The HelloRadioSky V15 Ultra is more than a radio. It’s a full bench lab built into an EdgeTX transmitter. Alongside a 4.3″ colour touchscreen, RDC metal gimbals and an H7 processor, the V15 adds a dedicated EXT test port and HRS Tools firmware so you can detect receiver protocols, view waveforms, test servos and spin up ESCs straight from your radio. Add a 1-6S cell meter and 20W PD fast charging with live power readout, and it covers most of the tools you’d normally carry to the bench or the field.

HelloRadioSky V15 Ultra ELRS Radio Transmitter

The HelloRadioSky V15 Ultra is more than a radio. It’s a full bench lab built into an EdgeTX transmitter. Alongside a 4.3″ colour touchscreen, RDC metal gimbals and an H7 processor, the V15 adds a dedicated EXT test port and HRS Tools firmware so you can detect receiver protocols, view waveforms, test servos and spin up ESCs straight from your radio. Add a 1-6S cell meter and 20W PD fast charging with live power readout, and it covers most of the tools you’d normally carry to the bench or the field.

Features

• 4.3″ IPS colour touchscreen running EdgeTX ColorLCD
• RDC metal gimbals for a smooth, precise feel
• H7 processor
• Dual-band antennas and translucent body
• EXT multi-function test port (GND / +5V / SIG) with HRS Tools built in
• Auto Measure: automatically detects PWM, PPM, SBUS, CRSF/ELRS, SUMD, DJI RS and MAVLink, then opens the matching live readout
• Pulse Scope: digital waveform view showing pulse width, period, duty cycle and edge rate
• Servo Tester: Standard, Wide, Digital and Heli servo types with Manual, Auto sweep and Stick modes
• DShot Tester: DShot150 and DShot300 output with ARM gating, throttle control and beep commands
• 1-6S Battery Meter: per-cell voltage bars, pack voltage, SOC and cell imbalance (dV) via balance lead
• 20W USB-C PD fast charging with live voltage, current, wattage and SOC display
• SIG overvoltage protection: tests are blocked if the signal line is above 5V
• Approx. 1A overcurrent cut-off on the +5V output
• Trainer master support: locked receiver channels (CH1-8) can feed trainer input
• Bilingual firmware (English and Chinese), flashed via simple UF2 drag-and-drop

Specifications

• Brand: HelloRadioSky
• Model: V15 Ultra
• Firmware: EdgeTX (HelloRadioSky V15 2.12)
• Protocol: ExpressLRS
• Processor: H7
• Display: 4.3″ IPS colour touchscreen
• Gimbals: RDC metal
• Charging: USB-C PD, up to 20W
• EXT Port Pinout: 1 = GND, 2 = +5V (approx. 1A protected), 3 = SIG (5V max)
• Protocol Decode: PWM, PPM, SBUS, CRSF/ELRS, SUMD, DJI RS, MAVLink (up to 16 channels)
• Scope Timebase: 100µs to 50ms
• Servo Output: approx. 50 to 560Hz
• ESC Output: DShot150 / DShot300
• Battery Meter: 1-6S per-cell

Includes

• 1x HelloRadioSky V15 Ultra Radio Transmitter