meshtastic/Meshtastic-Android
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Meshtastic-Android/core/network
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James Rich a6f3a6b4a5 fix(serial): assert DTR/RTS on Android USB-CDC open 
Empirically, RAK4631/nRF52840 firmware does not respond to WAKE_BYTES
unless DTR is asserted on open. DTR maps to USB SET_CONTROL_LINE_STATE,
which the firmware uses to detect host presence and activate its serial-
side Meshtastic protocol. Bridge-chip boards (CH340, CP210x, FTDI)
tolerate the assertion.
2026-04-20 11:29:13 -05:00
..
src fix(serial): assert DTR/RTS on Android USB-CDC open 2026-04-20 11:29:13 -05:00
build.gradle.kts feat(mqtt): migrate to MQTTastic-Client-KMP (#5165) 2026-04-17 15:19:08 +00:00
detekt-baseline.xml feat: implement XModem file transfers and enhance BLE connection robustness (#4959) 2026-03-31 03:49:31 +00:00
README.md refactor: BLE transport and UI for Kotlin Multiplatform unification (#4911) 2026-03-25 02:15:51 +00:00

README.md

:core:network

Overview

The :core:network module handles all internet-based communication, including fetching firmware metadata, device hardware definitions, and map tiles (in the fdroid flavor). It also provides the shared radio transport layer (TCPInterface, SerialTransport, BleRadioInterface).

Key Components

1. Ktor Client

The module uses Ktor as its primary HTTP client for high-performance, asynchronous networking.

2. Remote Data Sources

  • FirmwareReleaseRemoteDataSource: Fetches the latest firmware versions from GitHub or Meshtastic's metadata servers.
  • DeviceHardwareRemoteDataSource: Fetches definitions for supported Meshtastic hardware devices.

3. Shared Transports

  • BleRadioInterface: Multiplatform BLE transport powered by Kable.
  • TCPInterface: Multiplatform TCP transport.
  • SerialTransport: JVM-shared USB/Serial transport powered by jSerialComm.
  • BaseRadioTransportFactory: Common factory for instantiating the KMP transports.

Module dependency graph

graph TB
  :core:network[network]:::kmp-library

classDef android-application fill:#CAFFBF,stroke:#000,stroke-width:2px,color:#000;
classDef android-application-compose fill:#CAFFBF,stroke:#000,stroke-width:2px,color:#000;
classDef compose-desktop-application fill:#CAFFBF,stroke:#000,stroke-width:2px,color:#000;
classDef android-feature fill:#FFD6A5,stroke:#000,stroke-width:2px,color:#000;
classDef android-library fill:#9BF6FF,stroke:#000,stroke-width:2px,color:#000;
classDef android-library-compose fill:#9BF6FF,stroke:#000,stroke-width:2px,color:#000;
classDef android-test fill:#A0C4FF,stroke:#000,stroke-width:2px,color:#000;
classDef jvm-library fill:#BDB2FF,stroke:#000,stroke-width:2px,color:#000;
classDef kmp-feature fill:#FFD6A5,stroke:#000,stroke-width:2px,color:#000;
classDef kmp-library-compose fill:#FFC1CC,stroke:#000,stroke-width:2px,color:#000;
classDef kmp-library fill:#FFC1CC,stroke:#000,stroke-width:2px,color:#000;
classDef unknown fill:#FFADAD,stroke:#000,stroke-width:2px,color:#000;