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Description
CrazyF411 AIO Toothpick Flight Controller + Receiver (20A ESC, OSD, Frsky RX)The CrazyF411 from Happymodel is an F4 toothpick flight controller with OSD, that also managed to include 4x 20A ESC and a Frsky compatible receiver built into the board, making this flight controller ideal for a very compact and lightweight toothpick build. The receiver also includes a PA LNA power amplifier to enable much greater range compared to some other flight controllers with built in receivers (up to 400m range). Features 25. 5x25. 5mm FC AIO
The CrazyF411 from Happymodel is an F4 toothpick flight controller with OSD, that also managed to include 4x 20A ESC and a Frsky compatible receiver built into the board, making this flight controller ideal for a very compact and lightweight toothpick build.
The receiver also includes a PA/LNA power amplifier to enable much greater range compared to some other flight controllers with built in receivers (up to 400m range).
Features
- 25.5x25.5mm FC AIO ESC board for toothpick .
- Most powerful for whoop / toothpick style flight
- Supports 2-4s battery input and provides 20A to the motors.
- Also Integrated SPI Frsky receiver working with D8/D16 protocols.
- This integrated receiver has PA/LNA power amplifier and the diversity antenna., This should give more control range for this flight controller.
Specification
Brand Name: Happymodel
Model: CrazyF411 AIO
Item Name: F4 Flight Controller Built-in 20A BL_S ESC & Frsky Receiver
| F4 Flight Controller |
MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
Sensor: MPU-6000(SPI connection) Board size: 28.5 * 28.5MM Power supply: 2-4S battery input (DC 8V-17V) Built-in 20A(each) Blheli_S 4in1 ESC Dshot600 ready Built-in Frsky D8/D16 SPI receiverBuilt-in 2.4G Power Amplification Built-in Betaflight OSD(SPI Control) Built-in Current meter Built-in 5V 1.5A BEC Built-in voltage detection Firmware target: MATEKF411RX Yaw Degrees should set to "-90 degree" to match the flight direction |
| Onboard 20A ESC |
MCU upgraded to EFM8BB21
Power supply: 2-4S LiPo/LiPo HV (7v/17v) Current: 20A continuous peak 25A (5 seconds) Support BLHeliSuite programmable Factory firmware: F_H_40_REV16_7.HEX Default protocol: DSHOT600 |
| Internal Frsky NON-EU receiver Version |
SPI BUS receiver
Frsky D8/D16 compatibleCompatible Non EU transmitter both D8 mode and D16 mode Channels: 8ch/16chDual antenna Failsafe support No ground interference ( Transmitter and receiver 1 m from the ground): 400m |
Connection Diagram Pinout
How to Bind your receiver
Make the on board receiver get into bind mode: For 4.0.x version firmware Plug USB and then connect betaflight configurator and then move to CLI tab , type "bind_rx_spi" ,the Red LED on the top of the flight controller will getting to be solid , the onboard receiver is in bind mode; For 4.1.x or 4.2.x the bind code is "bind_rx"
Included
- 1x F4 AIO ESC RX Board
- 1x Cable with Connector
- 1x bag of Screws & Standoffs
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.1 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
Good size, looks nice, mostly easy to put together and install
Okay I love this a lot more than I expected to. I was not extremely excited about the instructions. They come with a warning that if you have any doubts about your ability to install this, call a qualified technician. It just seemed condescending. Also, everything is printed poorly, like someone put this together in the 80's and it printed smudgingly and this is the copies from that. The only thing that this made confusing was when trying to figure out where the cabinet screws go (before I realized that was an alternative install), you really can't tell which holes they go in. Turns out they probably go in the holes covered by the pre-installed sticky PVC mat.
Only other issue I had was that it comes with a screwdriver. It seems so wasteful to include something that should be in every household, especially those who buy diy things like this.
But beyond that, everything else is great. It was easy to put together, it was easy to place in the cupboard, and it was easy to fill.
I love that each line comes out individually. It's nice and sturdy. I tried pulling on it to test it, and the sticky was strong.
I mostly loved that, even though this took up 3/4 of the shelf, I was able to fit all my small spices AND my honey AND my sprinkles. I went from 3 overflowing shelves to 2 full shelves and an almost empty one. I only have 6 items on the top. I feel super happy about this.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
★★★★★ 5
Great product! :)
Color: 01-silver
It looks great and work very smoothly on our kitchen counter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 5
Very fuctional
Color: 01-silver
Very stylish and functional, the suction cups hold it in place
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 4
Functional and Good Quality
Color: 01-silver, Color: 01-silver
I give this SMARTAKE paper towel holder 4 stars. Overall, it's a very good product that I would recommend, but it has one minor drawback that takes away a star.
The Positives
Quality and Stability: The holder feels good quality, and the material (steel) is sturdy. Once placed on the counter, it's stable and adheres well to the surface.
Assembly and Use: It was easy to put together; just read the instruction manual. I confirm that it works well even with large paper towel rolls. Furthermore, it's not difficult to change the roll at all.
The Drawback
The only problem is the small mechanism that's supposed to adjust and hold the roll (the piece that prevents it from twisting too much). As the paper gets used up, this piece doesn't do its job properly, and the paper unwinds more than it should.
Conclusion: If you're looking for a modern, stable, and well-made holder for your kitchen, this is excellent. Just keep in mind that the adjuster isn't the best, but other than that, it does its job perfectly.
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Reviewed in the United States on October 18, 2025
★★★★★ 5
Durable and nice look
Color: 02-black
Nice quality and nice look for our kitchen
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
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