Common Components
Most SparkFun MicroMod Carrier Boards will have some common components and all MicroMod Carrier Boards
will have the keyed M.2 MicroMod Connector to plug your processor into. The photo and list below outline some of
the components you can expect on the Weather Carrier Board and most other SparkFun MicroMod Carrier
Boards.
M.2 MicroMod Connector
- This special keyed M.2 connector lets you install your MicroMod Processor of
choice on your Weather Carrier Board.
USB-C Connector
- Connect to your computer to program your processor and also can provide power to
your MicroMod system.
3.3V Regulator
- Provides a regulated
3.3V
and sources up to
1A
.
Qwiic Connector
- The standard Qwiic connector so you can add other Qwiic devices to your MicroMod
system.
Boot/Reset Buttons
- Push buttons to enter boot mode on processors and to reset your MicroMod circuit.
RTC Backup Battery & Charge Circuit
-
1mAh
backup battery for the Real-Time Clocks on MicroMod
Processors that have a built-in RTC. Receives charge voltage from
3.3V
.
microSD Slot
- Insert a microSD card formatted to FAT32 here to log your weather data.
Weather Station Sensors and External Sensor Connections
As we mentioned in the introduction, the board comes with a BME280 Temperature, Pressure and Humidity
Sensor, a VEML6075 UV Light Sensor and a AS3935 Lightning Detector. Along with those on board sensors there
is a three pin latch terminal for a soil moisture sensor as well as a pair of RJ11 jacks for connecting wind and rain
meters.
The three on board sensors paired with the external sensors allows for a powerful and customizable weather
tracking tool.
BME280 Temperature, Pressure and Humidity Sensor
The BME280 Atmospheric Sensor from Bosch is the heavy lifter of the Weather Carrier Board. The BME280 is a
highly-accurate, digital environmental sensor that measures ambient temperature, relative humidity and barometric
pressure.
