[资料]

webiopi配置文件说明

2014-9-18 15:47:31 3647

0 webiopi是一个可控制树莓派GPIO的web框架，该框架面向物联网IoT开发。该项目托管于google，并可在sourceforge上下载到源代码。webiopi支持REST Server，CoAP server，并提供python库和javascript库，毫无疑问的说webiopi是一个优秀的框架。从sourceforge上的信息来看，下载量前三位为美国，德国和英国，中国都20多位去了，所以我觉得应该写点什么普及一下webiopi，并顺便激励一下仍在玩树莓派的中国嵌入式工程师们。相信你们是最棒的！要熟练使用webiopi，先要对webiopi的配置有所了解，webiopi通过某一个config文件实现。 1.GPIO初始化 [GPIO] # Initialize following GPIOs with given function and optional value # This is used during WebIOPi start process #21 = IN #23 = OUT 0 #24 = OUT 0 #25 = OUT 1 【作用】 webiopi运行之后立即设置GPIO端口的状态，例如输入还是输出，若是输出的话输出高电平还是低电平 2.GPIO重置 [~GPIO] # Reset following GPIOs with given function and optional value # This is used at the end of WebIOPi stop process #21 = IN #23 = IN #24 = IN #25 = OUT 0 【作用】 webiopi结束运行之前，设置GPIO状态。该设置最好和GPIO初始化相对应，更确切的说恢复所有的GPIO为输入。 3.载入脚本 [SCRIPTS] # Load custom scripts syntax : # name = sourcefile # each sourcefile may have setup, loop and destroy functions and macros #myscript = /home/pi/webiopi/examples/scripts/macros/script.py 【作用】 script.py可理解为一个主文件，主文件中包含3大块内容，setup loop和destroy。webiopi运行之后的顺序依次是：setup运行一次，webiopi运行时loop连续运行，webiopi运行结束之前destroy运行一次。script.py文件的主要功能存在于loop中，在没有网页操作时，loop中的相关操作也会运行。 4.HTTP服务 # HTTP Server configuration enabled = true port = 8000 # File containing sha256(base64("user:password")) # Use webiopi-passwd command to generate it passwd-file = /etc/webiopi/passwd # Change login prompt message prompt = "WebIOPi" # Use doc-root to change default HTML and resource files location #doc-root = /home/pi/webiopi/examples/scripts/macros # Use welcome-file to change the default "Welcome" file #welcome-file = index.html 【作用】 1.使能或者禁止HTTP服务 2.设置HTTP服务的端口号，默认为8000，注意由于存在web各种web服务器（apache或者lighttpd），所有请勿使用80端口。 3.设置登录用户名和密码，若是新手建议不用修改。 4.设置html文件目录（请注意是目录而不是文件）。该设置经常会被修改。 5.CoAP服务 # CoAP Server configuration enabled = true port = 5683 # Enable CoAP multicast multicast = true 【作用】 1.使能CoAP服务 2.CoAP的默认端口为5683，不建议修改。 6.载入设备 [DEVICES] # Device configuration syntax: # name = device [args...] # name : used in the URL mapping # device : device name # args : (optional) see device driver doc # If enabled, devices configured here are mapped on REST API /device/name # Devices are also accessible in custom scripts using deviceInstance(name) # See device driver doc for methods and URI scheme available # Raspberry native UART on GPIO, uncomment to enable # Don't forget to remove console on ttyAMA0 in /boot/cmdline.txt # And also disable getty on ttyAMA0 in /etc/inittab #serial0 = Serial device:ttyAMA0 baudrate:9600 # USB serial adapters #u*0 = Serial device:ttyUSB0 baudrate:9600 #u*1 = Serial device:ttyACM0 baudrate:9600 #temp0 = TMP102 #temp1 = TMP102 slave:0x49 #temp2 = DS18B20 #temp3 = DS18B20 slave:28-0000049bc218 #bmp = BMP085 #gpio0 = PCF8574 #gpio1 = PCF8574 slave:0x21 #light0 = TSL2561T #light1 = TSL2561T slave:0b0101001 #gpio0 = MCP23017 #gpio1 = MCP23017 slave:0x21 #gpio2 = MCP23017 slave:0x22 #pwm0 = PCA9685 #pwm1 = PCA9685 slave:0x41 #adc0 = MCP3008 #adc1 = MCP3008 chip:1 vref:5 #dac1 = MCP4922 chip:1 【作用】载入各种设备，由于设备暂缺未详细测试。 7.REST设置 # By default, REST API allows to GET/POST on all GPIOs # Use gpio-export to limit GPIO available through REST API #gpio-export = 21, 23, 24, 25 # Uncomment to forbid changing GPIO values #gpio-post-value = false # Uncomment to forbid changing GPIO functions #gpio-post-function = false # Uncomment to disable automatic device mapping #device-mapping = false 【作用】默认的情况下，通过REST API可以控制所有的GPIO端口。这些危险操作会和loop中的功能冲突，为了防止该情况可通过配置限制REST的功能，例如设置GPIO的方法和输出电平。 8.URL重路由 # Custom REST API route syntax : # source = destination # source : URL to route # destination : Resulting URL # Adding routes allows to simplify access with Human comprehensive URLs # In the next example with have the bedroom light connected to GPIO 25 # and a temperature sensor named temp2, defined in [DEVICES] section # - GET /bedroom/light => GET /GPIO/25/value, returns the light state # - POST /bedroom/light/0 => POST /GPIO/25/value/0, turn off the light # - POST /bedroom/light/1 => POST /GPIO/25/value/1, turn on the light # - GET /bedroom/temperature => GET /devices/temp2/temperature/c, returns the temperature in celsius #/bedroom/light = /GPIO/25/value #/bedroom/temperature = /devices/temp2/temperature/c #/livingroom/light = /devices/expander0/0 #/livingroom/brightness = /devices/adc/0/float #/livingroom/temperature = /devices/temp0/temperature/c #/weather/temperature = /devices/bmp/temperature/c #/weather/pressure = /devices/bmp/pressure/hpa 【作用】使得REST API看起来更尤优美一些，暂时未详细测试。转自：http://blog.csdn.net/xukai871105/article/details/21644741 1
举报淘帖0 只看该作者相关推荐 • AMBA® 自适应流量配置文件 326 • HarmonyOS/OpenHarmony元服务开发-配置卡片的配置文件 2026 • FreeRTOS配置文件 1230 • 配置文件函数的使用 1973 • HarmonyOS开发-应用配置文件 2359 • Linux的iptables配置文件 1818 • Bluetooth蓝牙配置文件清单【产品专利认证系列】 4581 • 谁有射频rf.h的配置文件方法与说明(tl1d_custom_rf.h配置文件) 2980 • 配置文件（ini文件）保存 28364 • 配置文件 3636