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Ryan Malloy 2506e3ce3e fix: improve error logging for MQTT connection failures

- Add TLS security warning when certificate verification is disabled
- Add getMQTTErrorString() to translate PubSubClient error codes
- Show broker/user info on connection failure for debugging
- Standardize log prefix to [MQTT] (was inconsistent [MQTTS])
- Use transport-agnostic "Network" instead of "WiFi" in messages
- Fix WiFiState/NetworkState enum mismatch in getWiFiStatus()

Error codes now show meaningful messages like:
  "Bad credentials (check username/password)" instead of "rc=4"

2026-02-05 10:02:15 -07:00

docs

Initial commit: Heltec V3 MeshCore repeater

2026-01-25 12:15:15 -07:00

src

fix: improve error logging for MQTT connection failures

2026-02-05 10:02:15 -07:00

.gitignore

Initial commit: Heltec V3 MeshCore repeater

2026-01-25 12:15:15 -07:00

platformio.ini

Add ENC28J60 Ethernet support with INetworkManager abstraction

2026-02-05 09:45:16 -07:00

README.md

Add project README with build instructions

2026-01-25 13:09:53 -07:00

README.md

Heltec V3 MeshCore Repeater

A standalone MeshCore LoRa mesh repeater for the Heltec WiFi LoRa 32 V3.

Build

pio run

Flash

Via USB:

pio run -t upload

Via OTA:

Connect to serial: screen /dev/ttyUSB0 115200
Type: start ota
Join WiFi: MeshCore-OTA
Browse to: http://192.168.4.1/update
Upload: .pio/build/heltec_v3_repeater/firmware.bin

Monitor

pio device monitor

Configuration

Edit platformio.ini:

-D ADVERT_NAME='"RPM Repeater"'
-D ADVERT_LAT=0.0
-D ADVERT_LON=0.0
-D ADMIN_PASSWORD='"password"'

Dependencies

Requires MeshCore library at ../MeshCore.

Docs

See docs/ for detailed documentation.