Boards in 1 GitHub repository, designed in KiCad, that use the LM4889MA by Texas Instruments (-40℃~+85℃ 0.1% 1-Channel 1Wx1@8Ω 2.2V~5.5V 4mA 75dB Automatic mute/no-noise switch、Enable/disable function、ESD protection SOIC-8 Audio Amplifiers ROHS). See how each wires it, with its parts, size, README and files; the LM4889MA’s symbol, footprint and pinout are on its own page.
Karthikpkarthik/Dood_v1
An offline dog "walkie-talkie" inspired by the Galton whistle. Using a local CNN accelerator for voice recognition, the trainer's node spots commands (like "Sit") and sends a character sequence via Meshtastic LoRa mesh…