LayerOne
The May 25-27, 2018 LayerOne Pasadena edition whose official Hardware Hacking Village archive, Hackaday event report, CharlieX repository, and mmca hardware notes document an ESP32-WROOM-32 audio/network conference badge.
Pasadena Hilton, Pasadena, California · United States · 2018
LayerOne 2018's electronic badge was an ESP32-WROOM-32-based audio and network badge documented by the official HHV archive, Hackaday's event report, the linked CharlieX ESP32_Alexa repository, and mmca's public hardware notes.
Lifecycle
The event report documents I2S audio hardware, a 2-watt speaker amplifier, and a microphone pre-amplifier for the voice/audio experiment path.
mmca's Hackaday.io log documents an official blinking LayerOne logo add-on for the 2018 L1 badge and its 3.3 V, GPIO2, and ground connector path.
Hackaday identifies the 2018 LayerOne badge around an ESP32-WROOM-32 module with Wi-Fi and Bluetooth-capable microcontroller hardware.
The event report notes GPIO breakout pads for attendee hacking and experimenting beyond the default badge behavior.
The linked CharlieX repository preserves an ESP32 Alexa experiment source trail derived from MakerAsia work, which the catalogue records without claiming a complete deployed production voice-assistant service.
Hackaday describes an 18650 cell and charging circuit as part of the badge hardware package.
Operational history
The entry remains source-backed and image-free rather than copying article photos, event media, repository screenshots, or project images without full provenance.
The United States record remains source-backed and image-free rather than copying source-page media, documentation screenshots, event photos, social media, placeholders, or generated approximations.
The record preserves the voice/audio ambition without overstating default deployed service behavior.
The record keeps hardware and software statements tied to public evidence while avoiding unsupported production-scale and final-firmware claims.