Water Quality DAQ is Going Up

**Update**
The Water Quality DAQ is online.

The Water Quality DAQ chapter is going up over the weekend.  It tracks

• Water Temperature
• pH
• Dissolved Oxygen

Water Quality DAQ.

Some new features, which will be added in an update to the Environment DAQ, are an easy method of grabbing past data and displaying the last time the Arduino synced along with the last time the screen refreshed.

New ability to see past data.

Similar to past projects,

• You can set email and SMS alerts when data moves outside of your defined ranges.  
• The gauges are used for real-time graphing

New External Relays

When we developed the Aquaponics Controller we knew one important design characteristic would be the option of having external relays that are already assembled and enclosed for those uncomfortable with mains level wiring.  And not for nothing, but external relays also have the added benefit of being replaceable.

Relay board ready for wiring and 3D printed enclosure.

This board features a 20A, SPST-NO relay with traces (big traces) to match and a more intuitive 5V control logic than other external relay boards for the Arduino platform.

You can find this kit in our store.

Tutorials:

• main tutorial
• pump controller