ExpressLRS V1.2.1 Release Notes

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 expresslrs.org/quick-start/

Enhancements

• NA

Bugfixes

• Added ES900RX upload via UART target (#1035)
• Update CRSF.cpp, replaced duplex_set_tx with noInterrupt, fixes intermittent crash on startup (#1043)
• Wrong firmware version displayed on web update (#1097)

Hardware Targets:

2.4GHz

• NA

915-868MHz

• NA

A note on versioning

The versioning scheme chosen by the ExpressLRS devs is based on the semantic versioning scheme. https://semver.org/

Where a version is defined as “major.minor.patch” major = major new feature and/or incompatible changes minor = minor features or enhancements and/or new targets patch = bug-fixes