Source-of-truth YAML (+ README) for the M5 Atom Echo dedicated Bluetooth proxy
that lends its BLE radio to shelly-manager's ble-agent for provisioning WiFi-less
Shellys over mOS RPC-over-BLE. Built/flashed via the in-cluster ESPHome Device
Builder (esphome.home.renner.uno).
Lean, dedicated config (no voice — bluetooth_proxy + voice boot-loops the
ESP32-PICO), esp-idf framework, bluetooth_proxy active. The api encryption key is
the handoff to the ble-agent (its BLE_PROXY_NOISE_PSK). The dashboard reads from
its PVC, not git, so these files are the reviewed/backed-up copy kept in sync by
hand.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>