















F4 1S 5A AIO Brushless Flight Controller
The F4 1S 5A AIO Brushless Flight Controller is back in stock with new and upgraded features. The new board integrates Serial ExpressLRS 2.4G receiver. Compared with the original built-in SPI ELRS 2.4G receiver, it could flash the newest ELRS official firmware like V3.0 easily. Also, we updated the FC with high-quality BMI270 gyro, BB51 ESC hardware with Bluejay ESC firmware, and 8MB Betaflight Blackbox flash.
Please click here to F4 1S 5A AIO (SPI ELRS 2.4G) if you need information about it.
Tons of ExpressLRS items are available now!
Two version choices for the FC board. Weighing only 2.96 grams, the Light version comes with NO motor connectors soldered. Therefore, pilots could directly solder the motor cables to the FC board, getting an ultimate lightweight drone for fast speed FPV racing.
Light Version |
Classical Version |
|
Weight |
2.96g | 3.64g |
Board Thickness | 0.8mm | 0.8mm |
Motor Connectors | Not Solder | Soldered |
Bullet Point
- Come with a Serial ExpressLRS 2.4G receiver, which can be updated via Wi-Fi or Betaflight serial passthrough. It is convenient for pilots to flash any version of ELRS RX firmware and especially can flash ExpressLRS V3.0 without updating flight controller firmware.
- The SPI Frsky version board reserves an SBUS port and a UART port, which is available for the SBUS protocol receiver or other external receivers.
- Built-in an 8MB flash memory chip dedicated to Blackbox logging. It’s an extremely powerful tool for tuning and troubleshooting an FPV drone.
- Particular design with a weight of 3.64g (Classical) and 2.96g (Light), reasonable layout, and easy to build. With a 26*26mm mounting hole size, it is fully compatible with the whoop frame in the current market.
- The Light version requires soldering motor wires to the pad directly, which allows lower resistance for more current on motors. It also comes with motor pin connectors for convenience to use.
Specification of FC
- CPU: STM32F411CEU6 (100MHZ)
- Six-Axis: BMI270
- Built-in Receiver: Serial ExpressLRS 2.4G/SPI CC2500 (Frsky)
- Receiver antenna: Line antenna
- FC Size: 30*30mm
- Mounting Hole Size: 26*26mm
- Firmware version: betaflight_4.3.0_BETAFPVF411 (ELRS)/betaflight_4.2.11_BETAFPVF411RX (Frsky)
- OSD: Built-in BetaFlight OSD
- Blackbox: 8MB
- Recommend VTX: >=200mW, like BETAFPV M03 350mW VTX or TBS Unify VTX
- Power Cable: 55mm, with BT2.0 connector
- Weight: 2.96g (without motor connectors) / 3.64g (with motor connectors), excluding power cable
Specification of ESC
- Power supply: 1S
- Current: 5A continuous and peak 6A (3 seconds)
- ESC firmware: A_X_5_.HEX for Bluejay BB51 hardware
- Signal Support: D-shot300, D-shot600
Diagram
Below is the diagram for Serial ELRS 2.4G RX. The diagram for the Classical and Light versions is the same.
Below is the diagram for SPI Frsky RX. The diagram for the Classical and Light versions is the same.
Serial ELRS 2.4G RX
Serial ELRS 2.4G RX uses the Crossfire serial protocol (CRSF protocol) to communicate between the receiver and the flight controller board. So the Serial ELRS 2.4G RX is available to support upgrading to ELRS V3.0 with no need to flash Betaflight flight controller firmware. Enter binding status by power on/off three times.
- Plugin and unplug the flight controller three times;
- Make sure the RX LED is doing a quick double blink, which indicates the receiver is in bind mode;
- Make sure the RF TX module or radio transmitter enters binding status, which sends out a binding pulse;
- If the receiver has a solid light, it's bound.
The Serial ELRS 2.4G RX can be updated via Wi-Fi or Betaflight serial passthrough. Here is the way to update the Serial ELRS 2.4G RX firmware through passthrough.
- Plug in your FC to your computer, but do NOT connect to betaflight configurator.
- Choose target "BETAFPV 2.4GHz AIO RX".
- Flash using the BetaflightPassthrough option in ExpressLRS Configurator.
How to flash firmware via Wi-Fi here.
SPI Frsky RX
Come with the built-in SPI Frsky Receiver (CC2500 chip), F4 1S 5A AIO FC can be compatible with Futaba S-FHSS, Frsky D8, and D16 protocol. The default protocol is configured to Frsky D16 FCC out of the factory. Pilots could set up the protocol according to your own need in Betaflight Configurator.
Configuration | Protocol |
FRSKY_D | Frsky D8 |
FRSKY_X | Frsky D16 FCC (ACCST 1.X version) |
FRSKY_X_LBT | Frsky D16 LBT (ACCST 1.X version) |
SFHSS | Futaba S-FHSS |
How to Bind with Betaflight FC with SPI Frsky Receiver.
Betaflight Firmware and CLI
F4 1S 5A AIO Brushless Flight Controller comes with the default firmware betaflight_4.3.0_BETAFPVF411 (ELRS) or betaflight_4.2.11_BETAFPVF411RX (Frsky). The default firmware for Serial ExpressLRS 2.4G RX version supports ELRS V2.4 RX.
Pay attention, For the Serial ExpressLRS 2.4G version, ONLY the Betaflight firmware 4.3.0 and up start to support this BMI270 gyro. For the SPI Frsky version, DO NOT flash the other firmware, otherwise, the RX will be lost in control at a very close range. We have already built our own firmware betaflight_4.2.11_BETAFPVF411RX for SPI Frsky RX version to support BMI270 gyro. Please check the below link to download the firmware.
- Download the firmware and CLI dump file for the F4 1S 5A FC ELRS/Frsky board. (Both Light and Classical versions share the same firmware)
Note: The RX RSSI values drop when the flight controller is installed on the quadcopter with HD digital VTX (Walksnail or HDZero). For example, the theoretical failsafe RSSI values for 250Hz packet rate are -108dBm. Actually, the RX will be possibly lost in control when the RX RSSI values reach about -92dBm.
Bluejay ESC Firmware
F4 1S 5A flight controller with BB51 ESC hardware could flash the Bluejay ESC firmware now, which is based on BLHeli_S revision 16.7. With Bluejay ESC firmware, it supports bidirectional D-shot and RPM filtering in Betaflight, offers 24KHz, 48KHz, and 96KHz fixed PWM frequency for options, and custom start-up melodies. By using Bluejay ESC firmware on Meteor65 and Meteor65 Pro whoop drones with 0802SE 19500KV motors, the flight time is increasing effectively. The default firmware for F4 1S 5A FC will be changed to Bluejay ESC firmware.
For pilots who want to flash Bluejay ESC firmware for F4 1S 5A FC, please use the BLHeliSuite16714902A_Beta or ESC-Configurator and download Bluejay ESC firmware A_X_5_.HEX from the below links. (Both Light and Classical versions share the same firmware)
- ESC-Configurator: https://preview.esc-configurator.com/
- Download BLHeliSuite16714902A_Beta here.
- Download the Bluejay ESC firmware. Please choose A_X_5.HEX.
Note: Only SPI ELRS 2.4G version supports motor direction set through Betaflight Configurator and SPI Frsky version does not support it. BLHeli Configurator and Bluejay Configurator are invalid for the BB51 ESC (both versions).
Connecting External RX/HD Digital or Analog VTX
Both Serial ExpressLRS 2.4G RX and SPI Frsky RX version support external HD digital VTX or Analog VTX. Please note that the SPI Frsky RX version reserves an SBUS port and a UART port, which is available for the SBUS protocol receiver or other external receivers. You can refer to the below picture. The diagram is the same for Classical and Light version.
Recommend Parts
- Battery: BT2.0 300mAh 1S Battery
- Frame: Meteor65 frame / Meteor65 Pro frame / Meteor75 frame
- Props: 31mm 4-Blades props (for 65mm frame) / 35mm 3-blade props (for 65mm frame) / 40mm 4-blades props (for 75mm frame)
- Motors: 0802SE motors / 1102 brushless motors
- VTX: M03 25-350mW VTX
Package
- 1 * F4 1S 5A AIO Brushless Flight Controller (ELRS or Frsky)
- 4 * M1.2x4mm Screws
- 4 * M1.4x5mm Screws
- 4 * Anti-vibration Rubber Dampers
- 8 * Motor Pin Connectors (Light version included)

Shipping Method & Delivery Times
We offer the following shipping options:
Expedited Shipping: Estimated delivery in 3-7 working days via DHL/FedEx.
Standard Shipping: Estimated delivery in 12-30 working days via registered mail.
Please expect a processing time of 1-2 business days (Mon–Fri, excluding holidays).
IMPORTANT:
- Delivery estimates are not guaranteed and may vary due to shipping address, customs clearance and carrier delays.
- Battery orders: Expect more business days for safety inspections.
- Out-of-stock items: Ships in 1–2 weeks (we’ll notify you via email).
- Address errors: Double-check your shipping details during checkout. Incorrect/missing addresses cause delays or failed deliveries.
Shipping Costs
1. Standard Shipping
We offer free standard shipping on all orders of $99.99 or more. For orders between $20 – $99.98, a flat rate of $5 applies. For orders under $20, a flat rate of $10 applies.
IMPORTANT: Starting April 24, all U.S. orders will include a flat $10 fee to offset recent increases in shipping costs and tariffs. To learn more details, check U.S. Tariff Policy Change: What You Need to Know.
2. Expedited Shipping
We offer expedited shipping service worldwide including islands area. Shipping fees are calculated automatically at checkout based on your location and order weight.
IMPORTANT: Customers are fully responsible for customs duties, taxes, customs clearance and other costs incurred when choosing expedited shipping. If a shippemnt is returned due to unpaid import fees, return shipping costs will be charged to the customer, and no refunds will be issued for the original order.
3. Additional Shipping Fee
There are certain situations where you may be required to pay extra shipping fees.
- Products with large dimensions or weight: Products with large dimensions or weight are excluded from free shipping rule due to carrier dimensional weight calculations. (Including: FPV Goggles, BETAFPV Gates & Flags, RTF FPV Whoop Kits, LiteRadio Series radio transmitter, Storage Cases)
- Remote countries/regions: Orders shipped to remote countries or regions (e.g., islands, rural areas) may require adjusted shipping fees based on carrier surcharges.
- Expedited Shipping with Batteries: Expedited Shipping orders containing more than 2 batteries that exceed the limits outlined in our Battery Shipping rule below will incur extra fees to cover separate battery shipments.
- Reshipping Costs: Packages returned due to incorrect addresses or customs clearance failures (e.g., unpaid duties) will be subject to reshipping fees. Customers must cover these costs before redelivery.
Shipping Rules
1. Battery Shipping
Some countries or remote regions are forbidden to ship stand-alone batteries due to restricted customs and safety regulations. If your location restricts battery shipments, we will notify you promptly and adjust your order accordingly. Review the 2. Countries/Regions Where Battery or Drone Shipping Is Restricted below for details.
Expedited Shipping Battery Shipping: Stand-alone batteries are prohibited for expedited shipping. However, drones packed with less than or equal to two batteries or devices with bulit-in batteries (e.g., transmitters, goggles) may still qualify for expedited delivery.
Battery Type |
International Expedited Shipping |
No batteries |
Accepted |
Contained in |
Accepted |
Packed with (no more than 2 batteries) |
Accepted |
Stand-alone |
Prohibited |
Battery Type Definitions
- Stand-alone: Package ONLY contains batteries or cells; NO equipment.
- Packed with: Package contains equipment + cells or batteries that are NOT installed in the equipment. For example, BNF drones with batteries or RTF drone kits.
- Contained in: Package has lithium batteries contained in equipment (properly installed in the equipment they are intended to operate). For example, radio transmitter or goggles.
2. Countries/Regions Where Battery or Drone Shipping Is Restricted
Due to customs regulations and carrier restrictions, we cannot ship drones or batteries to the following destinations:
- Drones Restricted: Brazil, Saudi Arabia
- Drones & Batteries Restricted: Armed Forces Europe (APO/FPO/DPO), P.O. Box, Dominican Republic, Maldives
- Batteries Restricted: South Africa, Cyprus, Cote d'Ivoire, Brunei, India, Argentina, Turkey, Serbia, Iceland, Guadeloupe, Georgia, Belarus, Bosnia and Herzegovina, Montenegro, Saint Barthelemy, Oman, Armenia, Qatar, Costa Rica, Kuwait, Jamaica, Malta, Jersey, New Caledonia, Kyrgyzstan, Burundi, French Guiana, Mauritius, Greenland
Note: The list is subject to change without prior notice due to evolving customs regulations, carrier restrictions, and local legislation.
3. Address Requirements
To ensure successful delivery, please carefully follow these requirements based on your location. Incorrect or incomplete information may cause delays or failed deliveries.
Japan & Germany: Street name and number, apartment/unit number (if applicable) are required. Omissions are not allowed.
Australia & United States: Provide the postal code that matches the city, and ensure that the city name is written correctly without any omissions or abbreviations.
Hong Kong, Macao, Taiwan, and Mainland China: Address must be written in Chinese characters.
Tax ID Required for Customs Clearance for orders to the following countries:
- South Korea: Personal Clearance Code
- Brazil: Cadastro de Pessoas Físicas (CPF)
- Chile: Tax Identification Number (RUT)
- India: Aadhaar Card/Pan Card/KYC number
- Mexico: TAX ID (RFC) / Personal ID (CURP)
- Indonesia: Nomor Pokok Wajib Pajak (NPWP)
Delayed Or Rejected Orders Liability
BETAFPV is not liable for delayed or rejected packages resulting from circumstances beyond our reasonable control. This includes, but is not limited to:
Delays of shipments to remote regions: Shipping time might be delayed for 3-7 days to remote regions or over 7 days to island destinations like Hawaii, Puerto Rico, Canary Islands, etc.
Customer-caused delay or delivery failure: These actions include, but are not limited to address changes after shipment, incorrect/incomplete addresses, invalid contact information, and refusal to accept delivery, etc.
Force majeure: It means unforeseen, inevitable, or insurmountable objective situation and other objective conditions that cause delayed shipping, including, but not limited to: national or regional air or ground transportation system controls or interruptions (e.g., weather reasons), communication system interference or malfunction, government actions, postal administration policy changes, wars, earthquakes, typhoons, floods, fires, heavy rain, heavy fog, and other similar events.
Packages cannot be delivered to your address during weekends, national holidays, and festivals.
The address is a school, hotel, unit, or residential community where the courier has no access. Please provide a permanent street address.
*Please confirm your address before payment. If corrections are needed, please contact BETAFPV customer support in a timely manner.
Tracking Your Package
Once your order ships, you’ll receive a notification email with the tracking number. You can also check your order status by logging into your BETAFPV account dashboard, where shipped orders display tracking links based on your selected shipping method. If your order status shows “Shipped” but no tracking details are visible, this means your package is prepared and awaiting carrier pickup. A status of “Processing” indicates we’ve received your order and are preparing it for shipment.
Please note that you may receive more than one Shipment Notification E-mail if item(s) from your order are shipping separately.
You can also enter the tracking number to check your package shipment status below. If you encounter issues tracking your order, contact BETAFPV customer support for assistance.
FAQ
1. How long until my order ships?
All orders typically will be processed within 1-2 working days after your payment. Delays may occur during high order volumes or backorder situations.
If there will be a significant delay in the shipment of your order, we will contact you via email. Please make sure your email address is active and remember to check the email for updates.
2. After I place an order, how do I change my order before shipment?
Country selections cannot be modified after checkout. If you need to change these details, please cancel the order and purchase again. Please contact BETAFPV customer support within 24 hours after placing the order if you need to change order product information or address.
3. How do I cancel after I have placed the order, but it has not shipped?
You can contact BETAFPV customer support for canceling if your order has not been shipped. If your order has been shipped less than 24 hours, please contact the customer service and we will try to hold your order from the shipping company.
It is impossible to cancel if your order has been shipped over 24 hours.
4. Under what circumstances will BETAFPV cancel an order unilaterally?
We reserve the right to cancel orders for:
- Unavailable product(s): BETAFPV tries to contact customers and does not get a reply in 7 days.
- High-risk Order(s) identified by banks/Paypal: To ensure your card safety, we will cancel your order.
- Unshippable destinations: If we are not able to ship to your location, your order will be canceled.
*BETAFPV reserves the right to update this policy. Last revised May 2025.
Arrived promptley and both board worked, basiclly all you can ask for
I had some issues with the BMI270. Antony from customer support worked with me every day for a week to get it flying, and we managed to figure it out! But then one of the ESCs got fried. I contacted Antony again and he worked with Pyrodrone (whom I bought the board from originallly) to ship a brand new one to me right away. I really appreciate the support from these guys. Great job!
Its a cheap aio but not reliable my previous one broke after two months
Great company, would by again. Perfect for what I needed. I normally don't review but I did for this purchase.
Great product, great customer service. Shipping is painfully slow, but it is due to customs.