Add NimBLE integration for ESP32 BLE - #135
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Integration branch for stackchan-picoruby on top of the clean btstack PR (picoruby#135) base, which already carries the picoruby-ble ESP32 port via submodule (PR #427) and latest upstream/master. - build_config: add ili9342 / py32-io-expander / stackchan-protocol / scservo gems (tag v0.1.0 via branch:). stackchan-led omitted — inlined into stackchan-picoruby app/application.rb. - sdkconfigs/cores3: QUAD PSRAM overlay for CoreS3. - sdkconfig.defaults: 4MB -> 16MB flash (CoreS3). - .gitmodules: point picoruby submodule at bash0C7 fork (holds BLE port). Does NOT include the legacy main/btstack_smoke.c bring-up path; the matured picoruby-ble port supersedes it. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Compiles picoruby-ble's ESP32 port (ble.c / ble_peripheral.c / ble_central.c / nimble_owner.c) into components/picoruby-esp32, requiring ESP-IDF's built-in bt component with NimBLE enabled via a new sdkconfigs/bt_nimble fragment. No vendored host stack needed. Depends on picoruby/picoruby#427 (picoruby-ble ESP32 NimBLE port) for the submodule side; the picoruby submodule pin here is left untouched and will move once #427 merges upstream. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Summary
Wires picoruby-ble's ESP32 port into components/picoruby-esp32, using ESP-IDF's built-in NimBLE host stack (no vendored host stack needed).
ble.c/ble_peripheral.c/ble_central.c/nimble_owner.csdkconfigs/bt_nimblefragmentpicoruby-ble/picoruby-ble-uartto the xtensa build configRelated
Companion PR (picoruby-ble ESP32 NimBLE port): picoruby/picoruby#427
Depends on #427: the
picorubysubmodule pin here is left untouched for now and will be bumped once #427 merges upstream.