|TP-401 Gas SensorSemi-conductor||RFduino||Cordova App|
|SnO2(Tin dioxide)Resistance decrease in fresh clean air.They are used in air quality control equipments for buildings/offices, are suitable for detecting of NH3,NOx, SOx, ,etc.Cost efficient.||Arduino+ Bluetooth + Temperature sensor||Nodejs + MongoDB to store data||PhoneGap Bluetooth sync transfer data|
I will only cover physical and mobile parts.
1. Info of RFDuino: = Arduino + Bluetooth module + temperature sensor
Install RFDuino on your computer: https://github.com/RFduino/RFduino/blob/master/REA...
2. 3 ways to build the circuit:
a. Simply connect the sensor to A5 on RFduino.
b. In order to make your own board. Break the sensor !
Follow the Schematic and make something like this:
Note: because there is an amplifier on the original board of sensor, the value you read after break from the original sensor may be different. You need to remap, test and find the range of it. Or use exactly the same modules on the board.
c. Make board !
I bought the surface mount RFDuino in order to make the board:
OK! Finally Code:https://github.com/streamna/networkprojects/blob/m...
Install PhoneGap: http://phonegap.com/install/
Add the plugin: https://github.com/don/cordova-plugin-rfduino
It hasn't been finished. But works with basic functions
4. Fabrication and put everything together
Laser cut the shape, 3D print the nail.