Falcon Evaluation Board
A highly configurable STM32F405 development board for rocket avionics.
Develop and test your flight software on the bench, with the same sensors you'll fly. Built on the experience of our in-house flight computer, flown at TEKNOFEST.
No payment now. You pay only after we confirm the final price.
Configure
Build your board
Pick the modules you need. Prices and the total update as you go and are added to your pre-order request.
Quick start
Solder mask colour
Before you order
- This is a development board, not a flight computer.
- The board runs from 2–16 V or USB-C. If you choose a boost rail, check its input range above.
- You are responsible for making sure the LoRa frequency and output power comply with the regulations where you use them. 433 and 868 MHz can be used at low power in Türkiye and the EU; 915 MHz is mainly for the USA.
- A solder bridge configuration guide ships with the board.
Pre-order request
Send us your details and configuration. We'll get back to you with the final price and delivery date.
One board
One board, many missions
Flight-software development
Write and test your flight code on the bench, with the same sensors you will fly.
Triple-link ground station
Up to three LoRa links at once on 433 / 868 / 915 MHz.
SİT/SUT & HIL test bench
RS232 / DB9 ready for TEKNOFEST sensor monitoring and synthetic flight tests.
Sensor-fusion testbed
Run five barometers and three motion sensors side by side.
Antenna tracker controller
GNSS, PWM-capable GPIO and a boost rail for servos.
Highlights
Everything you need to develop avionics
MCU
- STM32F405VGT6, 168 MHz Cortex-M4F with FPU
- JTAG/SWD programming and debug
- BOOT and RESET buttons
Sensors (selectable)
- 5 barometer sites: MS5611, BMP390, LPS28DFW, LPS27HHW, MS5837-02BA
- BMI088, BNO055, MMC5983MA
Radio & GNSS
- 3 LoRa slots (one on the back), 50 Ω lines and SMA
- u-blox SAM-M10Q or SAM-M8Q
Recovery
- Apogee and Main MOSFET pyro outputs
- Isolated from the MCU, status LEDs
- Pyro supply selectable via solder bridge: input or boost rail
Power
- High-efficiency 3.3 V / 5 V buck-boost rails
- 2–16 V input or USB-C
- Optional ultra-low-noise 3.3 V and boost rail
- Protected input, current and input voltage sensing
I/O
- USB-C programming and power
- 2 × UART (UART3, UART5)
- 3 × I²C headers
- 18-pin GPIO header (PWM, and CAN controller pins on PD0/PD1, external transceiver required)
- DAC output
- GND / 3.3 V / 5 V power headers
- JTAG/SWD
Configuration
- Every sensor address, bus and power path selectable with solder bridges
Technical specifications
- Microcontroller
- STM32F405VGT6, Arm Cortex-M4F with FPU, 168 MHz, 1 MB flash, 192 KB SRAM
- External memory
- 16 MB SPI NOR flash (W25Q128), optional
- Barometers
- MS5611, BMP390, LPS28DFW, LPS27HHW, MS5837-02BA (any combination)
- IMU / magnetometer
- BMI088, BNO055, MMC5983MA (any combination)
- GNSS
- u-blox SAM-M10Q or SAM-M8Q, optional
- Radio
- 3 slots for EBYTE E22 LoRa modules: E22-400 (410–493 MHz) or E22-900 (850–930 MHz), 30 dBm (M30S) or 33 dBm (M33S)
- RF connectors
- 3 × SMA, right-angle or vertical (selectable), 50 Ω lines
- Pyro channels
- 2 (Apogee, Main), MOSFET switched, isolated from the MCU; supply selectable via solder bridge (input or boost rail)
- Serial / test interface
- RS232 on DB9 (TEKNOFEST SİT/SUT), optional
- Expansion
- USB-C programming and power · 2 × UART (UART3, UART5) · 3 × I²C headers · 18-pin GPIO header (PWM, and CAN controller pins on PD0/PD1, external transceiver required) · DAC output · GND / 3.3 V / 5 V power headers · JTAG/SWD
- Power
- Input 2–16 V on XT30 or screw terminal, or USB-C; 3.3 V / 5 V buck-boost; optional ultra-low-noise 3.3 V; optional boost rail (TPS61088 up to 12.6 V or TPS55340 up to 38 V) on a dedicated always-on XT30
- Protection and sensing
- Input protection; current and input voltage measurement
- USB and debug
- USB-C (programming and power), JTAG/SWD, BOOT and RESET buttons
- Indicators
- Status LEDs, differentially driven piezo buzzer
- Board size
- 120 × 120 mm, 1.6 mm PCB
FAQ
Questions and downloads
Can I fly this board?
No. At 120 × 120 mm it's a development board, not a flight computer. Develop and test your flight code on it, then move it to your own flight hardware.
Which LoRa module should I choose?
E22-400 modules cover 410–493 MHz (the 433 MHz band), E22-900 modules cover 850–930 MHz (868 and 915 MHz). M30S versions transmit up to 30 dBm (1 W), M33S versions up to 33 dBm (2 W). Choose the band allowed where you use it and set the output power to the legal limit; for competitions, follow their frequency rules. With three slots you can run three links at once, for example telemetry, a backup link and a payload link on the ground-station side.
What is SİT/SUT?
Two tests in the TEKNOFEST Rocket Competition. In the Sensor Monitoring Test (SİT) the flight computer streams its sensor data to the referee hardware; in the Synthetic Flight Test (SUT) the referee feeds simulated flight data and checks that recovery events trigger correctly. The RS232 / DB9 port is made for this connection.
How are the solder bridges set?
Each sensor address, the bus it sits on and the power paths are chosen by joining or opening small solder bridge pads. The configuration guide shipped with the board lists every bridge.
When will it ship?
The board is in the pre-order phase. Once production is scheduled we'll email everyone who sent a request with the final price and delivery date. Nothing is charged until you confirm your order.
Downloads
- PinoutComing soon
- User manualComing soon
- Board test & example codeComing soon