SKU: 8452770009

HappyModel CrazyF411 ELRS AIO 4in1 Flight controller

Sale price$53.99 Regular price$59.99
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Description

HappyModel CrazyF411 ELRS AIO 4in1 Flight controllerThe CrazyF411 ELRS flight controller comes with integrated UART 2. 4GHz ExpressLRS receiver and 20A Blheli_s ESC(Bluejay firmware pre installed) which could support 2 4s. Bigger Mosfet could support high to 20A currents would be better for 2 4S toothpick drone or long range FPV drone. And because the 2. 4GHz ExpressLRS receiver is equipped with the SX1280 radio frequency chip with high sensitivity, high packet rate and low latency, this flight

 

 

The CrazyF411 ELRS flight controller comes with integrated UART 2.4GHz ExpressLRS receiver and 20A Blheli_s ESC(Bluejay firmware pre-installed) which could support 2-4s. Bigger Mosfet could support high to 20A currents would be better for 2-4S toothpick drone or long range FPV drone. And because the 2.4GHz ExpressLRS receiver is equipped with the SX1280 radio frequency chip with high sensitivity, high packet rate and low latency, this flight controller is the one that all Race/Freestyle pilots needed. The built-in ELRS receiver is UART communication with MCU, it’s the same like Happymodel EP1 which you can update firmware by betaflight pass-through or WIFI, very simple. The default firmware is ELRS V3.0.1. This flight controller would be used for Crux35 to instead ELRS X1 flight controller.

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
Onboard 4in1 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
Onboard UART ExpressLRS 2.4GHz Receiver 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
Onboard voltage and Amperage meters  settings Voltage meter scale setting 110

 

Amperage meter scale setting 470

Binding procedure:

  1. Supply power to the flight controller by plug USB, wait until the green LED on the FC is off, immediately turn off the power, and then repeat again the above steps. When the FC is powered on for the third time, the green LED light will start to double-flash, which means that the RX enters the binding mode
  2. Please make sure your ExpressLRS tx module firmware is v3.x.x. And go to ExpressLRS.lua from “TOOLS” menu of your radio transmitter. Then hit [Bind] to binding with the onboard ExpressLRS receiver. The green LED should blinking slowly first then turn to solid, that means binding was successfully. If the green led still keep double flash after binding ,please change Model Match tab value from “off” to “on” or from “on” to “off”

Receiver LED status meanings:

Green LED solid means bind successful or RC link established; Green LED double-flash means get into bind mode; Green LED flash slowly means no RC signal input from TX module; Green LED continuous flash fast means ExpressLRS wifi enabled.

 

Bind successful

 

 

Bind mode

 

 

No RC Input

 

 

Wifi mode

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 8452770009

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4.6 ★★★★★
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Sugarkat
Cuba, US
★★★★★ 5
She goes through things pretty quick, and I know she could have destroyed ...
Size: Large (Pack of 1), Style: Stick Large
My dog is a heavy chewer, and player (Doberman). I got one of these when she was a puppy and about 2 years later it broke in half from periodic chewing and tugging. It was one of her favorites and I was impressed it lasted so long so I ordered another one. She goes through things pretty quick, and I know she could have destroyed this fast as well, but it probably helped that she had other things she was supposed to chew on instead. We never encouraged her to chew this, but she loves bringing it over so we can throw it, or tug on it. Never had any issues with the squeaker (until the first one broke in half after 2 years). I would recommend it, but try to encourage it for play and not for chewing. It is flexible and durable and handles a 70lb Doberman dangling from it periodically.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 19, 2016
G
Verified Purchase
Gen
Bozeman, US
★★★★★ 4
Fun!
Size: Large (Pack of 1), Style: Stick Large
This was nice and fun for my dogs. Squeegee could have last a little longer. It lasted about 2 weeks until they were bored of it but I think that’s more of a my dog issue.
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Reviewed in the United States on June 10, 2025
L
Verified Purchase
luvAmazon?
Pawtucket, US
★★★★★ 5
High quality, durable, loved by my chewer *
Size: Medium (Pack of 1), Style: Stick Medium
Excellent chew bone Toy for aggressive chewer. I've purchased this same brand bone/ Toy for several years. One lasts at least 1-2 years ( if it doesn't get run over by a lawn mower). Lol. I usually pay $8-$9 for one in retail stores. This is an excellent price at $6. Squeaker stops after a few months but my Field Spaniel dog is deaf now anyway! He loves chewing on this for his gums and when people are gathered in the same room he just starts chewing and enjoying himself in the midst of fellowship.
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Reviewed in the United States on October 31, 2024
T
Verified Purchase
Tiffany
Massapequa, US
★★★★★ 1
Not for aggressive chewers
Size: Large (Pack of 1), Style: Stick Large, Size: Large (Pack of 1), Style: Stick Large
I got this for my 95lb lab who is an aggressive chewer thinking that it looked durable and would last a while. He tore it apart within an hour and I had to throw it away.
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Reviewed in the United States on April 14, 2026
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E
New York, US
★★★★★ 3
Felt durable but it couldn’t hold up
Size: Large (Pack of 1), Style: Stick Large, Size: Large (Pack of 1), Style: Stick Large
I really thought my pet wouldn’t be able to destroy it but it’s in tiny pieces in the trash now. we played together and she was gentle I guess because she didn’t bite or tug hard at all I left her alone with it like I’ve done before but this time she broke it down in chunks. Did not have this toy for more then 24 hours.
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Reviewed in the United States on January 20, 2025

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