Tag Archives: weather

Raspberry Pi ‘WeatherClock’ shows you the hour’s forecast

Post Syndicated from Ashley Whittaker original https://www.raspberrypi.org/blog/raspberry-pi-weatherclock-shows-you-the-hours-forecast/

Meet Eli’s WeatherClock, a digital–analogue timepiece that displays the weather at each hour of the day as well as the time. Here’s an example: every day at 3pm, instead of the hour hand just pointing to a number three on the clock’s face, it also points to a visual representation of what the weather is doing. Obviously, Eli’s WeatherClock still tells the time using the standard positions of the hour and minute hands, but it does two jobs in one, and it looks much more interesting than a regular clock.

We agree, she is lovely (sound on for the video will make that make sense)

Detailed forecast

You can also press on every hour position of the watch’s touchscreen display to see more detailed meteorological information, such as temperature and the likelihood of rain. Then once you’ve gotten all the detail you need, you return to the simple analogue resting face to by pressing the centre of the touchscreen.

Weather details view of the weatherclock digital-analogue clock project.
weatherClock can give you more detail if you want it to

Under the hood

The device uses the openWeatherMap API to fetch weather data for your location. It’s a simple build powered by Raspberry Pi Zero W with a Pimoroni 4″ HyperPixel Hi-Res Display providing the user interface. And its slim, pocket-sized design means you can take it with you on your travels.

Inside view of the weatherclock digital-analogue clock project.
Tiny Raspberry Pi Zero W and a Pimoroni 4″ touchscreen fit inside perfectly

We found this creation on The Digital Vagrant‘s YouTube channel. A friend named Eli gave them the idea so the maker named the project after him. The Digital Vagrant liked the idea of being able to quickly check the weather before leaving the house — no need to check a computer or get your phone out of your bag.

Side view of the weatherclock digital-analogue clock project.
Its super slim design makes WeatherClock portable

Want to make your own WeatherClock? The lovely maker has deposited everything you need on GitHub.

The post Raspberry Pi ‘WeatherClock’ shows you the hour’s forecast appeared first on Raspberry Pi.

Raspberry Pi powers weather station in Nepal

Post Syndicated from Ashley Whittaker original https://www.raspberrypi.org/blog/raspberry-pi-powers-weather-station-in-nepal/

This Raspberry Pi-powered weather station is a vital tool for Nepalese farmers, who work in remote, changeable conditions, and rely heavily on monitoring the environment.

nepal weather station being built
All the parts had to be low-cost and easy to maintain

It’s hard to forecast the weather in Nepal. Conditions can vary a lot within a small area because the country is so mountainous. Plus, there is no national weather service. This makes life even harder for farmers working in remote villages. There were a few essentials elements that any solution had to have:

  • Low-cost
  • Reliable and easy to maintain
  • Solar-powered
  • Able to run off readily available motorcycle batteries when the solar panels don’t get enough sun
nepal weather station on the roof
A simple plastic food container keeps the hardware safe and dry

How was it made?

Prabesh Sapkota and Binod Kandel from the Robotics Association of Nepal led the team that built the solar-powered weather station with battery back-up. They were able to complete the project affordably using Raspberry Pi. Prabesh and his team wrote the software and created a display dashboard in Raspberry Pi OS Jessie.

nepal weather station hardware insides
The core components put together as a prototype with a breadboard to check everything worked

One of the challenges they faced was being able to power the Raspberry Pi and Arduino reliably, and that’s where the BitScope Blade Uno came in to play (more on that later).

The weather station sensors measure temperature, barometric pressure, humidity, wind direction and wind speed, and all of the sensors are connected to the Arduino, which records the data and sends it to the Raspberry Pi to display on the dashboard.

Full kit list

  • Raspberry Pi 3 Model B
  • Raspberry Pi 7″ Touch Display
  • Arduino Uno
  • BitScope Blade Uno (directly powers Raspberry Pi and Arduino)
  • GPS module (NEO-6M-0-001)
  • Pressure sensor (BMP180)
  • Humidity sensor (DHT11)
  • 12V Lead-acid battery
  • 20 Watt solar panel
  • Hall effect sensor (used together with magnets in an anemometer to measure wind speed)
  • 8 reed switches (used with a wind vane that has an attached magnet to sense wind direction)
nepal weather station in action
Testing out the weather station on the roof

The team is working with an Australian sponsor to run workshops on basic electronics, with the intention of helping people build more of these affordable weather stations for rural schools and remote areas.

What is Bitscope Blade?

This weather station is an inspiring application of BitScope Blade, available to buy from element14. BitScope developed these power and mounting solutions for people working in challenging conditions, making them perfect for remote areas of Nepal without access to reliable power. They’re designed for industrial deployment as well as being suitable for off-grid hobbyist and educational applications.

You can choose from three variants, according to how many Raspberry Pi computers you need to support: BitScope Blade Uno for one Raspberry Pi and optional HAT, useful for makers and students; Duo for a pair of Raspberry Pis, ideal for building a standalone desktop and server system; and Quattro for four Raspberry Pis in applications such as compute clusters, private clouds or build farms.

Read more on the BitScope blog.

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