ELRS Setup End-to-End

ELRS Setup End-to-End

ExpressLRS is the modern standard for long-range, low-latency control. Here's the short version.

Step 1 — Match firmware versions

The TX module and RX must run the same major version. Flash both before binding.

Step 2 — Bind phrase

Set the same bind phrase in TX Lua and RX firmware. No need for a button bind.

Step 3 — Receiver wiring

Just two signal wires + 5V + GND. Connect to a UART RX pin (SBUS not used).

Step 4 — Betaflight setup

• Receiver tab: Serial-based, CRSF protocol
• Set the UART, save, reboot
• Check channel mapping — defaults usually work

Step 5 — Telemetry

Telemetry is bidirectional out of the box. Configure your radio to display LQ, RSSI, and battery voltage.

Step 6 — Failsafe

In Betaflight Failsafe tab, set Stage 2 to Drop. Practice flying near a tree on purpose to verify it works.