{"id":25654193,"url":"https://github.com/bushlanovdev/ble-telemetry-lite","last_synced_at":"2026-06-09T21:31:57.912Z","repository":{"id":278632424,"uuid":"933238084","full_name":"BushlanovDev/ble-telemetry-lite","owner":"BushlanovDev","description":"✈️🎮📲 Crossfire and ELRS telemetry bridge from radio transmitter via BLE and 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BLE Telemetry Lite\n\n[English](./README.md) | [Russian](./README_RU.md)\n\nFirmware for **ESP32-C3**, **ESP32-S3**, and similar microcontrollers, enabling telemetry broadcast from Crossfire and ELRS radio systems over Bluetooth or Wi-Fi.\n\n## Features\n\n* Transmits Crossfire/ELRS telemetry from RC transmitters to phones, tablets, or laptops via Bluetooth or Wi-Fi\n* Compatible with transmitters using Aux-serial output as well as direct connection to internal modules (e.g. Jumper RC up to T15)\n* Telemetry display supported via [TelemetryViewer](https://github.com/RomanLut/android-taranis-smartport-telemetry/releases), [WebTelemetry](http://telemetry.skydevices.ru), or the built-in web interface\n\n## Hardware\n\nDevelopment boards **ESP32-C3-SuperMini** (recommended) or **ESP32-S3-SuperMini**.\nOther ESP32-based boards with BLE and Wi-Fi support may also work, but compatibility is untested and not guaranteed.\n\n\u003cimg src=\"https://github.com/BushlanovDev/ble-telemetry-lite/blob/main/images/esp32-c3_esp32-s3.jpg?raw=true\" width=\"60%\" alt=\"ESP32-C3-SuperMini \u0026 ESP32-S3-SuperMini\"/\u003e\n\nThese boards are compact, affordable, and free from unnecessary components.\nIf using a different **ESP32-C3** or **ESP32-S3** board, note that pin numbering may differ from the microcontroller's internal pin numbers.\nRefer to your board’s datasheet to identify correct pin mappings.\n\n## Wiring\n\nThe module connects to the transmitter’s SerialAUX interface using 4 wires:\n\n* 5V\n* GND\n* TX → to pin 3 (module RX)\n* RX → to pin 4 (module TX) (optional)\n\nWiring to a RadioMaster Pocket transmitter example\n\n\u003cimg src=\"https://github.com/BushlanovDev/ble-telemetry-lite/blob/main/images/esp32-c3-supermini_to_rm_pocket.jpg?raw=true\" width=\"50%\" alt=\"Connection to RadioMaster Pocket\" title=\"Connection to RadioMaster Pocket\" /\u003e\n\nIf the transmitter lacks SerialAUX, connect the ELRS/Crossfire internal module’s TX pin directly to the module’s RX (pin 3).\n\nConnection to internal TX on a Jumper T20 transmitter example\n\n\u003cimg src=\"https://github.com/BushlanovDev/ble-telemetry-lite/blob/main/images/esp32-c3-supermini_to_jumper-t20.jpg?raw=true\" width=\"50%\" alt=\"Connection to Jumper T20 internal TX\" title=\"Connection to Jumper T20 internal TX\" /\u003e\n\n## Flashing and Configuration\n\n### Firmware via web interface\n\nSwitch between BLE and Wi-Fi modes by pressing the **Boot** button on the module.\n\nIn Wi-Fi mode, connect to the **BLE Telemetry Lite** access point using the password: **12345678**.\nThe web interface is accessible at [http://192.168.4.1](http://192.168.4.1).\n\n\u003cimg src=\"https://github.com/BushlanovDev/ble-telemetry-lite/blob/main/images/web-interface.png?raw=true\" alt=\"Web Interface\" title=\"Web Interface\" /\u003e\n\n### Firmware via Flash Download Tool\n\nDownload [Flash Download Tool](https://docs.espressif.com/projects/esp-test-tools/en/latest/esp32c3/production_stage/tools/flash_download_tool.html), set the settings as shown in the screenshot and don't forget to specify your COM port.\n\n\u003cimg src=\"https://github.com/BushlanovDev/ble-telemetry-lite/blob/main/images/flasher-tool.png?raw=true\" alt=\"Flash Download Tool\" /\u003e\n\n## License\n\nThis repository's source code is available under the [MIT License](LICENSE).\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fbushlanovdev%2Fble-telemetry-lite","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fbushlanovdev%2Fble-telemetry-lite","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fbushlanovdev%2Fble-telemetry-lite/lists"}