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MeshGrid ESP32 - factory_v0.0.4 (BUILD 102)

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@toygar toygar released this 22 May 08:42
· 2 commits to main since this release
v0.0.4
8cd22ea

Release asset: factory_v0.0.4.bin — single merged image, flash at 0x0000.

Previous public release: factory_v0.0.3.bin (BUILD 87).

Verify after flash: USB serial 115200 → [MeshGrid] boot BUILD 102 or stats → BUILD=102.

Summary (user-facing)

This release improves long-running stability when the official app runs Signal Test or heavy BLE + LoRa traffic, fixes mesh line stroke width relay for shapes, and adds serial bench commands for field validation. No provisioning or MeshLink wire format change is required if you already use v0.0.3 with the same mesh password.

BUILD 102 — Signal-test / sustained probe stability (critical)

Problem addressed: After hundreds of Signal Test probes (~370+), nodes could appear frozen until manual reset.

Root cause: BLE notify queue saturation (status + RF telemetry + 50 ms delay per notify), hold-ring overflow, and LoRa scheduler slots stuck on repeated DIRECT_TX deferrals.

Fixes:

  • Drop disposable STATUS / RF_LINK notifies when the BLE notify queue is under pressure (metric: pressure_drop in stats).
  • Do not re-queue failed STATUS delivers (avoids BleTask spin).
  • Signal-test probes (numeric mesh chat body + callsign prefix): skip QUEUED BLE status, skip post-RX E22 UART register reads for RF telemetry, reduce post-notify delay 50 ms → 2 ms.
  • Reclaim stuck SCHED_DIRECT_TX slots after 4.5 s.
  • BLE notify hold ring 8 → 24 slots.

Validation: Dual-node LoRa probe stress — 420 probes per node (~35 min) — no lockup, no watchdog reset.

New serial commands (115200 baud):

  • txprobe CALLSIGN SEQ — enqueue one LoRa signal-test-style probe (e.g. txprobe ALPHA 42).
  • stress on / stress on BRAVO1 / stress off — automatic probe every 5 s (bench use).

BUILD 101 — Mesh line stroke width on peers

  • Cache shape stroke style from LoRa SHAPE_STYLE / embedded BLE style.
  • When relaying LINE geometry to iOS, append 4-byte stroke tail on BLE notify when cache hit (fixes peers seeing default ~4 pt width).

BUILD 100 — Embedded shape style from app

  • iOS can send stroke/style tail after shape geometry on BLE.
  • Firmware extracts and queues derived SHAPE_STYLE LoRa packet (retries under load).

BUILD 97 — Firmware build telemetry

  • Reports BUILD number to the app once per authenticated BLE session (MESH_STATUS_EVENT_NODE_FIRMWARE_BUILD).

BUILD 93 — LoRa RF telemetry (optional E22 registers)

  • RSSI/SNR sampling via E22 UART registers when enabled at boot.
  • RF_LINK status events toward the phone (rate-limited).

Compatibility

Item Notes
Mesh password Same as v0.0.3 — no re-provision required for upgrade
NVS Build number change clears pending TX replay queue only (existing behavior)
Official MeshGrid app Signal Test + map layers benefit from BUILD 102; flash nodes before relying on long Signal Test runs
Flash esptool.py --chip esp32 --port <PORT> --baud 460800 write_flash -z 0x0 factory_v0.0.4.bin

Flash size

  • Merged image size: ~1.63 MB (4 MB flash board, min_spiffs / 1.9 MB app partition).

Internal limits (unchanged unless noted)

  • ACK slots: 8 | Scheduler: 16 | Replay slots: 24 | BLE notify queue: 64 | Hold ring: 24 (was 8)
Assets 8
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