Add-on dossier
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
The event report documents I2S audio hardware, a 2-watt speaker amplifier, and a microphone pre-amplifier for the voice/audio experiment path.
Badge context
mmca hardware log tying the 2018 L1 badge to an official blinking LayerOne logo add-on using a 3.3 V, GPIO2, and ground add-on connector.
Repository README source for the ESP32 Alexa experiment lineage, software setup, and source-license boundary.
Conference archive source for the May 25-27, 2018 Pasadena Hilton LayerOne event context.
Hackaday source for ESP32-WROOM-32, I2S audio, amplifier, microphone preamp, 18650 power, GPIO breakout, Alexa experiment framing, soldering village, and blinky add-on context.
Official HHV page identifying the 2018 Electronic Badge and linking Hackaday's full article for build and badge details.
Public CharlieX repository linked from Hackaday's 2018 LayerOne badge coverage for the ESP32 Alexa experiment source trail.
Source trail
Repository documentation source for the ESP32 Alexa experiment lineage and source-license boundary.
Public source repository linked from the Hackaday article for the badge's ESP32 Alexa experiment code trail.
First-hand event report source for the ESP32-WROOM-32 badge hardware, audio/Alexa experiment path, cloud-cost caveat, soldering village, and official blinky add-on context.
Project-owner hardware log source for the official blinking LayerOne logo add-on and the 2018 badge add-on connector pinout.
Conference archive source proving the May 25-27, 2018 Pasadena Hilton LayerOne event context.
Official village source naming the 2018 Electronic Badge and linking Hackaday's article for full build details.