Description
HAPPYMODULE ELRS F4 2G4 AIO Flight Controller
The Happymodel ELRS F4 2G4 AIO Flight Controller is a compact and high-performance All-In-One (AIO) board designed for micro drones. It integrates an F4 flight controller, 2.4GHz ExpressLRS receiver, and 12A 4-in-1 ESC, making it a powerful choice for ultralight FPV drones. Built for efficiency, it offers seamless high-speed data transmission with low latency, enhancing drone control and maneuverability. This lightweight yet robust unit is ideal for whoop-style FPV racing drones, ensuring optimal performance with minimal hardware complexity. The onboard ExpressLRS 2.4GHz receiver provides long-range, ultra-low-latency communication, making it one of the best choices for FPV enthusiasts..
Features Table
Feature |
Specification |
|---|---|
| Processor | STM32F411 (F4) |
| ESC | 4-in-1 12A BLHeli_S |
| Receiver | Built-in 2.4GHz ExpressLRS |
| Gyro Sensor | BMI270 |
| BEC Output | 5V/1A |
| Firmware | Betaflight & ELRS Configurable |
| Input Voltage | 1S-2S LiPo Support |
| Weight | ~5g |
| Motor Connectors | Plug & Play (Compatible with Whoop drones) |
Includes
When you purchase the Happymodel ELRS F4 2G4 AIO Flight Controller, you get the following items:
1x Happymodel ELRS F4 2G4 AIO Flight Controller
4x Rubber dampers for vibration absorption
1x Power cable for easy connectivity
4x Motor plug connectors for a seamless motor connection
1x Spare heat shrink tubing for protection
1x Manual/User Guide with setup instructions
FAQ'S
1. What drones are compatible with the Happymodel ELRS F4 2G4 AIO Flight Controller?
This flight controller is designed mainly for Whoop-style FPV drones and ultralight micro quads. It supports 1S-2S LiPo power setups.
2. Does it support Betaflight?
Yes, the FC comes preloaded with Betaflight firmware, and you can configure it using the Betaflight Configurator.
3. Is the built-in ExpressLRS receiver compatible with all ELRS transmitters?
Yes, the 2.4GHz ExpressLRS receiver is compatible with any ExpressLRS 2.4GHz transmitter module. Ensure both TX and RX have matching firmware versions.
4. Can I use an external receiver with this flight controller?
While it has a built-in ExpressLRS receiver, you can connect an external receiver via the UART interface if needed.
5. What motors can I use with this flight controller?
It supports brushless motors with a 1.0mm JST-PH connector, making it ideal for TinyWhoop and Toothpick drones.
6. How do I bind the built-in ELRS receiver?
Put the FC into binding mode using the Betaflight CLI (set expresslrs_uid = 0), power cycle, and bind it to your ELRS transmitter.
7. What voltage does it support?
This FC supports 1S (3.7V) to 2S (7.4V) LiPo batteries.
8. Does it come with onboard OSD?
Yes, it features Betaflight OSD support, allowing in-flight telemetry display on FPV goggles.
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