Wireless temperature measure system

The main components are atmega328p micro cpu, RFM12b radio modules and DS18S20 for temperature measurement.

Temperature sender unit

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Sender code – github

Senders can power up using USB power converters or pattery pack.
Display unit gets power from any USB.

 

Display unit owns LCD plug (MCP23008) between atmega328p and LDC.

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Now I thought it might by cool to collect all sensors data.

So I build network module who collects the same data that display module gets but sends it to my zabbix server.

Network module is built using ENC28J60

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So now I can see cool graphs

Screen Shot 2014-08-08 at 14.11.39