# PyPortal Weekly Countdown Clock ## Overview ![](https://cdn-learn.adafruit.com/assets/assets/000/072/364/medium800/internet_of_things___iot_IMG_4392_2k.jpg?1551824851) Have a favorite recurring weekly event you don't want to miss? Perhaps it's your favorite TV show, or livestream? The PyPortal Weekly Countdown Clock has got you covered! Build your own PyPortal Weekly Countdown Clock and then customize it for the event of your choice. All coded in CircuitPython, it gets the precise time from the internet using built-in WiFi, then draws the display with the days, hours, and minutes until the event. Then, you'll get a new image displayed during the event, such as an "On Air" sign. At the completion of the event, the timer starts again, counting down again for the next week. ## 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) ### 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 Out of 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) ## Additional Tools & Materials You may want to create the optional desk stand for your PyPortal Weekly Countdown Clock. For this you'll need: - [3D printer](https://www.adafruit.com/product/2673) - [Filament](https://www.adafruit.com/product/3731) - [PyPortal Stand model file](https://www.thingiverse.com/thing:3457290) - [M3 standoffs and screws](https://www.adafruit.com/product/3816) If you don't have access to a 3D printer you can optionally use an online service such as 3D Hubs to have it printed for you on demand. ### Circuit Playground Bolt-On Kit [Circuit Playground Bolt-On Kit](https://www.adafruit.com/product/3816) You have a [Circuit Playground Express](https://www.adafruit.com/product/3333), but you need to mount it to your charming cardboard robot friend, eh? Not so easy if you don't have a set of standoffs!  In this kit comes: - 6 x M3 12mm brass hexagonal... In Stock [Buy Now](https://www.adafruit.com/product/3816) [Related Guides to the Product](https://learn.adafruit.com/products/3816/guides) ![Angled shot of 6 stand offs from a Circuit Playground Bolt-On Kit.](https://cdn-shop.adafruit.com/640x480/3816-04.jpg) ![](https://cdn-learn.adafruit.com/assets/assets/000/072/271/medium800/internet_of_things___iot_pyportalModel.jpg?1551804325) # PyPortal Weekly Countdown Clock ## Install CircuitPython [CircuitPython](https://github.com/adafruit/circuitpython) is a derivative of [MicroPython](https://micropython.org) designed to simplify experimentation and education on low-cost microcontrollers. It makes it easier than ever to get prototyping by requiring no upfront desktop software downloads. Simply copy and edit files on the **CIRCUITPY**  "flash" drive to iterate. The following instructions will show you how to install CircuitPython. If you've already installed CircuitPython but are looking to update it or reinstall it, the same steps work for that as well! ## Set up CircuitPython Quick Start! Follow this quick step-by-step for super-fast Python power :) [Download the latest version of CircuitPython for the PyPortal via CircuitPython.org](https://circuitpython.org/board/pyportal/) [Download the latest version of CircuitPython for the PyPortal Pynt via CircuitPython.org](https://circuitpython.org/board/pyportal_pynt/) **Click the link above to download the latest version of CircuitPython for the PyPortal.** Download and save it to your desktop (or wherever is handy). ![circuitpython_pyportal-uf2.png](https://cdn-learn.adafruit.com/assets/assets/000/073/615/medium640/circuitpython_pyportal-uf2.png?1553610968) Plug your PyPortal into your computer using a known-good USB cable. **A lot of people end up using charge-only USB cables and it is very frustrating! So make sure you have a USB cable you know is good for data sync.** Double-click the **Reset** button on the top in the middle (magenta arrow) on your board, and you will see the NeoPixel RGB LED (green arrow) turn green. If it turns red, check the USB cable, try another USB port, etc.  **Note:** The little red LED next to the USB connector will pulse red. That's ok! If double-clicking doesn't work the first time, try again. Sometimes it can take a few tries to get the rhythm right! ![circuitpython_PyPortalResetNeoPIxel.jpg](https://cdn-learn.adafruit.com/assets/assets/000/071/993/medium640/circuitpython_PyPortalResetNeoPIxel.jpg?1551213425) You will see a new disk drive appear called **PORTALBOOT**. Drag the **adafruit-circuitpython-pyportal-\.uf2** file to **PORTALBOOT.** ![circuitpython_PyPortal_PORTALBOOT.png](https://cdn-learn.adafruit.com/assets/assets/000/072/029/medium640/circuitpython_PyPortal_PORTALBOOT.png?1551287972) ![circuitpython_PyPortal_Drag_UF2.png](https://cdn-learn.adafruit.com/assets/assets/000/072/030/medium640/circuitpython_PyPortal_Drag_UF2.png?1551287983) The LED will flash. Then, the **PORTALBOOT** drive will disappear and a new disk drive called **CIRCUITPY** will appear. If you haven't added any code to your board, the only file that will be present is **boot\_out.txt**. This is absolutely normal! It's time for you to add your **code.py** and get started! That's it, you're done! :) ![circuitpython_PyPortalCIRCUITPY.png](https://cdn-learn.adafruit.com/assets/assets/000/071/995/medium640/circuitpython_PyPortalCIRCUITPY.png?1551213875) ## PyPortal Default Files Click below to download a zip of the files that shipped on the PyPortal or PyPortal Pynt. [PyPortal Default Files](https://github.com/adafruit/circuitpython-default-files/tree/main/boards/pyportal/4.x) [PyPortal Pynt Default Files](https://github.com/adafruit/circuitpython-default-files/tree/main/boards/pyportal_pynt/5.x) # PyPortal Weekly Countdown Clock ## PyPortal CircuitPython Setup To use all the amazing features of your PyPortal with CircuitPython, you must first install a number of libraries. This page covers that process. # Adafruit CircuitPython Bundle Download the Adafruit CircuitPython Library Bundle. You can find the latest release here: [Latest Adafruit CircuitPython Library Bundle](https://circuitpython.org/libraries) Download the **adafruit-circuitpython-bundle-\*.x-mpy-\*.zip** bundle zip file where **\*.x MATCHES THE VERSION OF CIRCUITPYTHON YOU INSTALLED** , and unzip a folder of the same name. Inside you'll find a **lib** folder. You have two options: - You can add the **lib** folder to your **CIRCUITPY** drive. This will ensure you have _all the drivers_. But it will take a bunch of space on the 8 MB disk - Add each library as you need it, this will reduce the space usage but you'll need to put in a little more effort. At a minimum we recommend the following libraries, in fact we more than recommend. They're basically required. So grab them and install them into **CIRCUITPY/lib** now! - **adafruit\_esp32spi** - This is the library that gives you internet access via the ESP32 using (you guessed it!) SPI transport. You need this for anything Internet - **adafruit\_requests** - This library allows us to perform HTTP requests and get responses back from servers. GET/POST/PUT/PATCH - they're all in here! - adafruit\_connection\_manager - used by adafruit\_requests. - **adafruit\_pyportal** - This is our friendly wrapper library that does a lot of our projects, displays graphics and text, fetches data from the internet. Nearly all of our projects depend on it! - **adafruit\_portalbase**  - This library is the base library that adafruit\_pyportal library is built on top of. - **adafruit\_touchscreen** - a library for reading touches from the resistive touchscreen. Handles all the analog noodling, rotation and calibration for you. - **adafruit\_io** - this library helps connect the PyPortal to our free datalogging and viewing service - **adafruit\_imageload** - an image display helper, required for any graphics! - **adafruit\_display\_text** - not surprisingly, it displays text on the screen - **adafruit\_bitmap\_font** - we have fancy font support, and its easy to make new fonts. This library reads and parses font files. - **adafruit\_slideshow** - for making image slideshows - handy for quick display of graphics and sound - **neopixel** - for controlling the onboard neopixel - **adafruit\_adt7410** - library to read the temperature from the on-board Analog Devices ADT7410 precision temperature sensor (not necessary for Titano or Pynt) - **adafruit\_bus\_device** - low level support for I2C/SPI - **adafruit\_fakerequests**  - This library allows you to create fake HTTP requests by using local files. # PyPortal Weekly Countdown Clock ## Create Your settings.toml File CircuitPython works with WiFi-capable boards to enable you to make projects that have network connectivity. This means working with various passwords and API keys. As of [CircuitPython 8](https://circuitpython.org/downloads), there is support for a **settings.toml** file. This is a file that is stored on your **CIRCUITPY** drive, that contains all of your secret network information, such as your SSID, SSID password and any API keys for IoT services. It is designed to separate your sensitive information from your **code.py** file so you are able to share your code without sharing your credentials. CircuitPython previously used a **secrets.py** file for this purpose. The **settings.toml** file is quite similar. Warning: Your **settings.toml** file should be stored in the main directory of your **CIRCUITPY** drive. It should not be in a folder. ## CircuitPython **settings.toml** File This section will provide a couple of examples of what your **settings.toml** file should look like, specifically for CircuitPython WiFi projects in general. The most minimal **settings.toml** file must contain your WiFi SSID and password, as that is the minimum required to connect to WiFi. Copy this example, paste it into your **settings.toml** , and update: - `your_wifi_ssid` - `your_wifi_password` ```auto CIRCUITPY_WIFI_SSID = "your_wifi_ssid" CIRCUITPY_WIFI_PASSWORD = "your_wifi_password" ``` Many CircuitPython network-connected projects on the Adafruit Learn System involve using Adafruit IO. For these projects, you must _also_ include your Adafruit IO username and key. Copy the following example, paste it into your settings.toml file, and update: - `your_wifi_ssid` - `your_wifi_password` - `your_aio_username` - `your_aio_key` ```auto CIRCUITPY_WIFI_SSID = "your_wifi_ssid" CIRCUITPY_WIFI_PASSWORD = "your_wifi_password" ADAFRUIT_AIO_USERNAME = "your_aio_username" ADAFRUIT_AIO_KEY = "your_aio_key" ``` Some projects use different variable names for the entries in the **settings.toml** file. For example, a project might use `ADAFRUIT_AIO_ID` in the place of `ADAFRUIT_AIO_USERNAME`. **If you run into connectivity issues, one of the first things to check is that the names in the settings.toml file match the names in the code.** Warning: Not every project uses the same variable name for each entry in the **settings.toml** file! Always verify it matches the code. ## **settings.toml** File Tips Here is an example **settings.toml** file. ```auto # Comments are supported CIRCUITPY_WIFI_SSID = "guest wifi" CIRCUITPY_WIFI_PASSWORD = "guessable" CIRCUITPY_WEB_API_PORT = 80 CIRCUITPY_WEB_API_PASSWORD = "passw0rd" test_variable = "this is a test" thumbs_up = "\U0001f44d" ``` In a **settings.toml** file, it's important to keep these factors in mind: - Strings are wrapped in double quotes; ex: `"your-string-here"` - Integers are _ **not** _ quoted and may be written in decimal with optional sign (`+1`, `-1`, `1000`) or hexadecimal (`0xabcd`). - Floats (decimal numbers), octal (`0o567`) and binary (`0b11011`) are not supported. - Use `\u` escapes for weird characters, `\x` and `\ooo` escapes are not available in **.toml** files - Example: `\U0001f44d` for 👍 (thumbs up emoji) and `\u20ac` for € (EUR sign) - Unicode emoji, and non-ASCII characters, stand for themselves as long as you're careful to save in "UTF-8 without BOM" format     When your  **settings.toml ** file is ready, you can save it in your text editor with the **.toml**  extension. ![adafruit_products_dotToml.jpg](https://cdn-learn.adafruit.com/assets/assets/000/117/071/medium640/adafruit_products_dotToml.jpg?1671034293) ## Accessing Your **settings.toml** Information in **code.py** In your **code.py** file, you'll need to `import` the `os` library to access the **settings.toml** file. Your settings are accessed with the `os.getenv()` function. You'll pass your settings entry to the function to import it into the **code.py** file. ```python import os print(os.getenv("test_variable")) ``` ![](https://cdn-learn.adafruit.com/assets/assets/000/117/072/medium800/adafruit_products_tomlOutput.jpg?1671034496) In the upcoming CircuitPython WiFi examples, you'll see how the **settings.toml ** file is used for connecting to your SSID and accessing your API keys. # PyPortal Weekly Countdown Clock ## Internet Connect! # Connect to WiFi OK, now that you have your  **settings.toml** file set up - you can connect to the Internet. To do this, you need to first install a few libraries, into the lib folder on your **CIRCUITPY** drive. Then you need to update **code.py** with the example script. Thankfully, we can do this in one go. In the example below, click the **Download Project Bundle** button below to download the necessary libraries and the **code.py** file in a zip file. Extract the contents of the zip file, open the directory **examples/** and then click on the directory that matches the version of CircuitPython you're using and copy the contents of that directory to your **CIRCUITPY** drive. Your **CIRCUITPY** drive should now look similar to the following image: ![CIRCUITPY](https://adafruit.github.io/Adafruit_CircuitPython_Bundle/esp32spi_esp32spi_simpletest.py.png ) Info: Update to CircuitPython 9.2.x or later to use this example. https://github.com/adafruit/Adafruit_CircuitPython_ESP32SPI/blob/main/examples/esp32spi_simpletest.py And save it to your board, with the name **code.py**. Don't forget you'll also need to create the **settings.toml** file as seen above, with your WiFi ssid and password. In a serial console, you should see something like the following. For more information about connecting with a serial console, view the guide [Connecting to the Serial Console](https://learn.adafruit.com/welcome-to-circuitpython/kattni-connecting-to-the-serial-console). ```terminal >>> import wifitest ESP32 SPI webclient test ESP32 found and in idle mode Firmware vers. 1.7.5 MAC addr: 24:C9:DC:BD:0F:3F HomeNetwork RSSI: -46 HomeNetwork RSSI: -76 Fios-12345 RSSI: -92 FiOS-AB123 RSSI: -92 NETGEAR53 RSSI: -93 Connecting to AP... Connected to HomeNetwork RSSI: -45 My IP address is 192.168.1.245 IP lookup adafruit.com: 104.20.39.240 Ping google.com: 30 ms Fetching text from http://wifitest.adafruit.com/testwifi/index.html ---------------------------------------- This is a test of Adafruit WiFi! If you can read this, its working :) ---------------------------------------- Fetching json from http://wifitest.adafruit.com/testwifi/sample.json ---------------------------------------- {'fun': True, 'company': 'Adafruit', 'founded': 2005, 'primes': [2, 3, 5], 'pi': 3.14, 'mixed': [False, None, 3, True, 2.7, 'cheese']} ---------------------------------------- Done! ``` Going over the example above, here's a breakdown of what the program is doing: - Initialize the ESP32 over SPI using the SPI port and 3 control pins: ```python esp32_cs = DigitalInOut(board.ESP_CS) esp32_ready = DigitalInOut(board.ESP_BUSY) esp32_reset = DigitalInOut(board.ESP_RESET) #... else: spi = busio.SPI(board.SCK, board.MOSI, board.MISO) esp = adafruit_esp32spi.ESP_SPIcontrol(spi, esp32_cs, esp32_ready, esp32_reset) ``` - Get the socket pool and the SSL context, and then tell the `adafruit_requests` library about them. ```python pool = adafruit_connection_manager.get_radio_socketpool(esp) ssl_context = adafruit_connection_manager.get_radio_ssl_context(esp) requests = adafruit_requests.Session(pool, ssl_context) ``` - Verify an ESP32 is found, checks the firmware and MAC address ```auto if esp.status == adafruit_esp32spi.WL_IDLE_STATUS: print("ESP32 found and in idle mode") print("Firmware vers.", esp.firmware_version) print("MAC addr:", ":".join("%02X" % byte for byte in esp.MAC_address)) ``` - Perform a scan of all access points it can see and print out the name and signal strength. ```python for ap in esp.scan_networks(): print("\t%-23s RSSI: %d" % (ap.ssid, ap.rssi)) ``` - Connect to the AP we've defined here, then print out the local IP address. Then attempt to do a domain name lookup and ping google.com to check network connectivity. (Note sometimes the ping fails or takes a while; this isn't a big deal.) ```python print("Connecting to AP...") while not esp.is_connected: try: esp.connect_AP(ssid, password) except OSError as e: print("could not connect to AP, retrying: ", e) continue print("Connected to", esp.ap_info.ssid, "\tRSSI:", esp.ap_info.rssi) print("My IP address is", esp.ipv4_address) print( "IP lookup adafruit.com: %s" % esp.pretty_ip(esp.get_host_by_name("adafruit.com")) ) ``` Now we're getting to the really interesting part of the example program. We've written a library for web fetching web data, named [adafruit\_requests](https://github.com/adafruit/Adafruit_CircuitPython_Requests). It is a lot like the regular Python library named [requests](https://requests.readthedocs.io/en/latest/). This library allows you to send HTTP and HTTPS requests easily and provides helpful methods for parsing the response from the server. - Here is the part of the example program is fetching text data from a URL. ```python TEXT_URL = "http://wifitest.adafruit.com/testwifi/index.html" # Further up in the program # ... print("Fetching text from", TEXT_URL) r = requests.get(TEXT_URL) print('-' * 40) print(r.text) print('-' * 40) r.close() ``` - Finally, here the program is fetching some JSON data. The `adafruit_requests` library will parse the JSON into a Python dictionary whose structure is the same as the structure of the JSON. ```auto JSON_URL = "http://wifitest.adafruit.com/testwifi/sample.json" # Further up in the program # ... print("Fetching json from", JSON_URL) r = requests.get(JSON_URL) print('-' * 40) print(r.json()) print('-' * 40) r.close() ``` # Advanced Requests Usage Want to send custom HTTP headers, parse the response as raw bytes, or handle a response's http status code in your CircuitPython code? We've written an example to show advanced usage of the requests module below. To use with CircuitPython, you need to first install a few libraries, into the lib folder on your **CIRCUITPY** drive. Then you need to update **code.py** with the example script. Thankfully, we can do this in one go. In the example below, click the **Download Project Bundle** button below to download the necessary libraries and the **code.py** file in a zip file. Extract the contents of the zip file, open the directory **examples/** and then click on the directory that matches the version of CircuitPython you're using and copy the contents of that directory to your **CIRCUITPY** drive. https://github.com/adafruit/Adafruit_CircuitPython_Requests/blob/main/examples/esp32spi/requests_esp32spi_advanced.py Your **CIRCUITPY** drive should now look similar to the following image: ![CIRCUITPY](https://adafruit.github.io/Adafruit_CircuitPython_Bundle/requests_esp32spi_requests_esp32spi_advanced.py.png ) # WiFi Manager The way the examples above connect to WiFi works but it's a little finicky. Since WiFi is not necessarily so reliable, you may have disconnects and need to reconnect. For more advanced uses, we recommend using the `WiFiManager` class. It will wrap the connection/status/requests loop for you - reconnecting if WiFi drops, resetting the ESP32 if it gets into a bad state, etc. Here's a more advanced example that shows using the `WiFiManager` and also how to fetch the current time from a web source. https://github.com/adafruit/Adafruit_CircuitPython_ESP32SPI/blob/main/examples/esp32spi_localtime.py # Further Information For more information on the basics of doing networking in CircuitPython, see this guide: ### Networking in CircuitPython [Networking in CircuitPython](https://learn.adafruit.com/networking-in-circuitpython) # PyPortal Weekly Countdown Clock ## Code PyPortal with CircuitPython ## Weekly Countdown We can code the PyPortal in CircuitPython and set the day and time of a weekly occurrence, such as the airing of Adafruit's Ask an Engineer livestream, as well as the duration of the program. The PyPortal Countdown Clock will do the following: - Display a custom background .bmp for the event - Determine the current local time using the WiFi connection to the Internet - Draw out the countdown time in days, hours, and minutes - Display a second custom background graphic during the event, such as an "On Air" sign - After the event, start the countdown for the next week's occurrence of the event ![](https://cdn-learn.adafruit.com/assets/assets/000/072/290/medium800/internet_of_things___iot_weeklyonstand.jpg?1551807848) ## Adafruit IO Time Server In order to get the precise time, our project will query the Adafruit IO Internet of Things service for the time. Adafruit IO is absolutely free to use, but you'll need to log in with your Adafruit account to use it. If you don't already have an Adafruit login, create [one here](https://accounts.adafruit.com/users/sign_up). If you haven't used Adafruit IO before, [check out this guide for more info](https://learn.adafruit.com/welcome-to-adafruit-io/getting-started-with-adafruit-io). Once you have logged into your account, there are two pieces of information you'll need to place in your **settings.toml** file: _Adafruit IO username_, and _Adafruit IO key_. Head to [io.adafruit.com](https://io.adafruit.com/) and simply click the _View AIO Key_ link on the left hand side of the Adafruit IO page to get this information. Then, add them to the **settings.toml**  file like this: ```auto CIRCUITPY_WIFI_SSID = "your_wifi_ssid" CIRCUITPY_WIFI_PASSWORD = "your_wifi_password" AIO_USERNAME = "your_aio_username" AIO_KEY = "your_aio_key" ``` ## Install CircuitPython Code and Assets In the embedded code element below, click on the **Download Project Bundle** button, and save the .zip archive file to your computer. Then, uncompress the .zip file, it will unpack to a folder named **PyPortal\_WeeklyCountdown**. Copy the contents of the  **PyPortal\_WeeklyCountdown** directory to your PyPortal **CIRCUITPY** drive. ![](https://cdn-learn.adafruit.com/assets/assets/000/072/280/medium800/internet_of_things___iot_py_weekly_countdown_drag.jpg?1551805218) This is what the final contents of the **CIRCUITPY** drive will look like: ![CIRCUITPY](https://adafruit.github.io/Adafruit_Learning_System_Guides/PyPortal_PyPortal_WeeklyCountdown.png ) https://github.com/adafruit/Adafruit_Learning_System_Guides/blob/main/PyPortal/PyPortal_WeeklyCountdown/code.py Warning: ## How it Works The PyPortal Countdown is doing a couple of cool things to make your event display: ### Background First, it displays a bitmap graphic named `countdown_background.bmp` as the screen's background. This is a 320 x 240 pixel RGB 16-bit raster graphic in **.bmp** format. ![](https://cdn-learn.adafruit.com/assets/assets/000/072/614/medium800/internet_of_things___iot_ask16.bmp?1552411928) ## Time In order to calculate the countdown or count-up value, the PyPortal's CircuitPython code determines the local time by checking the internet time via the WiFi connection. It uses your IP address information to determine the local time. The good news is that once you've set up your timezone (or if the IP is fine) you do not have to adjust for daylight savings, leap years, etc. In some cases, the time may not appear correctly based on your IP address, but don't fear! You can override that by manually setting the timezone in your `secrets.py` file. Plus, you can explicitly set your PyPortal to display a different time zone in case you have travel plans or a friend in Tokyo or something! To do this, you'll add this line to your **secrets** file: `'timezone' : "America/Los_Angeles"` [Here's a great list of valid timezones](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones) from the IANA Timezone Database. Head there to find the name of the one you want. Simply find the nearest timezone to your desired location, and use that name as displayed in the **TZ database name** column.  You can adjust the following variables to make this work: - `EVENT_WEEKDAY` - `EVENT_HOUR` - `EVENT MINUTE` - `EVENT_DURATION` - `EVENT_LOCATION` Keep in mind, you'll set these values based on your local time and location. So, for example, here's how I would set the weekly countdown for the Adafruit Ask an Engineer livestream. It plays at 5pm PST (I live in Los Angeles) every Wednesday and is one hour long: ``` EVENT_WEEKDAY = 2 # monday = 0 .. sunday = 6 EVENT_HOUR = 17 # in 24-hour time EVENT_MINUTE = 00 EVENT_DURATION = 3600 # in seconds! # Instead of messing around with timezones, just put in # the *location* of the event, and we'll automatically set the PyPortal's # time to that location. Then compute the math from there # for a list of valid locations, see http://worldtimeapi.org/api/timezone EVENT_LOCATION = "America/Los_Angeles" ``` ## Font Then, it displays the info with bitmapped fonts to overlay on top of the background. You can learn more about [converting type in this guide](https://learn.adafruit.com/custom-fonts-for-pyportal-circuitpython-display). Now, the PyPortal will display the background and weekly countdown until it reaches the event! Then, it will display the second .bmp named `countdown_event.bmp` for the duration of the event. ![](https://cdn-learn.adafruit.com/assets/assets/000/072/328/medium800/internet_of_things___iot_countdown_event.bmp?1551820847) Afterwards, it repeats all over again for the next week. ## Customization If you like, you can also customize the background for a different event, by making your own 320x240 16-bit RGB color .bmp file. ![](https://cdn-learn.adafruit.com/assets/assets/000/072/322/medium800/internet_of_things___iot_countdown_background.bmp?1551818883) Then, adjust your setting to match the new event's time. In the case of the John Park's Workshop livestream: ``` EVENT_WEEKDAY = 3 EVENT_HOUR = 13 EVENT_MINUTE = 00 EVENT_DURATION = 1800 EVENT_LOCATION = "America/Los_Angeles" ``` ![](https://cdn-learn.adafruit.com/assets/assets/000/072/329/medium800/internet_of_things___iot_jpw_countdown_event.bmp?1551820871) ## Graphics Let's have a look at how the code places the elements on screen. Below, we can see the text items that are displayed. ![](https://cdn-learn.adafruit.com/assets/assets/000/072/671/medium800/internet_of_things___iot_weekly_positions.jpg?1552509063) ## Text Position Depending on the design of your background bitmap and the length of the text you're displaying, you may want to reposition the text and caption. The PyPortal's display is 320 pixels wide and 240 pixels high. In order to refer to those positions on the screen, we use an x/y coordinate system, where x is horizontal and y is vertical. The origin of this coordinate system is the upper left corner. This means that a pixel placed at the upper left corner would be (0,0) and the lower right corner would be (320, 240). ![](https://cdn-learn.adafruit.com/assets/assets/000/072/672/medium800/internet_of_things___iot_pyportal_grid.jpg?1552509100) ## Text Color Another way to customize your display is to adjust the color of the text. The line `text_color=0xFFFFFF` in the constructor shows how. You will need to use the hexadecimal value for any color you want to display. You can use something like [https://htmlcolorcodes.com/](https://htmlcolorcodes.com/) to pick your color and then copy the hex value, in this example it would be `0x0ED9EE` So, in order to customize the position and color of the text, you would adjust the values in these lines of code in `code.py`: ``` days_position = (25, 212) hours_position = (110, 212) minutes_position = (220, 212) text_color = 0x000000 ``` ## 3D Printed Stand If you'd like to create a 3D printed stand for your PyPortal Countdown Clock, you can follow the [general instructions in this guide](https://learn.adafruit.com/raspberry-pi-zero-stand), but use the [horizontal PyPortal Stand model linked here](https://www.thingiverse.com/thing:3457290). ![](https://cdn-learn.adafruit.com/assets/assets/000/072/362/medium800/internet_of_things___iot_IMG_4379_2k.jpg?1551824805) ![](https://cdn-learn.adafruit.com/assets/assets/000/072/360/medium800/internet_of_things___iot_IMG_4378_2k.jpg?1551824752) Use the four sets of standoffs and screws to fasten them together as shown. ![](https://cdn-learn.adafruit.com/assets/assets/000/072/366/medium800/internet_of_things___iot_IMG_4382_2k.jpg?1551824948) ![](https://cdn-learn.adafruit.com/assets/assets/000/072/361/medium800/internet_of_things___iot_IMG_4381_2k.jpg?1551824789) ## 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) ### 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 Out of Stock [Buy Now](https://www.adafruit.com/product/592) [Related Guides to the Product](https://learn.adafruit.com/products/592/guides) ### Circuit Playground Bolt-On Kit [Circuit Playground Bolt-On Kit](https://www.adafruit.com/product/3816) You have a [Circuit Playground Express](https://www.adafruit.com/product/3333), but you need to mount it to your charming cardboard robot friend, eh? Not so easy if you don't have a set of standoffs!  In this kit comes: - 6 x M3 12mm brass hexagonal... In Stock [Buy Now](https://www.adafruit.com/product/3816) [Related Guides to the Product](https://learn.adafruit.com/products/3816/guides) ### Ultimaker 2+ 3D Printer [Ultimaker 2+ 3D Printer](https://www.adafruit.com/product/2673) The **Ultimaker 2+** is one of our favorite 3D printers on the market. It's a well-built open-source compact machine with an excellent UX. Every inch of the Ultimaker 2+ is designed to create the most effortless and reliable 3D printing experience ever!  No Longer Stocked [Buy Now](https://www.adafruit.com/product/2673) [Related Guides to the Product](https://learn.adafruit.com/products/2673/guides) ### PLA Filament for 3D Printers - 2.85mm Diameter - Silver - 1 Kg [PLA Filament for 3D Printers - 2.85mm Diameter - Silver - 1 Kg](https://www.adafruit.com/product/3731) Having a 3D printer without filament is sort of like having a regular printer without paper or ink. And while a lot of printers come with some filament there's a good chance you've been printing up a storm and want something new.  That's why we carry 3D printing... No Longer Stocked [Buy Now](https://www.adafruit.com/product/3731) [Related Guides to the Product](https://learn.adafruit.com/products/3731/guides) ## Related Guides - [Adafruit PyPortal - IoT for CircuitPython](https://learn.adafruit.com/adafruit-pyportal.md) - [PyPortal Wake-Up Light Alarm Clock](https://learn.adafruit.com/pyportal-wake-up-light.md) - [Smart Mirror with PyPortal](https://learn.adafruit.com/smart-mirror-with-pyportal.md) - [CircuitPython Minesweeper Game](https://learn.adafruit.com/circuitpython-pyportal-minesweeper-game.md) - [Creating Slideshows in CircuitPython](https://learn.adafruit.com/creating-slideshows-in-circuitpython.md) - [PyPortal 2FA TOTP Authentication Friend](https://learn.adafruit.com/pyportal-2fa-totp-authentication-friend.md) - [TFT Spirit Board](https://learn.adafruit.com/tft-spirit-board.md) - [PyPortal New New New Product Viewer](https://learn.adafruit.com/pyportal-new-new-new-product-viewer.md) - [A Logger for CircuitPython](https://learn.adafruit.com/a-logger-for-circuitpython.md) - [PyPortal NASA Image of the Day Viewer](https://learn.adafruit.com/pyportal-nasa-image-of-the-day-viewer.md) - [Electronic History of the Day with PyPortal](https://learn.adafruit.com/electronic-history-of-the-day-with-pyportal.md) - [PyPortal Philips Hue Lighting Controller](https://learn.adafruit.com/pyportal-philips-hue-lighting-controller.md) - [CircuitPython Your Own Adventure](https://learn.adafruit.com/circuit-python-your-own-adventure.md) - [PyPortal Reddit Stats Trophy](https://learn.adafruit.com/pyportal-reddit-stats-trophy.md) - [PyPortal MQTT Sensor Node/Control Pad for Home Assistant](https://learn.adafruit.com/pyportal-mqtt-sensor-node-control-pad-home-assistant.md) - [PyPortal Guitar Tuner](https://learn.adafruit.com/pyportal-guitar-tuner.md)