GEPRC STABLE 20A Toothpick Stack AIO

The GEPRC GEP-20A-F4 AIO is a high-performance All-in-One flight controller and ESC combination designed specifically for micro FPV Toothpick builds. Compared to its predecessor (the GEP-12A-F4), the upgraded 20A version increases current capacity to 20A continuous and 30A burst while expanding voltage compatibility up to 4S LiPo. This extra power makes it the ideal match for 12XX to 15XX series brushless motors swinging 3-inch to 4-inch propellers.

The stack comes paired with the GEP-VTX200-Whoop video transmitter, engineered for lightweight Whoop and Toothpick builds to deliver solid signal performance without adding unnecessary bulk.

Features

High-performance STM32F411 core coupled with a proven, ultra-stable MPU6000 gyro

Integrated 4-in-1 ESC supporting up to 20A continuous current and high-efficiency 4S power setups

Saves crucial grams with an ultra-lightweight, all-in-one footprint tailored for high-speed micro platforms

Direct interface capability for various micro-receiver architectures including ExpressLRS, TBS Crossfire, and SBUS

Bundled with a stackable, 48-channel 200mW video transmitter featuring smart audio control

GEP-20A-F4 AIO Flight Controller & ESC Specifications

MCU: STM32F411

IMU: MPU6000 Gyro/Accelerometer (SPI)

Firmware Target: GEPRCF411

OSD: Betaflight OSD with AT7456E chip

Barometer: None

Current Monitoring: Onboard sensor supported (Scale value: 210)

Buzzer & LED Pads: Supported

USB Interface: MicroUSB

BEC Output: 5V@1A

Power Filtering: Integrated LC filter

ESC MCU: BB21F16G

Continuous Current: 20A

Burst Current: 30A

Input Voltage: 2-4S LiPo

ESC Protocols Supported: Dshot600, Multishot, Oneshot

Dimensions: 32x32mm

Mounting Pattern: 26.5×26.5mm with M2 holes

GEP-VTX200-Whoop VTX Specifications

Model: GEP-VTX200-Whoop

Output Power: Pit Mode / 25mW / 100mW / 200mW (Switchable)

Channels: 48CH (including Raceband)

Frequency: 5.8GHz

Input Voltage: 4.5V – 5.3V

Current Consumption: 300mA (typical at full power)

Antenna Interface: U.FL (RG178 cable)

Video Format: PAL / NTSC automatic detection

Control Protocol: IRC Tramp

Weight: 2g (excluding antenna)

Receiver Compatibility

Frsky XM / XM+ / R-XSR

Futaba systems

DSM / DSMX

FlySky

TBS Crossfire / ExpressLRS (via UART)

AC900

General SBUS/IBUS/serial receivers

Package Contents

1 x GEP-20A-F4 AIO Board

1 x GEP-VTX200-Whoop VTX Board

1 x Pre-soldered power lead

8 x Mounting screws

4 x Soft silicone vibration-damping grommets