# Daily UV Index PyPortal Display ## Overview ![](https://cdn-learn.adafruit.com/assets/assets/000/079/431/medium800/circuitpython_glamor-shot.jpg?1565803450) ## UV Radiation: good and bad UV (which stands for Ultra Violet) is high energy and short wavelength electro-magnetic radiation just past the violet end of the visible spectrum. UV is what gives you vitamin D and a tan... and a sunburn... and, well, skin cancer.  It's a case of a little being ok but too much being pretty bad. Like bacon. ## Keeping your cool You can do some things to reduce your UV exposure while still enjoying the nice weather (and getting that all-important vitamin D). Here are a few: - wear long sleeves, - wear a hat, and - use adequate strength sunscreen. You can get an idea of what to do by checking the UV forecast for your area. That will give you an indication of what the relative strength of the UV radiation will be. In the US, the EPA makes this information available online at [https://enviro.epa.gov/enviro/uv\_hourly?zipcode=10014](https://enviro.epa.gov/enviro/uv_hourly?zipcode=10014). Note that you need to change the zipcode argument to reflect where you are. They also provide that information via an API with multiple response formats, one of which is formatted as JSON data. In this project we'll use that to fetch current UV index data and display it on a PyPortal screen. ## Parts ### Adafruit PyPortal - CircuitPython Powered Internet Display [Adafruit PyPortal - CircuitPython Powered Internet Display](https://www.adafruit.com/product/4116) **PyPortal** , our easy-to-use IoT device that allows you to create all the things for the “Internet of Things” in minutes. Make custom touch screen interface GUIs, all open-source, and Python-powered using tinyJSON / APIs to get news, stock, weather, cat photos,... In Stock [Buy Now](https://www.adafruit.com/product/4116) [Related Guides to the Product](https://learn.adafruit.com/products/4116/guides) ![Front view of a Adafruit PyPortal - CircuitPython Powered Internet Display with a pyportal logo image on the display. ](https://cdn-shop.adafruit.com/640x480/4116-00.jpeg) ### Adafruit PyPortal Desktop Stand Enclosure Kit [Adafruit PyPortal Desktop Stand Enclosure Kit](https://www.adafruit.com/product/4146) PyPortal is our easy-to-use IoT device that allows you to create all the things for the “Internet of Things” in minutes. Create little pocket universes of joy that connect to something good. And now that you've made a cool internet-connected project... In Stock [Buy Now](https://www.adafruit.com/product/4146) [Related Guides to the Product](https://learn.adafruit.com/products/4146/guides) ![Demo Shot of the Assembled Adafruit PyPortal Desktop Stand Enclosure Kit.](https://cdn-shop.adafruit.com/640x480/4146-03.jpg) Choose your USB cable color and length ### USB cable - USB A to Micro-B [USB cable - USB A to Micro-B](https://www.adafruit.com/product/592) This here is your standard A to micro-B USB cable, for USB 1.1 or 2.0. Perfect for connecting a PC to your Metro, Feather, Raspberry Pi or other dev-board or microcontroller Approximately 3 feet / 1 meter long In Stock [Buy Now](https://www.adafruit.com/product/592) [Related Guides to the Product](https://learn.adafruit.com/products/592/guides) ![USB cable - USB A to Micro-B - 3 foot long](https://cdn-shop.adafruit.com/640x480/592-01.jpg) ### USB A/Micro Cable - 2m [USB A/Micro Cable - 2m](https://www.adafruit.com/product/2185) This is your standard USB A-Plug to Micro-USB cable. It's 2 meters long so you'll have plenty of cord to work with for those longer extensions. In Stock [Buy Now](https://www.adafruit.com/product/2185) [Related Guides to the Product](https://learn.adafruit.com/products/2185/guides) ![USB Cable with Type A and Micro B ends](https://cdn-shop.adafruit.com/640x480/2185-00.jpg) - [Next Page](https://learn.adafruit.com/pyportal-uv-index/setting-up-circuitpython.md) ## Featured Products ### Adafruit PyPortal - CircuitPython Powered Internet Display [Adafruit PyPortal - CircuitPython Powered Internet Display](https://www.adafruit.com/product/4116) **PyPortal** , our easy-to-use IoT device that allows you to create all the things for the “Internet of Things” in minutes. Make custom touch screen interface GUIs, all open-source, and Python-powered using tinyJSON / APIs to get news, stock, weather, cat photos,... In Stock [Buy Now](https://www.adafruit.com/product/4116) [Related Guides to the Product](https://learn.adafruit.com/products/4116/guides) ### Adafruit PyPortal Desktop Stand Enclosure Kit [Adafruit PyPortal Desktop Stand Enclosure Kit](https://www.adafruit.com/product/4146) PyPortal is our easy-to-use IoT device that allows you to create all the things for the “Internet of Things” in minutes. Create little pocket universes of joy that connect to something good. And now that you've made a cool internet-connected project... In Stock [Buy Now](https://www.adafruit.com/product/4146) [Related Guides to the Product](https://learn.adafruit.com/products/4146/guides) ### USB cable - USB A to Micro-B [USB cable - USB A to Micro-B](https://www.adafruit.com/product/592) This here is your standard A to micro-B USB cable, for USB 1.1 or 2.0. Perfect for connecting a PC to your Metro, Feather, Raspberry Pi or other dev-board or microcontroller Approximately 3 feet / 1 meter long In Stock [Buy Now](https://www.adafruit.com/product/592) [Related Guides to the Product](https://learn.adafruit.com/products/592/guides) ### USB A/Micro Cable - 2m [USB A/Micro Cable - 2m](https://www.adafruit.com/product/2185) This is your standard USB A-Plug to Micro-USB cable. It's 2 meters long so you'll have plenty of cord to work with for those longer extensions. In Stock [Buy Now](https://www.adafruit.com/product/2185) [Related Guides to the Product](https://learn.adafruit.com/products/2185/guides) ### Pink and Purple Braided USB A to Micro B Cable - 2 meter long [Pink and Purple Braided USB A to Micro B Cable - 2 meter long](https://www.adafruit.com/product/4148) This cable is super-fashionable with a woven pink and purple Blinka-like pattern! First let's talk about the cover and over-molding. We got these in custom colors, and if you _have_ to have visible cables, then you might as well have the nicest fabric-bound... No Longer Stocked [Buy Now](https://www.adafruit.com/product/4148) [Related Guides to the Product](https://learn.adafruit.com/products/4148/guides) ## Related Guides - [Adafruit PyPortal - IoT for CircuitPython](https://learn.adafruit.com/adafruit-pyportal.md) - [PyPortal Astronauts in Space](https://learn.adafruit.com/pyportal-astronauts-in-space.md) - [¡Bienvenido a CircuitPython!](https://learn.adafruit.com/bienvenido-a-circuitpython-2.md) - [PyPortal Weekly Countdown Clock](https://learn.adafruit.com/pyportal-countdown-clock.md) - [PyPortal Event Countdown Clock](https://learn.adafruit.com/pyportal-event-countdown-clock.md) - [Using LittlevGL with Adafruit Displays](https://learn.adafruit.com/using-littlevgl-with-adafruit-displays.md) - [Where's My Friend? A Location-Aware Display with PyPortal and ItsASnap](https://learn.adafruit.com/where-s-my-friend-a-location-display-frame-with-pyportal.md) - [PyPortal MQTT Sensor Node/Control Pad for Home Assistant](https://learn.adafruit.com/pyportal-mqtt-sensor-node-control-pad-home-assistant.md) - [PyPortal YouTube Views and Subscribers Display](https://learn.adafruit.com/pyportal-youtube-views-and-subscribers-display.md) - [A Floppy Thumb Drive with a Color File Icon Display](https://learn.adafruit.com/a-floppy-thumb-drive-with-a-color-file-icon-display.md) - [PyPortal LIFX Lighting Controller ](https://learn.adafruit.com/pyportal-lifx-lighting-controller.md) - [IoT Power Outlet with CircuitPython and Adafruit IO](https://learn.adafruit.com/adafruit-io-a-c-power-relay.md) - [PyPortal Adafruit Quote Book](https://learn.adafruit.com/pyportal-adafruit-quote-board.md) - [PyPortal Cutefuzz Image Viewer](https://learn.adafruit.com/pyportal-cutefuzz-image-viewer.md) - [Cleveland Museum of Art PyPortal Frame](https://learn.adafruit.com/cleveland-museum-of-art-pyportal-frame.md) - [PyPortal New New New Product Viewer](https://learn.adafruit.com/pyportal-new-new-new-product-viewer.md)