TPYBoard v102+v202 家庭无线温湿度检测
一、实验器件1、TPYBoard v102 1块
2、TPYBoard v202 1块
3、Nokia 5110LCD显示屏 1块
4、DHT11温湿度传感器 1个
5、micro USB 数据线 2根
6、面包板 1块
7、杜邦线 若干
二、实验步骤
TPYBoard v102连接DHT11,采集温湿度信息;
TPYBoard v102将采集到的温湿度信息显示在LCD5110上;
TPYBoard v102通过串口将温湿度信息发送给TPYBoard v202;
TPYBoard v202 将串口的数据读取出来,同时传递到服务器上。
三、实验方法
1、Nokia 5110 LCD显示屏说明
LCD5110是一款84x48 的点阵LCD,可以显示4 行汉字。采用串行接口与主处理器进行通信,支持多种串行通信协议,传输速率高达4Mbps,可全速写入显示数据。
http://c.51hei.com/d/forum/201809/30/144250ocnf9fi7icxis23c.jpg
Nokia 5110 LCD共有8个引脚,不同的板子可能标注的英文略有不同,具体参照如下:
http://c.51hei.com/d/forum/201809/30/144250x54b1yk4tgyfxypz.png
2、DHT11温湿度说明
DHT11是一款有已校准数字信号输出的温湿度传感器。 精度湿度+-5%RH, 温度+-2℃,量程湿度20-90%RH, 温度0~50℃。
http://c.51hei.com/d/forum/201809/30/144250rhbhyhfukuhybujy.jpg
DHT11温湿度共有3个引脚,具体参照如下:
http://c.51hei.com/d/forum/201809/30/144251i8x6xdn1urkh8nnk.png
四、接线方式
1、针脚对应图
DHT11和LCD5110的使用方法上面都介绍过了,接下来,就要动手和我们的TPYBoard v102接起来了。
TPYBoard v102连接LCD5110
http://c.51hei.com/d/forum/201809/30/144251ikdt792klj925y44.png
TPYBoard v102连接DHT11
http://c.51hei.com/d/forum/201809/30/144251am1z44t6661o468y.png
TPYBoard v102连接TPYBoard v202
http://c.51hei.com/d/forum/201809/30/144251n3gsmogzjqqtjosn.png
2、实物连接图
http://c.51hei.com/d/forum/201809/30/144251hsedkyrryw8vre6s.jpg
http://c.51hei.com/d/forum/201809/30/144251mmsi151fzfi15ei2.jpg
四、源代码
TPYBoard v102 源代码
http://c.51hei.com/d/forum/201809/30/144251kq81pzlqvniyy7tq.png
TPYBoard v102 main.py文件内容,如下:
#main.pyimportpybimportupcd8544frommachineimportSPI,Pinfromdht11importDHT11defmain(lcd_5110,dht,uart6): data_=dht.read_data() lcd_5110.lcd_write_string(' ',0,1)#添加一个分隔行 lcd_5110.lcd_write_string('Temp:'+str(data_),2,2) lcd_5110.lcd_write_string(' ',0,3) lcd_5110.lcd_write_string(' Hum:'+str(data_),2,4) uart6.write(str(data_)+','+str(data_))#通过串口将数据发送给v202if__name__ == '__main__': #init UART u6=pyb.UART(6,115200) #init DHT11 dht=DHT11('X12') #init LCD5110 SPI = pyb.SPI(1) RST = pyb.Pin('Y11') CE = pyb.Pin('Y10') DC = pyb.Pin('Y9') LIGHT = pyb.Pin('X4') #DIN=>X8-MOSI/CLK=>X6-SCK #DIN =>SPI(1).MOSI 'X8' data flow(Master out, Slave in) #CLK =>SPI(1).SCK'X6' SPI clock lcd_5110 = upcd8544.PCD8544(SPI, RST, CE,DC, LIGHT) lcd_5110.lcd_write_string('TPYBoardv102',1,0) whileTrue: main(lcd_5110,dht,u6) pyb.delay(2000)
*其他文件详见最下方压缩包*
TPYBoard v202 源代码
只有1个main.py 文件TPYBoard v202 main.py文件内容,如下:
importmachineimportnetworkimportsocketfrommachineimportPinfrommachineimportUARTimporttimeu2=UART(0,115200)#串口初始化led =Pin(2, Pin.OUT).value(1)#板载小蓝灯 默认关闭defhttp_get(temp,hum): url='http://www.tpyboard.com/esp8266/SensorTest.php?t='+temp+'&h='+hum+'' _, _, host, path = url.split('/', 3) addr = socket.getaddrinfo(host, 80)[-1] s = socket.socket() s.connect(addr) s.send(bytes('GET /%s HTTP/1.0\r\nHost:%s\r\n\r\n' % (path, host), 'utf8')) whileTrue: data = s.recv(50) ifdata: recive=str(data, 'utf8').upper() #print(str(data, 'utf8'), end='') if(recive.find('YES')>-1): print('Send Data OK') else: break s.close()defdo_connect(): wlan = network.WLAN(network.STA_IF) wlan.active(True) ifnot wlan.isconnected(): print('connecting to network...') wlan.connect( 'ssid', 'pwd') while not wlan.isconnected(): pass print('network config:', wlan.ifconfig())do_connect()led =Pin(2, Pin.OUT).value(0)#连接wifi成功 点亮LEDwhile 1: data_=u2.readall() if data_!=None: data_=data_.decode('utf8')#数组转成字符串 data_a=data_.split(',')#分割 temp_=str(data_a)#温度 hum_=str(data_a)#湿度 http_get(temp_,hum_)#发送给服务器 time.sleep(2)
服务器源码
SensorData.php 文件内容如下:
<!DOCTYPEhtml><html><head><metacharset=\"utf-8\"><title>温湿度传感器实验</title><scripttype=\"text/javascript\"> var t; var te_html_str=\"N/A\"; function timedCount() { <?php $myfile = fopen(\"sensor.txt\",\"r\"); $txt=fread($myfile,filesize(\"sensor.txt\")); fclose($myfile); if($txt!=\"\") { echo \"te_html_str='\".$txt.\"';\"; } ?> document.getElementById('test').innerHTML=te_html_str; t=setTimeout(\"javascript:location=location;\",1000) }</script></head><body><center><div style=\"margin-top:80px\"> <h2>TPYBoardV202_温湿度传感器实验</h2> <div id=\"test\"></div></div> </center></body></html>
SensorTest.php 文件内容如下:
<?php $time_=\"获取时间:\".date('Y-m-d H:i:s'); $data_=\"传感器数据:Sensor Error!\"; $state_=\"No\"; if(is_array($_GET)&&count($_GET)>1) { $data_=\"\"; //获取温度 if(isset($_GET[\"t\"])) { $para=$_GET[\"t\"]; $data_.=\"传感器数据:温度:\".$para.\" ℃ - \"; } //获取湿度 if(isset($_GET[\"h\"])) { $para=$_GET[\"h\"]; $data_.=\"湿度:\".$para.\" % \"; $state_=\"Yes\"; } } $myfile = fopen(\"sensor.txt\",\"w\"); $txt = $time_.\"
\".$data_; fwrite($myfile, $txt); fclose($myfile); echo$state_;?>
五、效果图
实物效果图
http://c.51hei.com/d/forum/201809/30/144252tkhjjqnqyj0j0jjp.jpg
网页效果图
http://c.51hei.com/d/forum/201809/30/144252l5fbyh2x6v068chl.png
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