Weather HAT + Weather Sensors Kit

by Pimoroni

A meteorologically minded Raspberry Pi HAT designed to make hooking up weather sensors a breeze (or a squall, or a gale).

Weather HAT is a tidy all-in-one solution for hooking up climate and environmental sensors to a Raspberry Pi. It has a bright 1.54" LCD screen and four buttons for inputs. The onboard sensors can measure temperature, humidity, pressure and light. The sturdy RJ11 connectors (remember those?) will let you easily attach wind and rain sensors. It will work with any Raspberry Pi with a 40 pin header (that's most of them except the really old ones).

You could install it outside in a suitable weatherproof enclosure (like a Stevenson screen, a waterproof junction box or even a Tupperware container) and connect to it wirelessly - logging the data locally or piping it into Weather Underground, a MQTT broker or a cloud service like Adafruit IO. Alternatively, you could house your weather Pi inside and run wires to your weather sensors outside - making use of the nice screen to display readouts.

This bundle combines Weather HAT with a full set of wind and rain sensors, at a balmy discounted price!

Features

  • 1.54" IPS LCD screen (240 x 240)
  • Four user-controllable switches
  • BME280 temperature, pressure, humidity sensor (datasheet)
  • LTR-559 light and proximity sensor (datasheet)
  • Nuvoton MS51 microcontroller with inbuilt 12-bit ADC (datasheet)
  • RJ11 connectors for connecting wind and rain sensors
  • HAT-format board
  • Fully-assembled
  • Compatible with all 40-pin header Raspberry Pi models
  • Python library
  • Schematic

Weather HAT + Weather Sensors Kit Includes

  • Weather HAT
  • 2 x 10mm standoffs
  • Wind vane
  • Anemometer (wind speed gauge)
  • Rain gauge
  • Short metal mast (made of two metal poles that slot together)
  • Two plastic arms for mounting the sensors
  • Mounting hardware: jubilee clips, nuts, bolts and cable ties

Raspberry Pi and accessories are sold separately, check out the Extras tab for some options! 

Please note that we can only ship the HAT + Sensors Kit by courier, due to the majestic size of the box.

Software

We've put together a Python library to give you easy access to all Weather HAT's functions, together with straightforward examples to help you learn how to read the sensors and use all the individual parts. There's also a weather station example that combines all the functions into an application.

Resources

  • Our Getting Started tutorial contains a thorough walkthrough of Weather HAT's functionality plus beginner friendly instructions for installing the Python library and running the examples.
  • For a quick video tour around Weather HAT, check out Introducing Weather HAT...
  • ... and you can find out more about Kevin's setup (featuring MQTT, Node-RED, InfluxDB and Grafana) on his YouTube channel.

Notes

  • Want to add on more I2C sensors? No problem, there's an solderless I2C header located on the back of the HAT that you can poke jumper / DuPont wires (or even a Breakout Garden slot) in to.
  • If you'd like to hook up more analog sensors (3.3v max) we've broken out some extra ADC channels on the front of the board, as well as a convenient 3v3 power and ground.
  • We've found two standoffs at the GPIO edge to be sufficient to keep this HAT firmly in place, but if you're attaching it to a full-size Pi and want to add standoffs at every corner you can pick up more here.
  • Dimensions: 65 x 56.5 x 19 mm (L x W x H, including header and connectors) 

6 customer reviews

3 years ago
Nice piece of kit. It's a shame the sensor connectors are on the same side of the screen so it can't be mounted flush against a surface. The code works well, although I'm getting spurious 0.1mm rain quite frequently. A bucket tip is 0.297 mm so it's not bucket tips. I've also hard mounted the rain collector as spurious bucket tips can be a problem if mounted on the flimsy arm. Definitely recommend.
by Anonymous about Weather HAT + Weather Sensors Kit via REVIEWS.io
3 years ago
The first thing that pops up in my mind upon opening the package and examining the contents is, you get what you pay for. I find the anemometer and the wind direction finder (wind vane?) to be rather flimsy and if you add in the rainmeter they make up a nice kit for fair weather monitoring. There does not seem to be any effort made to make this water resistant and I live in Iceland where the rain can come from all directions, even up and I am certain that this won't survive a winter, but it might survive a summer so I'll experiment with that and see how it goes. If we move on from the frailty of the system. I am excited about trying this for the summer it'll be a nice experiment and I expect to learn a lot from it and hope that I will be able to put that experience to good use if I go on to buying sturdier components for a whole year weather station sometime in the near future. This kit is cheap and I think it will be interesting to work with it and learn how to work with the collected data.
by Steinthor about Weather HAT + Weather Sensors Kit via REVIEWS.io
3 years ago
I’m very happy with the kit. Things I’ve discovered with it are it’s possible to remotely mount other sensors using the I2c interface . And for the on board sensors it’s important when choosing an enclosure that all of the sensors can function properly. So whilst a light tight box will shield the temperature sensor from direct sunlight it’s no use for the ambient light sensor. So some hacking will probably be required . But then again that’s what this hobby is all about
by Stephen about Weather HAT + Weather Sensors Kit via REVIEWS.io
3 years ago
This is a great kit. The instructions on the product page were easy to follow and my 12 year old son and I had the weather station up and running in a day. The only extra piece of equipment we needed to buy was a waterproof junction box but you could easily use a Tupperware box. The only weather hat sensor we are not using is the light sensor as the pi and hat are in a dark, water tight box. We will also likely add an external temp probe as the temp sensor on the hat picks up ambient heat from pi (similar to the sense hat). What a great first first project for demonstrating using an ssh client though. We are displaying the data via the adafruit.io dashboard. We are currently all checking it more often than social media !
by Amy about Weather HAT + Weather Sensors Kit via REVIEWS.io

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