expresslrs expresslrsExpressLRS V3.1.1

[WaF Bot]

Getting Started 3.0 Documentation

The important stuff

• Arming must be on AUX1 for safety and feature reasons, having this fixed allows us to maintain small packet sizes and deliver better aux channel options
• Be sure to flash both the TX and RX.
• Lua script MUST be updated to elrsV3.lua and is backwards compatible with 2.x. Get it here: Lua

What happened to V3.1.0?

V3.1.0 was pulled as there was a serious upgrade issue for some users on Windows systems. Their TX module or ESP32-based receivers appeared soft-bricked, as they would enter wifi hardware-configuration mode because of an obscure bug in the platformio ESP32 base system which left the flash chip unable to be read by the firmware.
There were also a couple of other bugs found during testing that we really wanted to get fixed.

Compatibility

This is a minor version release (new features, targets and bug-fixes only) and is compatible with V3.X.

Who should update from V3.0.0?

All users that require LBT (i.e. the EU/CE regulatory domain for 2.4GHz)

New Targets

• Transmitter Modules
  • EMAX 2.4GHz Nano and 900MHz Nano
  • Radiomaster 2.4GHz Ranger, Ranger Micro and Ranger Nano
• Receivers
  • BETAFPV 5A AIO with serial ELRS

New Features

• Customisable TX button actions (for modules that have buttons) #1761
• Multiple RGB led support (individually assignable to buttons, boot animations and status indication) #1837
• PWM fan support for TX modules #1760
• Betaflight passthrough support for ESP32 receivers (BETAFPV SuperD and Happymodel Dual) #1806
• Add RSSI_2 for true diversity receivers #1876
• Receiver SPL06 barometer/vario support #1892
• Add PWM mapping and failsafe setup to PWM receivers #1763
• Scale the PWM failsafe time with packet rate #1930
• Support for brushed motor 10kHz duty-cycle mode in PWM settings #1850
• Allow config of initial packet rate on RXs for faster connections #1757

Fixes

• LBT telemetry lost/recovered loop fixed (for EU/CE regions) #1834
• Better OTX sync, more reliable locking on packet update frequency #1867
• Fix Foxeer PA RX not being configured when built #1886
• Fix QuadKopters Nano RX #1922
• Fix network credentials being lost on first setup then setting passphrase #1933

v3.1.1 fixes

• Fix soft-bricked windows builds #1961
• Fix error when selecting receiver page in Lua #1962, #1974, #1980
• Fix module configuration upgrade #1963, #1964, #1976
• Fix Betaflight passthrough for receivers with PA/LNA and/or RGB #1975
• Correct antenna labels in diversity RX Lua #1978
• Add 10, 25 & 50mW settings for ESP-based 900MHz receivers #1980
• ... and many, many more

Known Issues

• On performing WiFi updates to some TX modules you may get a “Bad Size Given” error. If you get this error, it can be remedied by either flashing via UART, or flashing the repartitioner from https://github.com/ExpressLRS/repartitioner/releases/download/1.0/repartitioner.bin then reflashing via wifi after it has completed. For more information about the problem see https://github.com/ExpressLRS/repartitioner/

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