ExpressLRS 4.1 & Gemini X: True MIMO Diversity and Adaptive Data Rates Take Over RC
With dynamic power hysteresis refinements, elimination of spurious telemetry loss alerts, and concurrent dual-frequency diversity, open-source radio firmware cements its total lead.
- ExpressLRS 4.1 Dynamic Power: Eliminates erratic packet drops with refined power hysteresis algorithms, scaling seamlessly between 10mW and 1000mW based on signal-to-noise margins.
- Gemini X Concurrent MIMO: Transmits synchronized control packets concurrently over both 2.4GHz and 900MHz spectrums, creating link redundancy immune to Wi-Fi saturation.
- Betaflight 2026.6 Release: Replaces legacy configurator code with Vue 3 / NuxtUI, mobile DFU flashing via WebUSB, and 30-waypoint autonomous navigation.
- AM32 48kHz ESC Firmware: High-frequency sinusoidal startup and bidirectional DShot600 telemetry deliver jitter-free RPM notch filtering.
The transition from closed commercial RC protocols to open-source architectures is complete. When ExpressLRS rolled out version 4.0, it made the bold move of breaking backwards compatibility to strip legacy STM32 code and unlock true MIMO transmission.
The arrival of ExpressLRS 4.1 in late August 2026 polishes that foundation into peak competitive form. Pilots who experienced occasional false 'Telemetry Lost' voice alerts during low-altitude proximity maneuvers report that the revised dynamic power hysteresis algorithms in 4.1 completely eliminate erratic telemetry dropouts.
“We don't just flash firmware anymore. We are orchestrating an open-source flight stack that communicates over CRSF, compiles in the cloud, and executes 8kHz PID loops with zero jitter.”
Betaflight 2026.6: NuxtUI Web Configurator & 30 Waypoints Autopilot
With community-driven development accelerating over the past month, Betaflight 2026.6 delivers mobile WebUSB DFU flashing, 30 GPS waypoints, and optical flow indoor hold.
