The AS3935 Lightning Detector is connected to the primary SPI bus and Chip Select (CS) for the AS3935 is tied to
G1/Bus1 (MicroMod pad 42).
For in-depth information about the sensor, refer to the AS3935 Datasheet or our Hookup Guide for the SparkFun
Lightning Detector Breakout.
Soil Moisture Sensor Latch Terminal
The three-pin latch terminal makes it easy to connect a Soil Moisture Sensor to your Weather Carrier Board. The
soil moisture sensor is a handy addition to the Weather Carrier Board if you are using it in something like a
greenhouse environment to keep an eye on your soil and, with some slick coding, you could even turn an irrigation
system on or off depending on the sensor's measurements.
The Soil Moisture Sensor has two large coated pads that act as prongs for what is essentially a large variable
resistor. The sensor takes advantage of a simple concept of moist soil being more conductive than dry soil so as
more water is added to the soil, the resistance of the circuit drops and the SIG output increases.
Power (
3.3V
) for the sensor is provided by G0 (MicroMod pad 40) allowing you to turn it on and off easily
(continuous power is not recommended for the soil moisture sensor) and the Signal output is tied to A0 (MicroMod
pad 34).
If you are looking for some inspiration for an automated watering project, check out our Product Showcase Video
and the Soil Moisture Sensor Hookup Guide.
Wind and Rain RJ11 Connectors
