Cheap Graphite Sensors

Getting physical data into Graphite

Hardware

Arudino + Ethernet Option

Each Sensor Cluster:

• $45 Ethernet shield - http://www.sparkfun.com/products/9026
• $30 Arduino - http://www.sparkfun.com/products/11021

Base station:

• Plain ole computer

Attiny + WRL-10535 Option

Each Sensor Cluster:

• $4 Wireless transmitter - http://www.sparkfun.com/products/10535
• $3 microcontroller - http://www.sparkfun.com/products/11232
• Library for using them http://www.pjrc.com/teensy/td_libs_VirtualWire.html

Base station:

• $5 Wireless receiver - http://www.sparkfun.com/products/10533
• $30 Arduino ? - http://www.sparkfun.com/products/11021
• Library for using them http://www.pjrc.com/teensy/td_libs_VirtualWire.html

Openwrt Router Option

• $20 TP-Link TL-WR703N
• GPIO + USB Expansion Board - http://www.kean.com.au/oshw/WR703N/