~/talk

How to make your LEDs better listeners

Talkat JSHeroes 2018 · on Thursday, 2018-04-12· [embedded-and-hardware, web-platform]
slides:none on file

Build is a wearable LED system that first uses socket.io and Adafruit Feathers and then switches to MQTT after flaky Wi‑Fi and repeated crashes at a public light ride. The claim: MQTT makes web → hardware messaging reliable; tools actually used: MQTT over port 1883, MQTT.js in the browser, an embeddable Aedes broker in Node on moved from Heroku to DigitalOcean, and upgraded microcontrollers to a Feather M0 with Wi‑Fi to fix disconnects. The final setup runs and stops frequent reboots.

AI-written summary · about

  1. 0:00Start
  2. 1:11I LIKE TO BUILD FUN THINGS WITH LEDS.
  3. 2:11JEAN TINGUELY
  4. 3:27I wanted something ephemeral that
  5. 5:17PROJECT PLAN
  6. 7:26User picks a color program
  7. 8:27ADAFRUIT FEATHER HUZZAH ESP8266
  8. 9:20Umbrella Wiring
  9. 10:31FIRST OUTING: LIGHTED BIKE RIDE AMSTERDAM
  10. 12:57CODING FOR HARDWARE
  11. 15:47RELIABLE
  12. 17:29SETUP MQTT CLIENTS + BROKER
  13. 18:28SETUP ARDUINO CLIENTS
  14. 19:09SETUP MQTT BROKER
  15. 21:18BUILD A MQTT BROKER
  16. 21:49MQTT BROKER: AEDES
  17. 22:19IMPLEMENT THE MQTT BROKER
~/search
type to search 6,249 conferences, 138,987 speakers and 185,172 talks
~/help
cmdctrl k
search every conference, speaker and series
/
focus the filter search
h
home
c
conferences
s
speakers
e
series
t
light / dark — the status bar button does the same
?
this help
esc
close this, then clear every filter — or just the search, while you are typing in it

Ignored while you are typing. Pages without a filter rail have no search to focus.