HelloRadioSky V12 2.4GHz ELRS EdgeTX Radio Transmitter 1000mW STM32H7 LR1121 for FPV Drones & RC Airplanes

Overview

HelloRadioSky V12 is a 2.4GHz ELRS (ExpressLRS) radio transmitter/remote controller for FPV racer drones and RC airplanes. It features a built-in ExpressLRS high-frequency module based on the LR1121 transmitter chip, runs EdgeTX, and uses an STM32H750XBH6 main control chip. A 2.4-inch TFT color screen and dual-turbo (dual-channel turbine) fan cooling are included.

Key Features

• 2.4GHz transmission frequency
• Built-in ExpressLRS high-frequency module; ELRS transmitter chip: LR1121
• Maximum TX module power: Max 1000mW
• EdgeTX software system
• 2.4-inch TFT color screen (full-color / HD full-color screen text appears in product graphics)
• Dual fan cooling (dual-turbo fans / dual-channel turbine fan)
• Hall effect joystick sensor (Hall)
• Multi-functional USB Type-C port functions indicated: Charging, Upgrade, Simulator, Data transfer
• Power supply: 2*21700 batteries (batteries not included)
• Supports USB online upgrade

Specifications

Version Comparison (from configuration instructions)

Color Options (text from product graphics)

Available in multiple colors / mix & match freely: White Red, White Purple, White Gold, Gray Gold, Gray Red, Gray Purple, Gray Black, Pink Gold, Pink Purple, Pink, Blue Red, Blue Gold, Blue Purple, Tea Gold, Tea Purple, Tea Red.

What’s Included

• 1 x HelloRadioSky V12 radio transmitter

Some package list graphics also indicate accessories such as a HelloRadioSky carrying case, USB cable, stickers/decals, lanyard, and a screw set (lanyard note: two colours are delivered at random). Package contents can vary by version/batch.

Applications

• FPV racer drone radio control (2.4GHz ELRS / ExpressLRS)
• RC airplane radio control (2.4GHz ELRS / ExpressLRS)
• Simulator use via USB Type-C (simulator function is indicated in the Type-C interface graphic)

For setup or compatibility questions (receiver channel mapping, EdgeTX use, USB upgrade), contact support@rcdrone.top or visit https://rcdrone.top/.

Details

HelloRadioSky V12 is a compact 2.4GHz ELRS radio transmitter running EdgeTX for FPV drones and RC airplanes.

Built around the LR1121 ELRS RF chip and an STM32 H7 processor, with dual-fan cooling and a full‑color display.

The built-in LR1121-based ExpressLRS module is designed for stable 2.4GHz control links.

An STM32H7 main chip provides the computing headroom for responsive menus and model control in EdgeTX.

A 2.4-inch TFT full‑color screen keeps model settings and telemetry easy to read indoors or outdoors.

Dual-turbo fans help manage heat during higher-power operation for consistent performance.

Powered by two 21700 cells (not included) for a straightforward, high-capacity battery setup.

The USB‑C port supports charging, firmware upgrades, simulator use, and data transfer.

Multiple colorways are available, with mix-and-match styling across shells and controls.

Included accessories cover day-to-day transport and setup: a carry case, USB cable, screws, and a lanyard.

Key specs at a glance: 2.4GHz ELRS (LR1121), STM32H750, EdgeTX, 2.4-inch TFT screen, and up to 1000mW TX power.

Choose between the basic V12 and the V12 CNCMAX, with differences in antenna setup and CNC metal control hardware.