sensornetThis project covered the hardware section of this challenge. There are 2 Arduino based projects which measures temperature and humidity then upload the data it to Xivery. Also both units have a nRF24l01 transceiver and a bluetooth module so able to pass data between them and one has 6 one-wire DB1820b Dallas temperature sensors one of which is waterproof. The Sensors are mounted on strip-board and are joined together using cat5 network cable.
This project is solving the Cool it! challenge. Description
The aim of the project is provide data for persons attending the space apps challenge and model the data in the same way as thermal heat image. So you will be able to find the hot and cold areas of the room being measured.
Cool IT - Sensor Net all data is public; The Arduino Duemilanova @ Build Brighton (Brighton's Hackerspace) data has a read public API Key z6TXnz9Ff4XadgetnsApPPwgLyjFg9CiDYUh2Z2ppzEAu6LK
SensorNET was the hub part of the project, temperature and humidity (A DHT22 RH03) mounted on the board gave local readings and the 6 Dallas one-wire sensors mounted on strip-board and attached in rope formation which could be spread out to about 10 meters from the base. Also included in the set-up was a waterproof sensor which could be placed in a pond so able to monitor the temperature. The sensors were placed outside my window and lowered down to ground level; I'm about 2 floors up in a house converted into flats, the remaining sensors where placed high and low and the waterproof one was placed inside my fridge. This gave a good range of temperatures shown on the 2 digit 7 segment display.
Second project was a DHT22 sensor mounted on a breadboard which measured the temperature and humidity which uploaded data to Xively where it can be viewed and the service uses RESTapi so others can pull data from the web page. The nrf24L01 transceivers where mounted upon custom made breakout boards and the bluetooth module upon the sensor net provided data transmission to a connected phone and viewed using a terminal App.
The sensor net hub project could be made in a kit using PCB's mounted into a box and wall mounted. Also the Dallas sensors could become mounted together with a DHT22, a processor and have a wireless link back to the hub.
License: GNU Affero General Public License 3.0 (AGPL-3.0)"
Source Code/Project URL: https://github.com/OricTosh/SensorNET
Pictures Showing the Hardware - https://dl.dropboxusercontent.com/u/15542210/Cool_IT/2014-04-07%2017.30.12.jpg
Pictures Showing the Hardware - https://dl.dropboxusercontent.com/u/15542210/Cool_IT/2014-04-12%2000.19.35.jpg
Pictures showing the Hardware - https://dl.dropboxusercontent.com/u/15542210/Cool_IT/2014-04-12%2000.19.10.jpg
Data Feed URL - https://xively.com/feeds/211109309
API END POINT - https://api.xively.com/v2/feeds/211109309
Data Feed URL - https://xively.com/feeds/1166752800
API END POINT - https://api.xively.com/v2/feeds/1166752800
Picture showing the hadware - https://dl.dropboxusercontent.com/u/15542210/Cool_IT/2014-04-13%2020.40.52.jpg
Video showing SensorNET working - http://youtu.be/7dRZRoX5VBQ