Workout Berlin 2019-10-03

The first card10 workout will happen at xHain in Berlin from October 3rd to 6th, 2019.

Location and Times

  • Location: xHain: Gr├╝nberger Str. 16, 10243 Berlin
  • Times: 2019-10-03 to 2019-10-06, all day in general, details to follow
  • Capacity: Around 10-20 people


  • rahix
  • lilafisch
  • peter
  • schneider
  • hds
  • paulaner
  • YOU?



We will most likely work on integating more Merge Requests into the firmware, creating a new release.


If you have issues with your hardware swing by and we can see if there is a quick fix. We will have spare parts!


We plan to experiment with some more phones to improve BLE support. If you want to work on the wiki feel free too. Lots of people wo know around ;)


We still have plenty of conductive thread and a lot of ideas. Do you have some too?


We can make us of xHain during the times as mentioned above. If you want to allocate some time for specific workshops or similar, mention it here:

Title Person Start Time / Day Duration
ECG logging documentation /experiments schneider Thursday 13:00 4 hours
@Berlindroid-Meetup Thursday 19:00 5 hours
card10 repair cafe schneider Friday 14:00 2 hours
card10 team lunch? all Friday 15:30 1.5 hours
generative 3D printed card10 cover design Niklas Roy Friday 17:30 1.5 hours
MicroPython introduction lilafisch Friday 20:00 1.5 hours
app discovery lilafisch Saturday 11:00 1.5 hours
card10 repair cafe schneider Saturday 14:00 2 hours
card10 documentation lilafisch Saturday 14:00 2 hours
Sewing wearables lilafisch Saturday 16:00 2.5 hours
card10 @ 36C3 #1 (dinner) schneider Saturday 18:30 1.5 hours
BME680 hacking schneider Saturday 20:00 4 hours
card10 repair cafe schneider Sunday 14:00 2 hours
card10 @ 36C3 #2 (also: next workout) schneider Sunday 16:30 1.5 hour

generative 3D printed card10 cover design

Learn more about the generative 3D printed card10 covers (, get inspired for you own generative designs, and learn skills for implementing them with openSCAD.

MicroPython introduction

If you haven’t dared trying to write your own apps for your card10, now is your chance to learn how to do it! Programming your card10 using MicroPython is easy to learn, and all you need is your laptop (preferably linux), a usb-C cable, and of course your card10.

App discovery

There are hundreds of card10 apps in the hatchery. Let’s start the day by exchanging our favourite discoveries, and trying some new ones.

card10 @ 36C3

Camp is over, but congress is already coming up! Everyone is welcome to join collecting ideas and planning card10 action for congress.

Repair cafe

Open hardware means you can fix it! We’re bringing some spare parts, and plenty of assistance is around, so together we can restore the broken bits of some card10s.

Obviously, you should bring your card10 if you want to fix it ;), everything else will be around at the event.


Let’s get together and make an effort to share what we know, or ask some new questions that need answering and documenting.

Bring questions :) Also, a laptop will be very useful for writing documentation.

Sewing wearables

Extend your card10 on the wristband, with some blinking LEDs. We’ll have needles, thread, and LEDs.

You should definitely bring your card10, you can also bring your own LEDs, or if you have any wearable sensors you’d like to attach we can try to figure out how to connect them to your card10 together.


xHain is not a place to sleep, so please make sure you have some accomodation. Get in touch with us on IRC/Matrix if you don’t know.