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 Jul 17 - Jul 22

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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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ttlucier
Draper, US
★★★★★ 5
Beautiful and soft
Color: 06 - Gingham Brown, Size: King
Love the feel. Soft, solid, stunningly beautiful. Simply gorgeous. Solid sewing seems. For bed perfectly with enough room for moving bed. A little pricey. Bought a set for my mom too. Worth it
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Reviewed in the United States on April 10, 2026
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gary martin
Whiting, US
★★★★★ 5
Nice
Color: 02 - Pure White, Size: Queen
Good quality
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Reviewed in the United States on May 20, 2026
K
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Kristi
Los Angeles, US
★★★★★ 1
Terrible sheets - absolutely terrible
Color: 02 - Pure White, Size: King
These are thin - so thin that I can see my mattress pad easily through them. They are rough in texture and quite possibly the worst sheets I've ever slept on. I ordered two sets, I'll be returning the second set that is unopened.
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Reviewed in the United States on May 1, 2026
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Amazon Customer
Dallas, US
★★★★★ 5
Bed Sheets
Color: 01 - Linen Beige, Size: Queen
The package was received in very good condition and the sheets were packed in a professional way. The queen size fit my bed very well with large pockets at the corners and strong elastic holding all around. The sheets do seem to be a bit heavier than I expected and were very wrinkled after the first washing. I ironed the pillow cases and they did up well. The material is a bit rougher than I expected, but I have slept very well with them and I am pleased overall.
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Reviewed in the United States on May 29, 2026
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K
Waukegan, US
★★★★★ 5
Top quality sheets that are soft, cool, and absolutely worth it
Color: 02 - Pure White, Size: Queen, Color: 02 - Pure White, Size: Queen
Absolutely impressed with the quality of these sheets. I wanted to switch to cotton sheets to get the hotel feel, but have a lot of sensory issues and was worried that they would be scratchy. These sheets are incredibly soft, crisp, and smooth and are not rough at all. They are made with high quality stitching and didn’t have any loose strings. The pillowcases are also thick and heavyweight and are very durable. Some reviews complained about wrinkles, but this will absolutely not be an issue if you lightly steam your sheets after drying. It took 5 minutes and my sheets look so crisp and fresh. They also come with a cloth bag to put leftover pillowcases/bedding in which is so convenient to keep my extra set in. absolutely worth the quality and better than brands like brooklinen and west elm. I paired them with the bedside duvet + washed cotton duvet cover in bright white.
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Reviewed in the United States on April 25, 2026

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