168 MHz STM32F405 with ICM20602 gyro supports high gyro-sample and PID-loop rates for crisp control
In stock
Flight Controllers
Matek F405-OSD Flight Controller
The Matek F405-OSD is a compact F4-class flight controller built for FPV racing and freestyle quadcopters, pairing a 168 MHz STM32F405 MCU with an ICM20602 gyro/accelerometer for fast, clean control loops.
₹2,999 + 18% GST
SKU: BOTBIT-FC-02 · Best for: 5-inch FPV freestyle and racing quadcopters
Overview
About Matek F405-OSD Flight Controller.
The Matek F405-OSD is a compact F4-class flight controller built for FPV racing and freestyle quadcopters, pairing a 168 MHz STM32F405 MCU with an ICM20602 gyro/accelerometer for fast, clean control loops. At 36 x 36 mm with 30.5 mm mounting holes and roughly 7 g, it fits standard 30.5 mm stacks and lightweight 5-inch builds.
An on-board AT7456E chip provides Betaflight OSD, overlaying battery voltage, timers and flight data directly onto the analogue video feed so pilots can monitor critical info in their goggles. A MicroSD card slot enables Blackbox logging for PID and filter tuning, while a built-in inverter on UART2-RX accepts SBUS receivers, plus there is WS2812 LED and beeper support. Note the F405-OSD has no integrated PDB or current sensor, so it is typically paired with a separate 4-in-1 ESC or PDB such as Matek's FCHUB.
It is aimed at FPV builders who want a proven, affordable, easily tuned F4 board running Betaflight or iNAV. With multiple UARTs for VTX, GPS, telemetry and ELRS/Crossfire receivers, it remains a flexible choice for racing quads, freestyle rigs and small fixed-wing or long-range iNAV builds.
Key features
Why it stands out.
Built-in Betaflight OSD (AT7456E) overlays flight data onto your FPV video feed
MicroSD Blackbox logging captures detailed data for precise PID and filter tuning
Built-in inverter on UART2-RX accepts SBUS receivers without an external adapter
Five UARTs plus WS2812 LED and beeper support give flexible peripheral connectivity
Specifications
Selection facts.
| MCU | STM32F405 @ 168 MHz |
|---|---|
| Gyro / Accel | ICM20602 (SPI) |
| OSD | Betaflight OSD (AT7456E) |
| Blackbox | MicroSD card slot |
| UARTs | 5x UART (VCP + UART1-5) |
| PWM / DShot outputs | 6x |
| SBUS | Built-in inverter on UART2-RX |
| Mounting | 30.5 x 30.5 mm |
| Dimensions | 36 x 36 mm |
| Weight | ~7 g |
Applications
Where it is used.
- 5-inch FPV freestyle and racing quadcopters
- Betaflight-based mini and micro multirotors
- iNAV GPS-assisted long-range and cruiser builds
- Small fixed-wing FPV aircraft
- Cinewhoop and analogue HD camera rigs
- Builds using ELRS, Crossfire or SBUS receivers
Buying guide
How to choose.
Pick the F405-OSD when you want a lightweight, well-supported F4 board for analogue FPV at a low cost. It has no built-in PDB or current sensor, so plan to combine it with a 4-in-1 ESC or a power-distribution board like the Matek FCHUB-6S, which mates to the bottom FFC connector for clean wiring and current sensing.
Check firmware fit for your goals: the F405-OSD runs Betaflight for racing/freestyle and iNAV for GPS navigation. Its five UARTs comfortably handle a VTX, digital receiver, GPS and telemetry, but if you want native digital HD video integration and more outputs, look at newer F7/H7 boards instead.
For Indian builders, this board is a dependable mid-priced choice for 5-inch quads. Confirm you are buying the OSD variant (vs F405-STD/CTR/SE) for the feature set you expect, and pair it with an ESC rated for your motor and battery combination.
FAQ
Common questions.
Does the Matek F405-OSD have a built-in PDB or current sensor?
No. The F405-OSD is a pure flight controller without an integrated PDB or current sensor. You pair it with a separate 4-in-1 ESC or a power-distribution board such as Matek's FCHUB-6S, which connects via the board's bottom FFC slot to add power distribution and current monitoring.
Can I connect an SBUS receiver directly?
Yes. The board has a built-in signal inverter on UART2-RX, so SBUS receivers like FrSky connect directly without an external inverter. It also works with PPM and modern serial protocols, so ELRS and Crossfire receivers on other UARTs are fully supported.
Does it support Betaflight and iNAV?
Yes. The F405-OSD runs Betaflight for racing and freestyle and iNAV for GPS-assisted navigation, return-to-home and cruising. You select the appropriate target firmware in the configurator and flash over USB, choosing whichever firmware matches your flying style.
How many UARTs does it have and what can I connect?
It provides five hardware UARTs plus the USB VCP. That is enough to run a video transmitter, a serial receiver (ELRS/Crossfire/SBUS), a GPS and telemetry simultaneously, with SoftSerial available on some pads for additional low-bandwidth peripherals.
Does it log Blackbox data for tuning?
Yes. A MicroSD card slot records Blackbox logs, letting you analyse gyro, motor and PID data to dial in filters and PID values. This is one of the board's most useful features for serious freestyle and racing tuning.
What size builds is it suited to?
Its 36 x 36 mm form factor with 30.5 mm mounting holes fits standard 30.5 mm stacks, making it ideal for 5-inch freestyle and racing quads. With light weight around 7 g it also works in smaller analogue FPV builds and compact fixed-wing setups.
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