Make BLE daemon resilient to device swaps and add device-initiated refresh

- Cache invalidation: drop ~/.config/claude-usage-monitor/ble-address and remove
  the dead MAC from bluez on connect failure, so swapping ESP boards no longer
  pins the daemon to a stale factory MAC
- Scan robustness: pick first matching candidate (head -1), sanity-check cached
  content for valid MAC format, handle multiple Claude Controllers in bluez
- 5s tick + 60s poll: inner loop wakes every 5s for fast disconnect detection
  while keeping Anthropic API cadence at one minute
- Refresh-request channel: new GATT characteristic ...0004 NOTIFY, firmware
  fires once in onSubscribe when has_received_data is false; daemon subscribes
  via setsid'd dbus-monitor pipeline (process group cleanup avoids the
  bash-wait-on-job hang we hit on disconnect)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

This commit is contained in:

Hermann Björgvin Haraldsson

2026-05-09 23:44:39 +00:00

co-authored by

Claude Opus 4.7

parent 97a5443601

commit 38d8894016

4 changed files with 136 additions and 15 deletions

									
										firmware/src/ble.h
									
		+1
		
												View File
												
				@@ -18,6 +18,7 @@ bool ble_has_data(void);

				const char* ble_get_data(void);

				void ble_send_ack(void);

				void ble_send_nack(void);

				void ble_request_refresh(void);

				// BLE HID keyboard

				void ble_keyboard_press(uint8_t key, uint8_t modifier);