HGLRC SPECTER 15A ELRS AIO 2–4S 4-in-1 Flight Controller for FPV Drones

HGLRC SPECTER 15A ELRS AIO 2–4S 4-in-1 Flight Controller for FPV Drones

Product description

The HGLRC SPECTER 15A ELRS AIO Flight Controller is an ultralight all-in-one solution for modern FPV drones. Equipped with a powerful STM32F411 processor, a proven MPU6000 gyroscope, an integrated ExpressLRS 2.4GHz UART receiver, and a 15A 4-in-1 ESC, this board combines a flight controller, ESC, and RC receiver on a single board.

Unlike SPI-based ELRS solutions, HGLRC relies on a full-featured UART ExpressLRS receiver, which offers higher signal stability, greater range, and lower latency. This makes the board ideal for toothpick drones, whoops, and ultralight freestyle builds where every gram counts.

The pre-installed Bluejay ESC firmware ensures exceptionally smooth motor performance and high efficiency. With support for 2S to 4S LiPo batteries, an integrated 8MB black box, OSD, and buzzer and LED support, the SPECTER 15A AIO offers everything needed for modern FPV builds.

Weighing just 6.9 grams, this flight controller is perfect for 75mm and 85mm Whoops, 2–3-inch toothpick drones, and lightweight freestyle and indoor models.

Features

• All-in-One Flight Controller with integrated 15A 4-in-1 ESC
• Powerful STM32F411 processor
• Proven MPU6000 gyroscope for precise flight performance
• Integrated ExpressLRS 2.4GHz UART receiver
• Significantly more stable connection than SPI receivers
• Bluejay ESC firmware pre-installed
• Supports 2S to 4S LiPo batteries
• Built-in 8MB black box
• Betaflight OSD support
• LED and buzzer connections available
• Direct motor connections and large solder pads
• IPEX connector including a 2.4 GHz T-antenna
• Ideal for Whoops, toothpick, and micro FPV drones

Technical Specifications

Flight Controller

• Model: HGLRC SPECTER 15A AIO
• MCU: STM32F411
• Gyroscope: MPU6000
• Firmware Target: ZEUSF4EVO
• Blackbox: 8 MB
• OSD: Yes
• LED: Yes
• Buzzer: Yes
• UART: UART3

Integrated receiver

• Type: ExpressLRS UART
• Frequency: 2.4 GHz
• Connector: IPEX
• Antenna: 2.4 GHz T-antenna

ESC

• Integrated 4-in-1 ESC
• Continuous current: 15 A
• Peak current: 18 A (10 seconds)
• Firmware: Bluejay (Q-H-50)
• Supported protocols:
  • DShot300
  • DShot600
  • Oneshot
  • Multishot

Power Supply

• Input voltage: 2–4S LiPo (7.4–14.8 V)
• BEC: 5V / 2A

Dimensions

• Size: 42.5 × 42.5 mm
• Mounting: 25.5 × 25.5 mm (M2)
• Weight: 6.9 g