BetaFPV 1S Brushless All-In-One Flight Controller V2.1

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  • Regular price $39.99


  • FrSky SPI Rx built in
  • MPU-6000 Gyro
  • 25.4x25.4mm mounting (Whoop board mount)
  • Firmware: Betaflight MATEKF411RX (MK41R)
  • OSD: Built-in BetaFlight OSD (STM32 controls OSD chip over SPI in DMA mode)
  • Power Cable: 60mm, with JST-PH 2.0 connector, 1.25mm motor header pins
  • Weight: 2.69g
  • D8 and D16 binding but will NOT bind to the new style D16 found on X9 Lite

This is one of the newer style super light 1S brushless Whoop boards. It’s designed for extra low weight builds. We’ve been using it for our 1S 3” builds and we carry it specifically for that build. This isn’t the only 1S whoop board option and we are investigating a few others but for now, we can assure this board works well. Note that all built in SPI Rx’s aren’t as good as genuine ones and this board isn’t any different. It’s better than the Crazybee boards but still not full range.

1S 3” Drivetrain:



Customer Reviews

Based on 19 reviews
Filip (Ostrava, CZ)
Good when it is working

Been using it for one day then the VTX stopped working - find out that the 5V pad on the board is not giving 5V but 3.7V...

Rob Axelsson (Atlanta, US)
Already set up for “Meteor”..with BF 4.1.1 AND vtx tables

Building a Babytooth, this came preloaded with 4.1.1 and vtx tables for a Meteor. It also shows the % on the motors.. so MAYBE the esc’s have been updated.. not sure, the build is still waiting on parts..

Evan Redwood (Wheatley, CA)
Works as expected.

The board works as it should, seems good, the range of the SPI receiver is better than expected...overall, quite happy!

Shawn Poole (Cherry Hill, US)
I had nothing but problems with this 1c crap.

This is my 3rd. One. This one is having vtx issue the others were fets. It mus be because so small? Or I'm just have a bad go at it with this 1c build. I'm not a master drone builder but have lots under my belt. Smaller build get to me. I'm 50 and can't see that well.

John R (Eugene, US)
Best 1S choice for now

The SPI receiver has awful range - there's always the no-RX version but keep in mind that they have very different layouts. I pulled the connectors off mine and soldered the motor wires directly, which is not the easiest thing on this tiny board though it improves efficiency a lot. This one will do the job until another board comes along with better pads for soldering, etc.