A simple adjustable comparator circuit using a LM393 IC to detect water continuity in soil. Designed to interface to a Arduino or other micro controllers. Freeware available through www.arduino.cc.en
Input: 2 Pin header for connection to sensor board
Outputs: TTL Compatible Digital
Feed through of Analog Input
4 Pin .1in Header pins for Power & Outputs
LEDs for 5V Power and Output status indication.
Comparator Board: 30mm X 16mm
Sensor Board: 55mm X 20mm
Set includes Both Boards & 6in. Interconnect jumpers. WT: .02
WARNING: This product can expose you to chemicals including Nickel which is known to the State of California to cause cancer and which is known to the State of California to cause birth defects and/or other reproductive harm. For more information, go to www.P65Warnings.ca.gov
Click to see Why is this here?
As of August 2018 the State of California has changed the requirements of the “Prop 65” law. We now must list on our website any possible chemicals the can cause cancer, birth defects or reproductive problem.
As an example:
ABS plastic contains styrene
PVC wire insulation can contain Di(2-ethylhexyl)phthalate (DEHP)
electrolytic capacitors can contain Ethylene glycol
Brass can contain Lead
flame retardant pc boards can contain Tetrabromobisphenol A (TBBPA)
Aluminum alloys can contain Chromium
To put it simply we are a small company and do not have the resources to test every single part, so we list every thing as hazardous. Please recycle all electronic parts responsibly and under no circumstance eat, drink or smoke these parts and wash your hands after touching!