SKU: 83734957447

Happymodel Crazybee F4 V3.1 2-4S 4in1 12A AIO Flight Controller - SPI Frsky

Sale price$29.03 Regular price$32.26
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

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Description

Happymodel Crazybee F4 V3.1 2-4S 4in1 12A AIO Flight Controller - SPI FrskyThe Crazybee F4 V3. 1 Flight Controller comes pre soldered with a Frsky SPI receiver and XT30 power wires. This flight controller is the default FC for TheFPFlea and the Happymodel Cine8 85mm Brushless CineWhoop, but great for other ultra light micro drones that need space and weight savings. Build your micro drone with this AIO flight controller and solve three things at once! Just add a VTX like the Happymodel Diamond VTX and your stack is good to

The Crazybee F4 V3.1 Flight Controller comes pre-soldered with a Frsky SPI receiver and XT30 power wires. This flight controller is the default FC for TheFPFlea and the Happymodel Cine8 85mm Brushless CineWhoop, but great for other ultra-light micro drones that need space and weight savings.

Build your micro drone with this AIO flight controller and solve three things at once!

Just add a VTX like the Happymodel Diamond VTX and your stack is good to go!

Features

  • No soldering work needed
  • 5pin VTX wires... simply plug and play, and you are ready to go!
  • XT30 Power Wires
  • Built-In 12A 4-in1 ESC
  • Built-In FrSky SPI Reciever

Specifications

Crazybee F4 V3.1 Flight Controller

  • (Frsky SPI RX version) CRAZYBEEF4 V3.1 FC Firmware target: CrazybeeF4FR
  • (External TBS CRSF NANO version) CRAZYBEEF4 V3.1 FC Firmware target: CrazybeeF4FR MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
  • Sensor: MPU-6000(SPI connection)
  • Board Size: 28.5x28.5mm
  • Mounting Pattern: 25.5x25.5mm
  • Power Supply: 2-4S Battery input (DC 7V-17V)
  • Built-in Betaflight OSD(SPI Control)
  • Built-in 5V 1A BEC

Onboard 12A 4in1 ESC

  • MCU Upgraded to EFM8BB21
  • Power Supply: 2-4S LiPo/LiPo HV (7v/17v)
  • Con. Current: 12A
  • Burst Current: 15A (5 seconds)
  • Support BLHeliSuite programmable
  • Factory firmware: F_H_40_REV16_8.HEX
  • Default protocol: DSHOT600

Onboard Frsky SPI D8 Receiver Version

  • CC2500 Hardware
  • Compatible with FrskyD FrskyX Frsky_X_LBT SFHSS REDPINE protocol
  • Channels: 8ch
  • Failsafe support
  • Diversity 2.4G receiver system
  • No ground interference: above 300meter

Includes

  • 1x Crazybee F4 V3.1 AIO Flight Controller
  • 4x Screws
  • 4x Damping Balls
  • 8x Spacers
  • 1x Pre-Soldered Connecting Wires
  • 1x 2.4 Receiving Antenna

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: 83734957447

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Melissa Strand
Houston, US
★★★★★ 5
Finally, a great pillow!
Size: Standard (Mid Loft), Number of Items: 1
Finally! After so much wasted money on sooooo many pillows, I come across this beauty! This pillow is amazing! I got the medium one, and it’s so perfect. Soft, yet supportive. I’m still surprised at how much I love it!
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Reviewed in the United States on April 2, 2026
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Rene Bechard
Birmingham, US
★★★★★ 5
LOVE IT !
Size: Queen (Mid Loft), Number of Items: 1
I love this pillow. It is just right, firm enough yet soft. My head sinks in and is very comfortable. When I lift my head, the pillow bounces right back into shape. If it lasts, I will buy my family each a pillow as it is wonderful. I woke up with zero neck pain as I typically did when using a standard foam pillow. There is a very light scent yet when I covered the pillow with a protector casing and then a cotton case, there was zero scent. I highly recommend. Especially when compared to the comfort of a very expensive latex pillow my husband uses.
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Reviewed in the United States on January 7, 2026
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I'maGryffindor
Houston, US
★★★★★ 5
Memory foam could never
Size: Queen (Mid Loft), Number of Items: 1
Wonderfully firm, yet responsive and lightweight. Like a marshmallow for your head and neck. I'm a side sleeper, but this could be great for anyone needing firm but still very soft and comfortable support. Memory foam has nothing on actual latex.
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Reviewed in the United States on January 5, 2026
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Just a guy
Alexandria, US
★★★★★ 5
Awesome pillow!
Size: Queen (Mid Loft), Number of Items: 1
Great pillow! I have two latex pillows now and I don't think I'll ever go back to standard pillows.
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Reviewed in the United States on April 27, 2026
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Rachel c.
Alexandria, US
★★★★★ 5
Expensive
Size: Queen (Mid Loft), Number of Items: 1
Very comfortable, smell goes away
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Reviewed in the United States on May 21, 2026

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