SKU: 11750239726

Happymodel CrossF4 ELRS AIO Flight Controller

Sale price$29.00 Regular price$32.22
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Ships within 48 hours · Estimated delivery Oct 29 - Nov 3

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Description

Happymodel CrossF4 ELRS AIO Flight ControllerIntroducing the CrossF4 ELRS 1 2S Flight Controller: The Ultimate Tinywhoop Upgrade! Attention, pilots of the micro verse! Prepare for liftoff with the CrossF4 ELRS 1 2S Flight Controller, designed exclusively for your Tinywhoop. It's packed with cutting edge features, and it's as nimble as a hummingbird on a sugar high. If you've been looking for the perfect upgrade for your mini marvel, search no more! 5 Key Product Highlights Advanced BMI270 IMU:

Introducing the CrossF4 ELRS 1-2S Flight Controller: The Ultimate Tinywhoop Upgrade! 🚀

Attention, pilots of the micro-verse! Prepare for liftoff with the CrossF4 ELRS 1-2S Flight Controller, designed exclusively for your Tinywhoop. It's packed with cutting-edge features, and it's as nimble as a hummingbird on a sugar high. If you've been looking for the perfect upgrade for your mini marvel, search no more!

🌟 5 Key Product Highlights 🌟

  1. Advanced BMI270 IMU: Enjoy ultra-stable flight with this state-of-the-art sensor.
  2. UART ExpressLRS Receiver: Say farewell to range limits with the power of ExpressLRS 2.4GHz technology.
  3. Betaflight OSD: Monitor your flight data in real-time for total control over your Tinywhoop.
  4. Blheli_S 4in1 ESC: Experience precise throttle response and improved efficiency with Dshot300 compatibility.
  5. STM32F411CEU6 MCU: Harness the power of this 100MHz, 512K FLASH microcontroller for lightning-fast processing.

🤏Don't let the size fool you! This little beast is ready to rock your Tinywhoop world. Outfitted with a powerful STM32F411CEU6 MCU (100MHz, 512K FLASH) and a high-precision BMI270 IMU, it'll take your micro-flight experience to new heights.

💡Imagine the freedom of flying further and faster with a UART ExpressLRS 2.4GHz receiver. Upgrade your ExpressLRS TX module to V3.X, and you'll be able to bind this beauty just like Happymodel EP1/EP2 receivers. The built-in 5A Blheli_S 4in1 ESC is Dshot300 ready, giving you precise control over your flight.

👑Want to become the Tinywhoop king or queen? With built-in Betaflight OSD, voltage detection, and current sensor, you'll have all the data you need to master your flight. And with 16Mb of onboard flash for Blackbox, you'll be able to analyze and improve your performance like never before.

🎥Time to level up, pilot! Grab the CrossF4 ELRS 1-2S Flight Controller today and unleash the full potential of your Tinywhoop. Remember: with great power comes great responsibility... and endless fun! 🎉

P.S. To enable the onboard blackbox, simply enter the commands provided in the original description below into CLI, and you'll be good to go!

set blackbox_device = SPIFLASH
set flash_spi_bus = 2
resource FLASH_CS 1 a14
save

Don't let your Tinywhoop settle for mediocrity! Equip it with the CrossF4 ELRS 1-2S Flight Controller and watch it soar like never before. Whether you're a casual pilot or a seasoned racer, this Tinywhoop upgrade is a must-have for anyone serious about FPV drone performance. Get ready to unleash your micro-drone's full potential and own the skies with the CrossF4 ELRS 1-2S Flight Controller!

Specifications

Flight controller Firmware target: CRAZYBEEF4DX4.3.2
MCU:STM32F411CEU6 (100MHz, 512K FLASH)
Sensor: BMI270(SPI connection)
Power supply: 1-2S Lipo Lihv battery input (DC 2.8V~8.7V)
Built-in 5A(each) Blheli_S 4in1 ESC Dshot300 ready
Built-in Betaflight OSD(SPI Control)
Built-in UART ExpressLRS 2.4Ghz receiver(Default firmware ExpressLRS v3.0.1)
Built-in 5V 1A BEC
Built-in voltage detection and current sensor
Built-in Onboard flash 16Mb for Blackbox
Onboard 4in1 ESC MCU upgraded to EFM8BB21
Power supply: 1-2S LiPo/LiPo HV (2.8v~8.7v)
Currents: 5A continuous peak 6A (5 seconds)
Support BLHeliSuite programmable
Default Factory firmware: S_H_50_REV16_8.HEX
Support ESC Protocol: DSHOT150/DSHOT300/DSHOT600
Onboard UART ExpressLRS 2.4GHz Receiver Packet Rate option: 25Hz/50Hz/150Hz/250Hz/500Hz
RF Frequency: 2.4GHz
Antenna: enameled copper wire 31mm length
Telemetry output Power: <12dBm
Receiver protocol: CRSF
Default firmware version: ExpressLRS V3.0.1
The same hardware with Happymodel EP1
Could update firmware via ExpressLRS configurator

Included

  • 1x CrossF4 ELRS 1-2S flight controller for Tinywhoop with BMI270 IMU and serial UART ELRS V3.0 receiver

Flight Controller Pinout

***Bind procedure is the same like Happymodel EP1/EP2 receiver , need to upgrade your ExpressLRS TX module to V3.X version first.

Important: Take care to ensure the antenna does not touch any Motor solder pins (or any other exposed pins on the FC, otherwise it would burnt the ESC.

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: 11750239726

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TJD
Omaha, US
★★★★★ 5
Sturdy and Easy to Move
Color: Black, Size: 132"- 6 Panel
This 6 ft black partition on wheels is exactly what I needed to divide space without sacrificing style or stability. It’s sleek, professional-looking, and blends in well with any environment—from office spaces to home studios. The build quality is impressive—very sturdy and doesn’t wobble at all once it’s in place. The wheels glide smoothly and lock securely, making it easy to reposition or keep stationary as needed. Assembly was quick and straightforward, with all parts clearly labeled. Overall, this partition is a perfect combination of functionality and design. Highly recommend it if you need a durable, mobile room divider that looks great and performs even better.
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Reviewed in the United States on August 4, 2025
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Harrison Cole Youngren
Phoenix, US
★★★★★ 5
Nice once put together.
Color: Black, Size: 88"- 4 Panel
I really enjoyed these ones. They got put up, putting them together was a two-man task and not very easy at all. They work really good. They're very heavy duty. You can hang things on them. I kick mine out of the way and they work like a charm!
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Reviewed in the United States on November 2, 2025
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Tiffany C
Houston, US
★★★★★ 5
Easy assemble and not to big!
Color: Black, Size: 132in-Large Metal Base
I bought this because I fo a lot of zoom/teams meetings and work just mandated no false backgrounds (don’t ask) soooo to hide my real home and allow others to roam free while I work I got this. Easy to assemble although you will need some space. I thought I might be to big at 11’ wide as I have a small desk area but actually it’s perfect and could use a couple more panels. Leaves just enough room so I’m not completely cocooned - I can move my chair and get up walk behind chair and exit space. Great deal and tax deductible!
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Reviewed in the United States on March 24, 2025
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Nicholas Schadewald
Houston, US
★★★★★ 4
Fair Quality, Hour and a half build
Color: Black, Size: 132in-Large Metal Base
Key things: It does (more or less, not completely) fold in on itself, it does block nearly all visibility (especially from an angle), it was only about an hour and thirty minutes to put together, and it is light weight. Do I recommend? Yeah.
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Reviewed in the United States on September 1, 2025
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Sheddran Smith
Birmingham, US
★★★★★ 5
Privacy
Color: Black, Size: 132in-Large Metal Base
Great for privacy especially if you have a roommate..
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Reviewed in the United States on May 18, 2026

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