Badger-2040-emfcamp-Now-Next

An app for the Badger 2040 (Original and W versions) to display Now/Next info for the main stages at EMF2024 (www.emfcamp.org). Intended to be copied into the Badger OS that ships with the badge.

The app should work on both versions of the badge. The app checks the version of the badge and uses a local copy of the schedule if WiFi is not available. Thanks to James R https://github.com/creativenucleus for creating the prebuild script! :-)

This app uses an adapter for the EMF API which can be found here: https://github.com/DanNixon/emfcamp-schedule-api/tree/main/adapter The adapter allows for testing by including a fake_epoch which offsets the schedule accordingly. Thanks Dan! :-)

N.B. This is all subject to change as the 2024 schedule has not been released yet. Some changes are likely and there may be updates up to the start of the event and potentially during.

Installation

Copy the files from the Code folder into the Badger OS firmware folder structure.

Setup for Badger 2040 (non-W).

No additional setup is required.

Optionally:

There is an action set up to refresh the static schedule file in this repository so you should just need to grab a new copy if you need to update it. If necessary, the static_schedule.json file can be manually updated by running the make_static_schedule.py script which can be found in the prebuild folder.

Setup for Badger 2040 W

WiFi is required for calls to the API so the app assumes you've already set up the WIFI_CONFIG.py file on the badge.

fake_epoch for testing

In schedule.py, there is a variable called URL which includes the fake_epoch value. The date and time should be set to something within the last couple of days for testing. At EMF 2022, the first event in the schedule was at 10:00AM, the day before the opening ceremony so if you set the fake_epoch to yesterday at 10:00AM, it will be like reliving the first day of EMF 2022! Once the 2024 schedule goes live, the offset will likely be different so the fake_epoch will need to be adjusted accordingly (and potentially as new events are added).

Remove the fake_epoch for use at EMF 2024

The fake_epoch portion of the query should be removed from the URL when using the app at EMF 2024 - unless you really want to pretend you're living in a different timezone! For live use, the URL should be defined as:

URL = "https://schedule.emfcamp.dan-nixon.com/now-and-next?venue=Stage+A&venue=Stage+B&venue=Stage+C"

Sleep options

If no buttons are pressed for a certain time, the badge will go to sleep. The Badger 2040 W will wake up periodically to refresh, update the screen and go back to sleep again. (The Badger 2040 will just go to sleep.) If a button is pressed then the badge will wake up and refresh straight away.

The sleeptime variable sets the time between updates.

The timeout variable defines how quickly the badge goes to sleep. By default, this is 10 seconds when waking up to refresh or 30 seconds if woken up by a button press.

These values should be edited in schedule.py if you wish to change them.

Usage

When the app starts or wakes up, it will check the version of the badge, connect to WiFi if possible and display the Now and Next events for Stages A, B and C.

If the app is able to connect to the API, it will show the live schedule information. If not, it will show the information from a local copy of the data, based on the last time it was used. The last refresh time or offline display time will be displayed in the top right corner of the screen.

Pressing BUTTON_A, BUTTON_B or BUTTON_C will open the details for the "now" event on the respective stage. Pressing the same button again will open the details for the "next" event on that Stage. Subsequent presses will toggle between "now" and "next".

Pressing BUTTON_UP will go back to the main page.

Pressing BUTTON_DOWN will refresh the data and go back to the main page.

The LED indicates that the app is running and is off while the badge is sleeping.

Offline mode

Offline mode is indicated in the top left corner of the screen. While offline, you can use BUTTON_UP and BUTTON_DOWN on the main page to navigate through the schedule, moving back and forth between the distinct event start times. Because the EMF schedule is so vast and wonderful, the long descriptions in the detailed view of the events are reduced to the first 255 characters to to reduce the size of the local copy.

Forced Offline mode (Badger 2040 W only)

If there are issues with the WiFi, you can force the W version of the badge to run in offline mode until you have a good connection again.

To switch between online and offline modes:

1. Hold the Reset button on the back of the badge.
2. Hold the Up and Down buttons as well.
3. Release Reset.
4. Release Up and Down.

While the Badger 2040 W is in forced offline mode, the badge will continue to wake up every 10 minutes incrementing the display time each time it wakes up.