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Glossary

Below you can find a list of terms you might not be sure about, as well as some common abbreviations:

  • CRSF: TBS Crossfire, more specifialy in our case most often refering to the communication protocol between TX and TX module and RX and FC respectively
  • OTX: OpenTX
  • FW: Firmware
  • BL: Bootloader, loads the FW
  • S.Port: SmartPort, sometimes referred to as sport. FrSky "telemetry" protocol. The S.Port also gets used for updating FrSky receivers.
  • OTA: Update your device Over The Air (wifi)
  • MCU: Micro Controller Unit, generally denotes an embedded system controller as opposed to big iron cpu
  • OSD: On Screen Display, refer to this page for instructions for setup in BF
  • LQ: Link Quality, percentage of expected packets received. Our preferred method of measuring the quality of the control link
  • RSSI dBm: Measure of power level measured in dBm. Basically, how strong the signal being received is
  • RSSI: Received Signal Strength Indicator, "arbitrary" scaled version of RSSI dBm or LQ. Signal Health: LQI and RSSI Explained
  • Lua: Means "Moon" in Portuguese. As such, Lua is the correct way to write and not all uppercase. The ExpressLRS Lua script can be installed on a OpenTX radio, to easily alter TX parameters like Packet rate, Telemetry ratio and Output power. But also shows if the radio (OpenTX) is communicating correctly with the module. ( e.g. 0:50, 0:150, 0:200 and so on.)

To be continued.