Working on better version

PKA_SUMMARY.md

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+---
+title: "esp32-debug-dongle"
+source: pka-assess
+---
+
+# esp32-debug-dongle
+
+## Purpose
+
+ESP32 dev-kit firmware turning the chip into a WiFi + Bluetooth serial-terminal dongle. Browser-based terminal uses xterm.js served from the ESP's LittleFS; also exposes a classic Bluetooth SPP port for desktop/mobile terminal apps. Multi-port (internal debug / USB / external Serial1) with on-the-fly baud-rate switching.
+
+## Type
+
+ESP32 PlatformIO firmware. `#embedded`, `#firmware`, `#iot`, `#service`.
+
+## Dependencies
+
+- **External:** PlatformIO `espressif32` + Arduino framework, xterm.js (bundled in LittleFS), Bluetooth SPP stack (classic BT — needs a WROOM-style ESP32, NOT S2/S3/C3).
+- **Internal:** complementary tool to ESP32 Sh3d projects — [[Sh3dNb]], [[Sh3dController]], [[Sh3dStick]], [[Doxy]] — when serial access is awkward.
+
+## Notable
+
+- Uses a `huge_app.csv` partition (3 MB app, 1 MB FS, no OTA) — swap to `min_spiffs.csv` if OTA is needed.
+- Classic Bluetooth requirement is a hard constraint on target hardware.