It has a REST server skeleton where you can configure and read multiple sensors connected in your Arduino.
The platform is based in [Arduino Ethernet board]{http://arduino.cc/en/Main/ArduinoBoardEthernet} and the TinkerKit shield.
- Download the files and uncompress
- Copy the content of the directory "UserGUI/sdFiles" inside the SD card that you will use for the Arduino (The SD must been formated as FAT16 previously, the factory format usually works).
- Introduce the SD card inside the Arduino board SD slot.
- Open using the Arduino IDE the file "ArduinoFirmware.ino" which is located under the directory "ArduinoFirmware".
- Compile and upload the code to the Arduino MCU.
- Connect the Arduino board to your Ethernet LAN (192.168.10.0 network by default). This network must provide internet connection to the board. If not it will not be able to get the Google's server time for the datalogger.
- Acccess to Arduino using a web browser. By default: 'http://192.168.10.2' (port 80).
- Hack and Enjoy ;)
| Char | Description |
|---|---|
| ixy | Input port |
| oxy | Output Port |
| ay | Network address |
| ty | Data logger sampling time |
| py | TCP Maximum Packet Size |
| ny | Device name |
Where x is the number of ports and y the parameter. The response of these requests is the current configuration after apply the changes in JSON format.
Each connector of the TinkerKit shield is considered as one port. In exception of the output connectors O0 and O1 which are reserved for SPI bus. These ports can be configured by setting a letter as parameter in order to identify the type of port.| Option | Description |
|---|---|
| t | Temperature |
| p | Potentiometer |
| l | Light (LDR) |
| b | Logic (Binary) |
| r | Raw |
| e | Not connected |
There is an example of an URL which sets the input number 2 to temperature. '''url http://192.168.10.2/set/i2p '''
Due the fact that Arduino's microcontroller has limited computing resources, it has a list of predefined IP addresses and they are selected using the correct request.| Option | Description |
|---|---|
| 1 | 192.168.10.130/26:8080 |
| 2 | 10.0.1.2/24:80 |
| 3 | 10.0.1.129/26:8080 |
| 4 | 192.168.1.2/24:80 |
| Other | 192.168.10.2/24:80 |
There is an example of an URL which sets the network address to ''10.0.1.129'' and the netmask to ''255.255.255.192'' (26 bit). '''url http://192.168.10.2/set/a3 ''' The new IP address will be applied after reset the board.
The sata logger sampling time has been also predefinied using some options in order to avoid use extra computing resources due parsing number in the URL.| Option | Description |
|---|---|
| 1 | 5 seconds |
| 2 | 10 seconds |
| 3 | 1 minute |
| 4 | 5 minutes |
| 5 | 10 minutes |
| Other | 1 second |
There is an example of an URL which sets the sampling time to 10 minutes: '''url http://192.168.10.2/set/t5 ''' The new sampling time will be applied after the next sample.
As said previously each device can be named with a name with lesss than 16 characters. It is only admitted letters, numbers and '_' which acts as an space in the Arduino's memory.There is an example of an URL which sets the device name as ''Hello World'': '''url http://192.168.10.2/set/nHello_World ''' The new device name will be applied instantly.
The sensor platform is already running. The performance has been improved as much as possible.
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