显示页面修订记录反向链接回到顶部 本页面只读。您可以查看源文件,但不能更改它。如果您觉得这是系统错误,请联系管理员。 ====== 土壤湿度传感器 ====== ===== 1. 简要概述 ===== <html><body> <p class=MsoTitle align=left style='text-align:left;text-indent:36.0pt'><span style='font-size:16.0pt;font-family:宋体;color:#222222;letter-spacing:0pt; background:white'>土壤湿度传感器(<span lang=EN-US>Moisture Sensor</span>)是一个简易的水分传感器,可用于检测土壤的水分,传感器采用叉形设计,方便插入土壤;传感器表面镀金处理,加强了导电性和抗腐蚀性。模块插入土壤后,输出电压随着土壤湿度升高而增大。即当土壤缺水时,传感器输出值将减小,反之将增大。用于制作自动浇水系统、花盆土壤湿度检测和自动灌溉系统等。</span></p> <p class=MsoTitle align=left style='text-align:left;text-indent:36.0pt'><span style='font-size:16.0pt;font-family:宋体;color:#222222;letter-spacing:0pt; background:white'>传感器外观:</span></p> </body></html> {{ :wm_wiki:moisture_sensor:pasted:20200311-155351.png }} <html><body> <table class=MsoTableGrid border=1 cellspacing=0 cellpadding=0 style='background:#FFD966;border-collapse:collapse;border:none'> <tr> <td width=1483 valign=top style='width:1112.35pt;border:solid windowtext 1.0pt; background:yellow;padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoTitle align=left style='text-align:left'><b><span style='font-size:16.0pt;font-family:宋体;color:#222222;letter-spacing:0pt; background:yellow'>工作原理介绍:</span></b><span style='font-size:16.0pt; font-family:宋体;color:#222222;letter-spacing:0pt;background:yellow'>该模块主要是利用三极管的电流放大原理。当土壤中的水分使三极管的基极与电源正极导通的时候,在三极管的基极和发射极之间就会产生一定大小的电流,此时在三极管的集电极和发射极之间就会产生一个一定放大倍数的电流,该电流经过发射极的电阻产生电压供<span lang=EN-US>AD</span>转换器采集。</span></p> </td> </tr> </table> </body></html> ===== 2. 参数规格 ===== <html><body> <div align=center> <table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 style='border-collapse:collapse'> <tr> <td width=244 valign=top style='width:183.0pt;border-top:solid #5B9BD5 3.0pt; border-left:solid #5B9BD5 3.0pt;border-bottom:solid white 2.25pt;border-right: none;background:#5B9BD5;padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:18.0pt;font-family:宋体;color:white'>参数</span></b></p> </td> <td width=528 valign=top style='width:396.0pt;border-top:solid #5B9BD5 3.0pt; border-left:none;border-bottom:solid white 2.25pt;border-right:solid #5B9BD5 3.0pt; background:#5B9BD5;padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:18.0pt;font-family:宋体;color:white'>值<span lang=EN-US>/</span>描述</span></b></p> </td> </tr> <tr> <td width=244 valign=top style='width:183.0pt;border-top:none;border-left: solid #5B9BD5 3.0pt;border-bottom:solid white 1.0pt;border-right:solid white 1.0pt; background:#5B9BD5;padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:18.0pt;font-family:宋体;color:white'>工作电压</span></b></p> </td> <td width=528 valign=top style='width:396.0pt;border-top:none;border-left: none;border-bottom:solid white 1.0pt;border-right:solid #5B9BD5 3.0pt; background:#5B9BD5;padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US style='font-size:18.0pt;font-family:宋体;color:white'>DC 5V</span></p> </td> </tr> <tr> <td width=244 valign=top style='width:183.0pt;border-top:none;border-left: solid #5B9BD5 3.0pt;border-bottom:solid white 1.0pt;border-right:solid white 1.0pt; background:#5B9BD5;padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:18.0pt;font-family:宋体;color:white'>通信方式</span></b></p> </td> <td width=528 valign=top style='width:396.0pt;border-top:none;border-left: none;border-bottom:solid white 1.0pt;border-right:solid #5B9BD5 3.0pt; background:#5B9BD5;padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><span style='font-size:18.0pt;font-family:宋体;color:white'>模拟值读取</span></p> </td> </tr> <tr> <td width=244 valign=top style='width:183.0pt;border-top:none;border-left: solid #5B9BD5 3.0pt;border-bottom:none;border-right:solid white 1.0pt; background:#5B9BD5;padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:18.0pt;font-family:宋体;color:white'>返回值范围</span></b></p> </td> <td width=528 valign=top style='width:396.0pt;border:none;border-right:solid #5B9BD5 3.0pt; background:#5B9BD5;padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US style='font-size:18.0pt;font-family:宋体;color:white'>0~1023</span></p> </td> </tr> <tr> <td width=244 valign=top style='width:183.0pt;border:solid white 1.0pt; border-left:solid #5B9BD5 3.0pt;background:#5B9BD5;padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:18.0pt;font-family:宋体;color:white'>检测深度</span></b></p> </td> <td width=528 valign=top style='width:396.0pt;border-top:solid white 1.0pt; border-left:none;border-bottom:solid white 1.0pt;border-right:solid #5B9BD5 3.0pt; background:#5B9BD5;padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US style='font-size:18.0pt;font-family:宋体;color:white'>34mm</span></p> </td> </tr> <tr> <td width=244 valign=top style='width:183.0pt;border-top:none;border-left: solid #5B9BD5 3.0pt;border-bottom:solid white 1.0pt;border-right:solid white 1.0pt; background:#5B9BD5;padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:18.0pt;font-family:宋体;color:white'>使用寿命</span></b></p> </td> <td width=528 valign=top style='width:396.0pt;border-top:none;border-left: none;border-bottom:solid white 1.0pt;border-right:solid #5B9BD5 3.0pt; background:#5B9BD5;padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><span style='font-size:18.0pt;font-family:宋体;color:white'>大约<span lang=EN-US>1</span>年</span></p> </td> </tr> <tr> <td width=244 valign=top style='width:183.0pt;border-top:none;border-left: solid #5B9BD5 3.0pt;border-bottom:solid white 1.0pt;border-right:solid white 1.0pt; background:#5B9BD5;padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:18.0pt;font-family:宋体;color:white'>尺寸大小</span></b></p> </td> <td width=528 valign=top style='width:396.0pt;border-top:none;border-left: none;border-bottom:solid white 1.0pt;border-right:solid #5B9BD5 3.0pt; background:#5B9BD5;padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US style='font-size:18.0pt;font-family:宋体;color:white'>--mm*--mm*--mm(</span><span style='font-size:18.0pt;font-family:宋体;color:white'>长<span lang=EN-US>*</span>宽<span lang=EN-US>*</span>高<span lang=EN-US>)</span></span></p> </td> </tr> </table> </div> </body></html> ===== 3. 连线方式 ===== {{ :wm_wiki:moisture_sensor:pasted:20200318-142903.png }} {{ :wm_wiki:moisture_sensor:pasted:20200318-143147.png }} {{ :wm_wiki:moisture_sensor:pasted:20200318-143408.png }} ===== 4. 编程指南 ===== ==== 4.1. 模块功能及图形化编程指南 ==== <html><body> <p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='font-size:16.0pt;font-family:华文楷体;color:#222222;background:white'> </span><span style='font-size:16.0pt;font-family:宋体;color:#222222;background: white'>该模块支持的图形化编程平台有<span lang=EN-US>WeeeCode</span>、<span lang=EN-US>Mixly_Arduino</span>等,其图形化编程大同小异,区别不会很大。</span></p> <div align=center> <table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 style='border-collapse:collapse'> <tr> <td width=257 valign=top style='width:192.65pt;border:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:14.0pt;font-family:华文楷体;color:black;background:white'>模块功能</span></b></p> </td> <td width=223 valign=top style='width:166.95pt;border:solid windowtext 1.0pt; border-left:none;padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:14.0pt;font-family:华文楷体;color:black;background:white'>需传参数</span></b></p> </td> <td width=462 valign=top style='width:346.5pt;border:solid windowtext 1.0pt; border-left:none;padding:0cm 5.4pt 0cm 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:14.0pt;font-family:华文楷体;color:black;background:white'>图形化编程块举例</span></b></p> </td> </tr> <tr style='height:12.95pt'> <td width=257 style='width:192.65pt;border:solid windowtext 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:12.95pt'> <p class=MsoNormal align=center style='text-align:center'><span style='font-size:14.0pt;font-family:华文楷体;color:black;background:white'>返回探头的检测值</span></p> </td> <td width=223 style='width:166.95pt;border-top:none;border-left:none; border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:12.95pt'> <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US style='font-size:14.0pt;font-family:华文楷体;color:black;background:white'>(1</span><span style='font-size:14.0pt;font-family:华文楷体;color:black;background:white'>个参数)端口</span></p> </td> <td width=462 valign=top style='width:346.5pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:12.95pt'> <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US><img width=292 height=49 id="图片 1" src="lib/exe/fetch.php?media=wm_wiki:moisture_sensor:pasted:20200311-163546.png"></span></p> </td> </tr> </table> </div> <p class=MsoNormal align=left style='text-align:left;text-indent:21.0pt'><span lang=EN-US style='color:white'> </span></p> <p class=MsoNormal style='text-indent:32.0pt'><span style='font-size:16.0pt; font-family:宋体;color:#222222;background:white'>图形化编程示例:</span></p> </body></html> ==== 4.2. 文本代码编程指南 ==== <html><body> </body></html>