Happymodel CrazyF411 Pro 20A AIO with ELRS 2.4 RX
$104.95
The CrazyF411 ELRS flight controller includes a built-in UART 2.4GHz ExpressLRS receiver and a 20A Blheli_s ESC (with Bluejay firmware pre-installed) suitable for 2-4S setups.
In stock
Description
Happymodel CrazyF411 Pro 20A AIO with ELRS 2.4 RX
The CrazyF411 ELRS flight controller includes a built-in UART 2.4GHz ExpressLRS receiver and a 20A Blheli_s ESC (with Bluejay firmware pre-installed) suitable for 2-4S setups. Its design, featuring larger Mosfets, supports up to 20A currents, making it ideal for 2-4S toothpick drones or long-range FPV drones. The 2.4GHz ExpressLRS receiver utilizes the SX1280 radio frequency chip for superior sensitivity, high packet rates, and low latency, meeting the needs of both race and freestyle pilots.
The integrated ELRS receiver communicates via UART with the MCU, similar to the Happymodel EP1, and supports firmware updates via Betaflight pass-through or WiFi for convenience. The pre-installed firmware version is ELRS V3.0.1. This flight controller is designed to replace the ELRS X1 flight controller in Crux35 drones.
Specifications
Flight Controller
- MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
- Sensor: ICM42688P or BMI270 (SPI Control)
- Mount pattern: 25.5×25.5 M2
- Size:32*28*9mm
- Power supply: 2-4S Lipo battery
- Built-in 20A Blheli_s ESC each
- Built-in Betaflight OSD(SPI Control)
- Built-in UART ExpressLRS 2.4GHz receiver
- Built-in 5V 1.5A BEC
- Flight controller firmware target: CRAZYBEEF4DX
ESC
- MCU upgraded to EFM8BB21
- Power supply: 2-4S LiPo/LiPo HV (7v/17v)
- Currents: 20A continuous peak 25A (5 seconds)
- Support BLHeliSuite programmable
- Factory firmware: Bluejay 0.18.1Firmware target: F_H_40_48_v0.18.1
- Default protocol: DSHOT150/DSHOT300/DSHOT600
ELRS
- Packet Rate option: 25Hz/50Hz/150Hz/250Hz/500Hz
- RF Frequency: 2.4GHzAntenna plug: IPEX
- Telemetry output Power: <12dBm
- Receiver protocol: CRSF
- Default firmware version: ExpressLRS V3.0.1
- Firmware target:HappyModel EP1/2 2400 RX
Onboard voltage and Amperage meters settings
- Voltage meter scale setting 110
- Amperage meter scale setting 470
Binding Procedure
- Plug a USB into the flight controller and wait for the green LED to turn off. Then, unplug the USB and repeat this process twice. On the third power-up, the green LED will flash twice indicating the receiver is in binding mode.
- Ensure your ExpressLRS transmitter module firmware is version 3.x.x. Access the ExpressLRS.lua script from the “TOOLS” menu on your transmitter, and select [Bind] to start the binding process with the onboard ExpressLRS receiver.
- The green LED will blink slowly and then become solid, indicating a successful binding. If the green LED continues to flash twice, switch the Model Match setting from “off” to “on” or vice versa.
Receiver LED status
- Solid Green: Bind successful/RC link established.
- Double-flash Green: Bind mode activated.
- Slow flash Green: No RC signal from transmitter.
- Fast continuous flash Green: ExpressLRS WiFi enabled.
Bind successful
Bind mode
No RC Input
Wifi mod
Notes:
- The “ET” and “ER” pads are designated for communication with the ESP8285. To upgrade the firmware of the onboard UART ELRS receiver, connect the “TX” terminal of your FTDI tool to the “ET” pad, and the “RX” terminal to the “ER” pad. Prior to this process, ensure that the “+5V” and “E5” pads are short-circuited.
- Special thanks to our team pilot, “Jiggy,” for providing the bind instructions through the Alternative-Binding-Method-for-UART-Based-ELRS-RX
Additional information
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