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Joshua Bardwell and RaceDayQuads.com have come together to make the industry’s next favorite flight controller. With the latest features, a layout which will make your build clean and easy, top notch customer support, and an extremely competitive price, the Bardwell F4 AIO Flight Controller is perfect for your quad!
✓ 3-6s F4, AIO board with MPU 6000 gyro
✓ Superb board layout allowing for easy and clean builds
✓ Joshua Bardwell authored manual and selected features, manufactured and backed by RaceDayQuads
✓ Centrally located gyro
✓ Betaflight OSD w/131a current sensor
✓ Compact 30.5x30.5 board layout
✓ 7.6v filtered power out for VTXs – very strong filtering capability for clean video
✓ Power Out: 3x 5v, 1x 3.3v, 1x VBAT, 1x VTX filtered power (7.6v), 1x Camera filtered power (7.6v);
✓ 4x UARTS for FRSKY, SBUS, IBUS, SAT (2 inverted UARTS)
✓ Smart Audio compatibility and Camera Control capability
✓ Pre-flashed with BF 3.2.1 – Compatible with CLRACINGF4.hex
✓ Programmable LED pin
✓ Buzzer pins
✓ Blackbox capability
✓ No pinned-connectors – all direct solder for optimal durability
✓ Included and installed vibration dampeners
BOARD LAYOUT QUICK-REFERENCE
The table below shows the intended purpose of each of the pads on the board. Detailed instructions for wiring up the board are later in the manual.
TOP OF BOARD
ESC- Battery voltage negative, wired to ESC.
ESC+ Battery voltage positive, wired to ESC.
S1, S2, S3, S4
Motor signal outputs 1-4.
Serial receiver (SBUS, iBus, SpekSat) input. UART1. Can be used with both inverted and non-inverted protocols, but iBus telemetry and SpekSat binding don’t work on this pad. Can also be used for ESC Telemetry if you’re freaky like that.
SmartPort telemetry input (inverted) UART3.
5v or 3.3v output for receiver. Use solder bridge on underside of board to select voltage.
7.6v filtered output for FPV camera and vTX. Max 1.2 amps.
UART6 receive pad. Use this for non-inverted receiver input such as iBus or SpekSat. iBus telemetry and SpekSat binding work on this pad. Can also be used for other receive functions like ESC telemetry.
Video signal input from FPV camera.
FPV Camera OSD Menu Remote Control function. Connect to camera OSD input pin.
Programmable LED output pin. Usable with Betaflight LEDStrip feature. Also, can be reassigned to SoftSerial via Betaflight resource remapping feature to provide one additional UART
TX4 / RX4
UART4 TX and RX pads. TX4 is primarily intended for use with vTX remote control function such as SmartAudio or Tramp Telemetry. UART4 is the only one UART on the board with both TX and RX pads available. If UART4 is needed for some other purpose, reassign LED pad to SoftSerial and use vTX remote control that way.
Negative leg of piezo buzzer.
Positive leg of piezo buzzer.
Video out to FPV video transmitter.
BOTTOM OF BOARD
5v output for accessory devices. Max 1.2 amps total across all 5v pads.
Main battery lead positive wire.
Main battery lead negative wire.
Solder bridge for selecting 5v or 3.3v output to receiver pad on top of board.