Arduino Air Pump

Using Arduino Project Guidance
8

Si:
If you don't want to get involved in soldering then buy a relay shield with screw terminals and have that turn a compressor on for a pre-set period of time.
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Some examples here:=relay&s[title]=Y&s[short_desc]=Y&s[full_desc]=Y&s[sku]=Y&s[match]=all&s[cid]=0] http://arduino-direct.com/sunshop/index.php?l=search_list&s[search]=relay&s[title]=Y&s[short_desc]=Y&s[full_desc]=Y&s[sku]=Y&s[match]=all&s[cid]=0