SparkFun weather:bit

The SparkFun weather:bit is a fully loaded "carrier" board for the micro:bit that, when combined with the micro:bit, provides you with a fully functional weather station. With the weather:bit you will have access to barometric pressure, relative humidity and temperature readings. There are also connections on this carrier board to optional sensors such as wind speed, direction, rain gauge and soil readings! The micro:bit has a lot of features and a lot of potential for weather data collection.

The weather:bit connects to the micro:bit via an edge connector at the top of the board, making setup easy. This creates a handy way to swap out micro:bits for programming, while still providing reliable connections to all of the different pins on the micro:bit. We have also included serial and I2C ports on the weather:bit for optimized connectivity if you so choose.


The micro:bit is a pocket-sized computer that lets you get creative with digital technology. Between the micro:bit and our shield-like bit boards you can do almost anything while coding, customizing and controlling your micro:bit from almost anywhere! You can use your micro:bit for all sorts of unique creations, from robots to musical instruments and more. At half the size of a credit card, this versatile board has vast potential!


Note: The SparkFun weather:bit does NOT include a micro:bit board. The micro:bit will need to be purchased separately.

  • Onboard temperature, humidity, and pressure sensor
  • Connectors for soil moisture and soil temperature
  • Connectors for wind speed, direction and rainfall gauges
  • Edge connector for easy micro:bit integration

SparkFun weather:bit Product Help and Resources

Getting Started with the micro:bit

September 2, 2021

The BBC micro:bit is a compact, powerful programming tool that requires no software installation. Read on to learn how to use it YOUR way!

micro:climate Kit Experiment Guide

July 21, 2017

A weather station kit that is built on top of the inexpensive, easy-to-use micro:bit and Microsoft MakeCode.

Weather Meter Hookup Guide

July 20, 2017

How to assemble your very own weather meter!

Wireless Remote Weather Station with micro:bit

May 11, 2020

Monitor the weather without being exposed to it through wireless communication between two micro:bits using the radio blocks! This is useful if your weather station is installed in a location that is difficult to retrieve data from the OpenLog. We will also explore a few different ways to send and receive data.

Weather Bit Package and Variables Not Updating

When the board was first released, there was an issue with the pxt-weather-bit package and it has since been resolved in the latest version.

If you still have issues with the micro:bit reading the BME280 values, try

  • re-adding the Weatherbit package
  • replacing the weatherbit's code blocks in MakeCode

If you are using example code from the micro:climate kit, it has been updated to reflect the latest packaged version.


Core Skill: DIY

Whether it's for assembling a kit, hacking an enclosure, or creating your own parts; the DIY skill is all about knowing how to use tools and the techniques associated with them.

1 DIY

Skill Level: Noob - Basic assembly is required. You may need to provide your own basic tools like a screwdriver, hammer or scissors. Power tools or custom parts are not required. Instructions will be included and easy to follow. Sewing may be required, but only with included patterns.
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Core Skill: Programming

If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.

2 Programming

Skill Level: Rookie - You will need a better fundamental understand of what code is, and how it works. You will be using beginner-level software and development tools like Arduino. You will be dealing directly with code, but numerous examples and libraries are available. Sensors or shields will communicate with serial or TTL.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

2 Electrical Prototyping

Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
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