,76,101,78,101,87,97,89,86,89,86,88,89,88 e|********* m140,44 l141,44,145,45,152,49,162,57,165,59,166,62,166,63 e|********* m162,41 l162,50,159,54,158,57,156,59,150,63,147,64,143,66,145,66,148,64,152,63,155,61,160,60,162,60 e|********* m157,61 l157,63,155,65,154,67,153,70,149,78,148,81,146,86,145,90,143,96,143,99 e|********* m157,73 l158,73,158,80,159,82,159,101,160,102,160,105 e|********* m141,85 l154,85,154,84 e|********* m148,94 l154,94 e|********* m140,97 l148,97,149,98,150,98 e|********* m120,70 l127,70,129,72,130,74,130,75,131,77,131,79,132,82,132,88,134,92,135,93,137,94,138,94,138,96,135,96,132,97,128,98,125,101,122,101,118,102,115,103 116,103,119,104,125,107,131,109,141,112,151,117,158,118,166,121,170,122,175,124,178,125,188,125 e|********* m117,48 l121,48,123,49 e|********* m197,48 l198,47,219,47,221,48,222,49,223,51,225,57,225,67,224,68,224,70,223,71,223,91,225,96,229,102,231,109,235,114,237,117,240,118,240,120,217,120 e 好/好/好/好/学习学习再学习 还是要多多的实践才能学得更快 4扫和16扫有什么区别呢??? 做4个字的需要多少成本 4扫和16扫,肉眼看起来,亮度差别大吗?
wujiansane 发表于 2009-3-26 13:47 http://www.521led.com/images/common/back.gif
同样的问题 能讲解下8扫更好 在回贴 在顶你,,,,,,,,,, hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
ddddddddddddddddddddddddddddddddddddddddd
gggggggggggggggggggggggggggggggggggggggggg 4扫和16扫有什么区别呢!~~~~~~~~~~~~~~~~~~~~~~~~~ 学习中,学习中,学习中{:1_146:} 终于看完咯,眼睛好累啊 ***400;200;400,200;;** m60,28 l60,66,61,68,61,70 e|********* m63,51 l94,51,99,49,103,49 e|********* m84,36 l83,36,82,38,82,53,81,54,81,62 e|********* m78,67 l78,68,97,68,96,69,96,70,94,72,92,75,91,77,89,79,86,83,86,85,83,88,83,91 e|********* m92,83 l93,83,94,84,98,90,102,92,105,95,115,97,119,98,125,98,135,88,139,86,140,84,141,80,145,72,146,68,147,65,148,65 e|********* m161,44 l191,44,192,43,194,43,195,42,194,42,193,46,191,49,189,53,188,56,185,60,184,63,184,81,185,83,186,84,187,86,187,93,186,94,184,94,181,95,179,95 177,93,174,92,171,92,168,89,167,89,166,87,165,86,163,85,162,84,162,80,165,77 e|********* m201,43 l203,41,204,41,205,40,209,40,213,38,216,37,218,36,221,35,226,35,226,37,229,40,229,41,230,44,230,49,227,50,225,51,213,51,212,53,211,54,210,56 208,58,208,69,211,69,212,70,213,72,217,73,219,75,221,76,229,76,229,74,230,72,233,69,233,68,234,65,234,57,233,57,233,56,220,56,216,52,214,53 213,53,212,54,212,55,211,56,211,62,213,63,225,63,225,64,224,65,224,66,223,66,223,67,220,67,217,68,217,69,216,69,216,70,212,74,211,76,206,81 204,82,203,83,201,83,201,86,208,86,208,83,210,79,210,77,211,76 e|********* m235,83 l239,83,239,91,240,92,240,95,241,95,241,97,231,97 e|********* m301,49 l321,49 e|********* m302,53 l302,55,303,57,303,59,304,61,305,64,305,91,303,95,301,96,299,98,293,98,288,96,285,95,278,95,278,93,279,92 e|********* m311,66 l313,66,316,67,339,67,337,69,337,70 e|********* m330,85 l330,93,331,95,331,97,333,99,338,99,338,88,335,86,335,85,333,83,326,83,323,86,318,87,317,87,314,88 e|********* m259,130 l274,130,274,129,280,129,280,139,276,141,274,144,264,148,260,149,272,149,275,150,277,151,278,152,278,158,274,159,270,161,263,164,261,164,259,165,259,166,263,168 265,170,267,171,272,172,279,175,285,175,284,174,282,173,281,173,278,170 e|********* m271,142 l271,170,267,176,264,179,260,187,258,189,258,192,257,192,254,195,251,196,248,199,235,199 e|********* m271,186 l272,186,273,185,290,185,290,189,287,189,285,190,284,190,282,191,274,191,274,183,291,183 e 哈哈 ,顶上来!!!!!!!!!!! 感谢老大的悉心指导,不过,什么叫4扫,8扫,16扫,7扫,5扫,3扫等,还有什么叫1/2,1/4,1/8,1/16扫描方式呀?望老大赐教。