RadioMaster - TX15 Radio Controller ELRS White
by RadioMaster

The RadioMaster TX15 Radio Controller ELRS (Mode 2, Frost White) is a high-performance open-source radio transmitter driven by a high-speed STM32 H7 processor. Engineered for ultra-fast EdgeTX control, rapid script execution, and seamless model switching, the TX15 features an internal LR1121 Semtech transceiver capable of operating on either 2.4GHz or Sub-G 900MHz ExpressLRS (ELRS) protocols for long-range link reliability and low latency.

Outfitted with precision V5.0 Hall-effect sensor gimbals, a 3.5-inch IPS color touchscreen (480 x 320 resolution, 262K colors, 600 nits brightness), and 4GB of integrated high-speed flash storage with external MicroSD expansion, the TX15 provides an exceptional control interface for FPV quads and fixed-wing aircraft. Additional hardware highlights include an integrated ICM-42607-C motion sensor for TiltX/TiltY gyro controls, a built-in microphone reserved for future firmware features, interchangeable shoulder switch modules, active fan cooling with aluminum heat sinks, a compact foldable antenna, and a smart balance 2S USB-C charging circuit.

Key Features

• STM32 H7 High-Performance MCU: Provides rapid computing power for smooth EdgeTX navigation, fast script execution, and instant model switching.

• LR1121 ExpressLRS Transceiver: Built-in multi-band ELRS hardware supporting 2.4GHz or Sub-G 900MHz frequencies for long-range signal stability.

• 3.5" High-Brightness Touchscreen: 480 × 320 IPS color display with 600 nits brightness ensures outdoor visibility under direct sunlight.

• V5.0 Hall Sensor Gimbals: Precision Hall-effect gimbals deliver smooth, wear-free stick feedback and consistent control resolution.

• Integrated Motion Sensor: Onboard ICM-42607-C gyro enables TiltX/TiltY motion control for logic switches, camera pan/tilt, and telemetry callouts.

• 4GB Built-in Flash Memory: Generous onboard flash storage for EdgeTX models, audio files, and scripts, expandable via external MicroSD.

• Interchangeable Shoulder Switches: Includes customizable switch modules allowing pilots to swap default shoulder buttons with momentary or 2-position latching toggles.

• Active Cooling & Foldable Antenna: Low-noise internal cooling fan and aluminum heat sink maintain stable temperatures, paired with a folding antenna for compact transport.

Technical Specifications

• Brand / Manufacturer: RadioMaster

• Model Identifier: TX15 Radio Controller ELRS (Mode 2)

• Manufacturer SKU / Part Number: HP0157.0110-WHT

• Color Finish: Frost White (Also produced in Iron Grey, Iceberg Blue, Mint Mist, Lemon Twist Yellow, Hot Pink)

• Processor: High-Performance STM32 H7 Processor

• Operating System / Firmware: EdgeTX

• Display: 3.5-inch IPS Touchscreen (480 x 320 Resolution, 262K Colors, 600 Nits Brightness)

• Internal RF Transceiver: Semtech LR1121 (ExpressLRS 2.4GHz / Sub-G 900MHz)

• Supported Protocol: ExpressLRS (ELRS)

• Antenna Configuration: Compact Foldable Antenna (2dBi Gain, Adjustable Transmit Power)

• Gimbals: V5.0 Hall-Effect Sensor Gimbals

• Motion Sensor: Built-in Gyroscope (ICM-42607-C / TiltX & TiltY functions)

• Audio Hardware: Integrated Microphone (Reserved for future expansion)

• Cooling System: Low-noise active cooling fan with aluminum heat sink

• Onboard Storage: 4GB Built-in Flash Memory

• External Storage: MicroSD Card Slot (Supports up to 32GB / FAT32; inserting card disables onboard flash)

• External Expansion: JR-Compatible Module Bay

• Operating Voltage: 6.6V – 8.4V DC (2S LiPo / Li-Ion)

• Max Current Draw: 875mA @ maximum output power

• Battery Charging: USB-C Smart Balance Charging Circuit

• Firmware Upgrade Method: USB-C (UF2)

• Dimensions: 178 mm x 168 mm x 81 mm

• Net Weight: 605 grams (without battery)

What Is Included

• (1) RadioMaster TX15 ELRS Radio Controller (Mode 2 - Frost White)

• (1) Signature Zippered Carry Case

• (1) Short 2-Position Latching Shoulder Toggle Switch Assembly

• (1) Short 2-Position Momentary Shoulder Toggle Switch Assembly

• (1) 18650 Battery Tray

• (1) USB-C Data & Charging Cable

• (1) Screen Protector

• (1) 1.5mm Hex Wrench

• (4) High-Tension Gimbal Springs

• (2) Gimbal Stick Set Screws

• (1) Decal / Sticker Set

• (1) User Manual & Documentation

Needed to Complete

• (2) 3.7V 18650 Lithium-Ion Cells OR (1) 2S 7.4V LiPo / 21700 Battery Pack

• (1) Compatible ExpressLRS 2.4GHz or 900MHz Receiver