4 layers148 × 78 mm
Hub
Bruhdows/klink
Klink is a magnetic tile system for building programmable machines. First up: a marble run with sensors, buttons, lights, gates, splitters and an elevator.
85 parts
4 layers40 × 40 mm
Drone fc
FidelOdok/MetaForge8AI Engineering Agent
- Size
- 40 × 40 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 38
- Nets
- 68
- Pads
- 196
- Tracks, vias
- 349, 97
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 12 Feb 2026
- Updated
- 8 Nov 2026
Overview
Drone fc is an open-source printed circuit board by FidelOdok, from the FidelOdok/MetaForge repository on GitHub, published under the Apache-2.0 licence. It is a 4-layer board of 40 × 40 mm with 38 parts on 68 nets, routed with 349 tracks and 97 vias.
It is built around the STM32F405RGT6, BMP280 and AP2112K-3.3TRG1, with the MPU-6000, USBLC6-2SC6 and USB4105-GF-A among its other parts. Its parts include 17 capacitors, 6 resistors, 5 ICs, 4 connectors and 1 diode. It belongs with the robots and motor control boards and the STM32 boards of this library.
Main components
6
STM32F405RGT6
LQFP-64(10x10)-40℃~+85℃ 1.8V~3.6V 12bit 12bit 168MHz 192KB 1MB 32 Bit 51 ARM Cortex-M4 Built-in FLASH LQFP-64(10x10) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
BMP280
LGA-8(2x2.5)-40℃~+85℃ 0.12hpa 1.5pa/K 1.71V~3.6V 1hpa 300nA 30Kpa~1.1bar I2C、SPI Integrated ADC and digital interface、On-chip calibration and non-volatile storage、Standby mode、On-chip temperature output LGA-8(2x2.5) Pressure Sensors ROHSBoschPressure Sensors
AP2112K-3.3TRG1
SOT-25-5-40℃~+85℃@(Ta) 1 250mV@(600mA) 3.3V 50uVrms 55uA 600mA 65dB@(1kHz) 6V Fixed Over Current Protection、Thermal Shutdown、Enable control Positive SOT-25-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MPU-6000
QFN-24-EP(4x4)-40℃~+85℃ 16bit 1KB 2.375V~3.46V 5uA IMU (accelerometer + gyroscope) SPI、I2C X,Y,Z X,Y,Z ±16g ±2000dps 运动事件检测、同步与时间戳、过量程保护功能 QFN-24-EP(4x4) Accelerometers ROHSTDK InvenSenseAccelerometers
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
USB4105-GF-A
SMD-40℃~+85℃ 1 12P 48V 5A Black Female Surface Mount, Right Angle Type-C USB 2.0 SMD USB Connectors ROHSGlobal Connector Technology (GCT)USB Connectors
README
examples/drone_flight_controller/eda/kicad/README.mdKiCad project — generated reference board
This is the drone flight controller as MetaForge's Phase 2 electronics pipeline generates it (FORGE-685). Nothing here was drawn by hand:
| File | What it is |
|---|---|
drone-fc.kicad_sch | Schematic from kicad.generate_schematic |
drone-fc.kicad_pcb | 4-layer board from kicad.generate_pcb, routed by kicad.autoroute_pcb |
drone-fc.kicad_pro, sym-lib-table, fp-lib-table | Project and library tables |
drone-fc-top.png | Top render (kicad.render_pcb) |
report.json | Every check result from the run that produced these files |
The input is ../circuit.json, written by
../build_circuit.py from the design by pin name
(U1:PA5), with each name resolved to the pin number in KiCad's own symbol.
To regenerate, run this in the kicad-adapter image:
python examples/drone_flight_controller/eda/build_circuit.py
python examples/drone_flight_controller/eda/generate.pyThe board
- STM32F405RGT6 (LQFP-64) with an 8 MHz crystal, a SWD header and USB FS behind a USBLC6 ESD array on a USB-C receptacle.
- MPU-6000 IMU on SPI1, BMP280 barometer on I2C1, and an AP2112K-3.3 LDO from the 5 V input (the ESC's BEC, or USB).
- Motor outputs M1–M4 on PB0/PB1 (TIM3) and PA0/PA1 (TIM5), the pins
firmware/src/pinmap.jsonassigns. - 40 × 40 mm, 4 layers: In1.Cu a solid GND plane and In2.Cu a +3V3 plane (decision DD-002), with GND poured on both outer layers. Tracks are 0.15 mm, vias 0.5/0.25 mm, and the 5 V input runs at 0.4 mm.
What the checks say
KiCad runs every check: ERC on the schematic with 0 errors, the exported
netlist matching the circuit net for net, and the routed board at 0
unconnected items and 0 DRC errors, with schematic parity clean. The STEP
export has a model for all 34 parts. report.json records the exact counts.
The placement is the generator's deterministic starting point. It puts the MCU at the centre, the connectors on the left edge, and each part beside the one it shares the most with, so the decoupling capacitors line up along the MCU's supply pins. It is a correct board, not a tuned one. Nothing here claims signal integrity, controlled impedance for the USB pair, or EMC performance. Those need a field solver and a person.
Parts
38| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3, C4, C9, C14, C16, C17 |
| 4 | MountingHole_3.2mm_M3 | MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 1uF | Capacitor_SMD:C_0402_1005Metric | C6, C10, C11 |
| 2 | 2.2uF | Capacitor_SMD:C_0402_1005Metric | C7, C8 |
| 2 | 20pF | Capacitor_SMD:C_0402_1005Metric | C12, C13 |
| 2 | 4.7k | Resistor_SMD:R_0402_1005Metric | R4, R5 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R2, R3 |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R6 |
| 1 | 2.2nF | Capacitor_SMD:C_0402_1005Metric | C15 |
| 1 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C5 |
| 1 | 5V_IN | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J2 |
| 1 | 8MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | BMP280 | Package_LGA:Bosch_LGA-8_2x2.5mm_P0.65mm_ClockwisePinNumbering | U3 |
| 1 | LED_GREEN | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | MOTORS | Connector_JST:JST_PH_B5B-PH-K_1x05_P2.00mm_Vertical | J3 |
| 1 | MPU-6000 | Sensor_Motion:InvenSense_QFN-24_4x4mm_P0.5mm | U2 |
| 1 | STM32F405RGT6 | Package_QFP:LQFP-64_10x10mm_P0.5mm | U1 |
| 1 | SWD | Connector_PinHeader_1.27mm:PinHeader_1x04_P1.27mm_Vertical | J4 |
| 1 | USB-C | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U5 |
Questions
How big is the Drone fc PCB?
It measures 40 × 40 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Drone fc use?
38 parts, built around the STM32F405RGT6, BMP280, AP2112K-3.3TRG1 and MPU-6000. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Drone fc KiCad files?
From the FidelOdok/MetaForge repository on GitHub, at the commit this page was made from: the board is examples/drone_flight_controller/eda/kicad/drone-fc.kicad_pcb and its schematic examples/drone_flight_controller/eda/kicad/drone-fc.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Drone fc design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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