Happymodel CrazyG473 AIO 5-in-1 Flight ControllerCrazyG473 5 in 1 AIO Flight Controller Remember when building a 1S whoop meant soldering a stack of four boards the size of your thumbnail? We don't miss it either. Meet the CrazyG473 V1. 0 AIO Flight Controller, the 5 in 1 cure for your micro build headaches. This little beast from Happymodel packs a powerful G473 MCU, a built in UART ELRS receiver, and a 400mW OpenVTX AIO, making it the ultimate brain for your next 65mm UK gate crusher. Why You Want

CrazyG473 5-in-1 AIO Flight Controller

Remember when building a 1S whoop meant soldering a stack of four boards the size of your thumbnail? We don't miss it either. Meet the CrazyG473 V1.0 AIO Flight Controller, the 5-in-1 cure for your micro-build headaches. This little beast from Happymodel packs a powerful G473 MCU, a built-in UART ELRS receiver, and a 400mW OpenVTX AIO, making it the ultimate brain for your next 65mm UK gate-crusher.

Why You Want It

Because your current F411 whoop board is wheezing like it just ran a marathon. The STM32G473 MCU isn't just a marginal upgrade; it's a tiny silicon powerhouse. It lets you run faster PID loops and higher DShot rates without breaking a sweat, translating to smoother, more responsive flight. It's the kind of locked-in feel that might just make you blame your thumbs for a crash instead of the tune. We're just helping you find new excuses, and taking your money to do it.

Features and Highlights

• STM32G473 MCU: More processing power than your first laptop. Enjoy silky-smooth 96KHz ESCs without setting anything on fire.
• Built-in UART ELRS RX: No fiddly soldering, no extra grams. It just works. The way it should have been all along.
• 400mW OpenVTX: Blast a clean signal through three layers of drywall during your living room Grand Prix. (Our lawyers advise you not to do this).
• Integrated 16MB Blackbox: Finally, you have the data to prove it was a desync and not pilot error. The data won't lie for you.
• Native A30 Connector: Ditch the power-sapping PH2.0. This is the good stuff for 1S performance.

Specifications

• MCU: STM32G473CEU6 (The brain of the operation)
• Gyro: ICM42688P (Less twitchy than your trigger finger on race day)
• Weight: 4.83g (The supplier spec said 83g, which is a typo unless it's made of lead. This is our best guess.)
• ESC: 5A Bluejay (Ready for DShot600 and your 'send it' moments)
• RX: UART ExpressLRS 2.4GHz (The one true radio link, fight us)
• VTX: 5.8GHz OpenVTX @ 400mW max (Because 'video breakup' is not an excuse)

Product Notes / The Catch

Look, we love bleeding-edge tech. The downside? Sometimes Betaflight hasn't caught up. The firmware target for this G473 board isn't in the official configurator release just yet. You'll need to be brave and flash the provided HEX file manually. We've got the links, you'll need the courage. Don't let the magic smoke out.

What’s in the Box*

• 1x CrazyG473 AIO Flight Controller
• 1x Bag of wires and rubber grommets we assume you know what to do with

Disclaimer

*If your bag is missing the rubber grommets, that just means your build is going to be extra challenging. Good luck.

Full Specifications

FC

• MCU: STM32G473CEU6
• Gyro: ICM42688P
• Blackbox memory: 16MB
• Sensor: Voltage & Current
• BEC: 5V, Max. 2A
• UART: UART 1, UART 2, UART 3 (For RX), UART 4(For VTX)
• BetaFlight OSD: AT7456E
• ESC: 5A continuous
• RX: Serial ELRS 2.4GHz
• RX antenna: Enameled copper wire 31mm length
• Receiver firmware target: HappyModel EP1/EP2 2.4GHz RX
• OPENVTX: 5.8GHz 48 channels, Max. 400mW
• FC firmware target: CRAZYBEEG473
• USB port: SH1.0-4Pin
• Battery connector: A30
• Mounting hole size: 5mm x 25.5mm
• Weight: 83g without pigtail and vtx antenna

ESC

• Power input: 1S Only
• Current: 5A continuous, 6A peak
• ESC firmware: V0.21.hex Bluejay
• Firmware target: A_X_5_96KHz
• Digital signal protocol: DShot300, DShot600

VTX

• OPENVTX Firmware
• Support firmware upgrade by openvtx configurator
• Output power: PIT/10/25/100/400
• Frequency: 5.8GHz 48 channels, with Raceband: 5658~5917MHz
• Channel SEL: SmartAudio2.1
• Modulation type: FM
• Operating temperature: -10℃~+80℃
• Antenna port: IPEX1/U.FL

Noted: Visit https://app.betaflight.com and click “select your device” then choose can’t find my USB device, then connect comport and betaflight configurator.

Due to firmware target is not available in current betaflight official ,you can download hex file from the belowing link:

Firmware download CRAZYG473 4.6.0 betaflight firmware

Default factory dump file Dump file for CRAZYG473 Betaflight4.6.0

Still Here? Want the Best 1S Whoop FC?

You've digested every spec. You're probably the person who reads the entire EULA. Your dedication to the nerdy details is admirable. This 1S whoop FC is for you. Now stop reading, add it to your basket, and go build a micro drone that'll make Joshua Bardwell nod in quiet approval. Or at least, not actively disapprove. That's a win.

Your whoop's old F4 chip is crying for help. This G473 AIO with its built-in ELRS receiver gives you a locked-in tune without touching a soldering iron. Stop tweaking, start flying.