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Revision as of 11:02, 29 August 2018 by Davea (talk | contribs) (→‎Build-in)
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Using your badge

If you just got your badge and it doesn't do anything, don't despair, quite a few of them need to be factory reset before showing the loading screen. Press and hold MENU while quickly pressing the reset button at the back. Keep the MENU button hold for another 2 seconds. Release it when both the red and green LED are lit. If you got it correct both LEDs should flash a few times.
If this doesn't work you can update the badge firmware. If this doesn't work, please come and join us in #tilda on Freenode IRC


With your badge you will receive a booklet explaining how it's done. If you have any problems, please come to the Badge Operation Center and we will help you.

Basic usage

After you have assembled your badge you can just use the tiny switch at the bottom of the screen to turn your badge on. Alternatively you can use any USB power source. If you turn your badge on for the first time (or if for some reason it has reset itself) you will get some on-screen information while we try to download the newest set of software.

If at any point you want to restart your badge you can just press the reset button at the back.

Changing your name

  1. Press 'Menu'
  2. Select the 'Settings" app
  3. "Change Name" and press 'A'
  4. Use the joystick and 'A' key to enter your name
  5. Press 'Menu' to save your name and reset the badge - your name should now be displayed!

Installing new apps

  1. Press 'Menu'
  2. Select 'Badge Store' app and press 'A'
  3. Select "Install"
  4. Select a category and then an app. Wait until you see the description and press "A" to save it.
  5. Press B a few times (or alternatively MENU) to restart your badge
  6. On the home screen you can now press MENU to find your newly installed app.


Your TiLDA Badge has built-in wifi support. It should all just work if you're at the campsite, but if you're on your own network you might have to tell the badge about it. For more information please have a look here: WiFi


The badge charges via a microUSB socket, and takes about 2-3 hours for a full charge. The red charge LED next to the USB connector will extinguish when charging is complete [todo: is this still correct?]

Nothing works! Help!

Don't worry, you can always "factory reset" your badge. Please follow these instructions: Resetting

If everything else absolutely fails, you can try following these instructions (advanced): TiLDA_MK4/Firmware_Update

Hacking your badge

Badge Hacking Workshop Documentation

One of the main goals of TiLDA is to make hacking it as easy as possible. All you need to do so is a computer with USB and your badge.

The badge itself runs code written in the computer language Python which is run by a bit of software called Micropython.

For more information about the functions available please have a look at the Badge API section of this page.

In case you're more interested in what makes the hardware tick and your confident with C++ and microprocessors then you can work directly with the micropython code that runs TiLDA: How to build the firmware from scratch

All code used is hosted on Github. Contributions and PR are very welcome!

Some ideas

Please share what you've done (or want to do) with others!

Badge API


TiLDA Libraries

On top of the build-in modules above we have also created a bunch of helpful libraries written in python. If you go through the bootstrap process or use the App Library you should always have a full set of those on your badge. If for some reason this isn't the case you can download our repository from https://github.com/emfcamp/Mk3-Firmware and copy the lib folder onto your badge.

for now please have a look at the libraries themselves: https://github.com/emfcamp/Mk4-Apps/tree/master/lib

(feel free to add additional ideas, and create links new wiki pages to on-going projects, perhaps someone will want to contribute)


Full hardware files are on GitHub [1]

Badge hardware

TiLDA comes with a long list of very useful hardware. Some might be obvious, but some are a bit hidden.

  • Texas Instruments MSP432E4 SimpleLink Microcontroller (ARM Cortex-M4F @ 120MHz)
  • Texas Instruments CC3120 SimpleLink Wi-Fi® Network Processor
  • 256KB internal RAM / 8MB external SDRAM
  • 1MB internal flash (firmware) / 1MB external flash (filesystem)
  • SIM800 Quad-band GSM/GPRS module with Bluetooth support
  • 240x320 RGB screen
  • 2 WS2812B RGB LEDs (aka Neopixels) with a 3-pin header to connect your own (And this year they’re the right way up!)
  • Texas Instruments HDC2080 Low Power Humidity and Temperature Sensor
  • Texas Instruments TMP102 Digital Temperature Sensor
  • Texas Instruments OPT3001 Digital Ambient Light Sensor
  • Texas Instruments DRV5055 High Accuracy Bipolar Hall Effect Sensor
  • Speaker and Microphone
  • 2000mAh Battery
  • Onboard Ethernet (requires breakout)
  • A T9 number keypad and a joystick
  • 2 Seed Studio Grove headers (one UART, one I²C)
  • Conductive thread points and 0.1" header for power/UART/I2C/GPIO
  • Defcon 26 Shitty Add-Ons connector

(todo: please add links from http://blog.emfcamp.org/post/177423823788/tilda-mk4-the-emf-2018-badge)

Hardware files are available on GitHub [2].