diff --git a/MILESTONES.md b/MILESTONES.md
index d2549b1..ab44f76 100644
--- a/MILESTONES.md
+++ b/MILESTONES.md
@@ -9,6 +9,7 @@
 - [x] ~~Web UI~~ *(canceled)* ([note](docs/progress/2025-06-18_10-33_placeholder_audit.md))
 - [x] EEPROM preset handling ([log](docs/progress/2025-06-18_07-42-12_firmware_agent_presets.md))
 - [PLANNED] Milestone v0.4.0 kickoff – expand remote control, web UI and testing
+- [IN_PROGRESS] ESP+UI hardware coordination ([log](docs/progress/2025-06-19_root_audit_esp_ui.md))
 
 ## v0.4.0 – Remote Control Expansion (PLANNED)
 - Kickoff: 2025-06-18
diff --git a/TODO.md b/TODO.md
index 72769fc..e5d1e48 100644
--- a/TODO.md
+++ b/TODO.md
@@ -35,3 +35,4 @@
 
 - [DISPATCHED] (esp_agent, protocol_agent) Coordinate serial bridge message format and heartbeat timing
 - [DISPATCHED] (ui_agent, pc_agent) Align Web UI controls with Qt GUI
+- [DONE] (root_agent) Final ESP+UI integration audit (see docs/progress/2025-06-19_root_audit_esp_ui.md)
diff --git a/docs/progress/2025-06-19_root_audit_esp_ui.md b/docs/progress/2025-06-19_root_audit_esp_ui.md
new file mode 100644
index 0000000..01e9dbf
--- /dev/null
+++ b/docs/progress/2025-06-19_root_audit_esp_ui.md
@@ -0,0 +1,34 @@
+# ESP8266 + Web UI Integration Audit
+Date: 2025-06-19 05:02 CEST
+
+## Reviewed Material
+- Progress logs from 2025-06-18 17:43 onward
+- ESP and pin configuration docs under `docs/configuration/`
+- OTA guides under `docs/impl/` and `docs/guides/`
+- Firmware pin mappings (`firmware/shared/config/pins.h`)
+- User tools loading `config/pins.conf`
+
+## Configuration Override References
+- `firmware/shared/config/pins.h` lines 1‑22 define all default pins
+- Editable copy at `config/pins.conf` lines 1‑13
+- Docs reference overrides in `docs/impl/esp8266.md` and `docs/configuration/pins.md`
+
+## Findings
+- Pin assignments respect the D20+ policy for non‑LCD peripherals
+- OTA documentation warns about 3.3V and GPIO0 usage
+- `ddsctl.py` and `MainWindow.go` load `config/pins.conf`
+- `docs_agent` and `ui_agent` produced logs with wiring and OTA docs
+- No progress logs from esp_agent, protocol_agent, firmware_agent or pc_agent after kickoff
+
+## Subsystem Compliance
+| Subsystem | Status |
+|-----------|-------|
+| Firmware  | Pins centralized, OTA guarded; LED command implemented |
+| ESP       | Web server and UI exist, but no progress log |
+| Protocol  | LED command constants added, no recent log |
+| PC Tools  | Loads pins.conf; LED command not implemented |
+| Docs      | Pin maps and OTA docs complete |
+| UI        | Minimal Web UI committed |
+
+Reminder prompts will be dispatched for missing progress logs and LED handling in PC tools.
+