4 layers33.6 × 65.7 mm
4 layers127.1 × 58.2 mm
Hand of God FC is a humanitarian aid drone flight computer.
- Size
- 127.1 × 58.2 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 103
- Nets
- 122
- Pads
- 383
- Tracks, vias
- 572, 159
- Pours
- 24
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 11 Oct 2026
- Updated
- 27 Oct 2026
Overview
HoG is an open-source printed circuit board by GoTouchGra55, from the GoTouchGra55/HoG repository on GitHub, published under the MIT licence. It is a 4-layer board of 127.1 × 58.2 mm with 103 parts on 122 nets, routed with 572 tracks and 159 vias.
It is built around the BMP581, ICM-45686 and TPS54302. Its parts include 37 capacitors, 23 resistors, 19 connectors, 6 ICs and 2 diodes. It belongs with the robots and motor control boards and the STM32 boards of this library.
Main components
3
BMP581
LGA-10(2x2)-40℃~+85℃ 0.5pa/K 1.71V~3.6V 1uA 30Kpa~1.25bar 6pa I2C、SPI、I3C LGA-10(2x2) Pressure Sensors ROHSBosch SensortecPressure Sensors
ICM-45686
LGA-14(3x2.5)-40℃~+85℃ 1.71V~3.6V 16bit 2.2uA 8KB IMU (accelerometer + gyroscope) Motion event detection SPI、I2C X,Y,Z X,Y,Z ±32g ±4000dps LGA-14(3x2.5) Accelerometers ROHSTDK InvenSenseAccelerometers
TPS54302
UncategorisedTexas Instruments
README
README.mdHoG FC
This repository includes the custom flight controller, a PDU, and a telemetry unit that is to be used in the drone.
Overviews
Hand of God flight controller is a custom STM32-based drone flight computer intended to be deployed for humanitarian aid missions.
See FC Schematics See Telemetry Schematics
Routing
Features
Core
- STM32H743 Cortex-M7 MCU
- Up to 480 MHz CPU clock
- MicroSD storage
- SWD debugging
- USB-C
- Barometer
- Gyroscope & Accelerometer
- GPS/GNSS
Power
The flight controller board provides dedicated:
- 22.2 V rail (6s nominal)
- 5 V rail
- 3.3 V rail
Rough BOM
| # | Item | Cost | Supplier |
|---|---|---|---|
| 1 | PCBs | $299.96 | JLCPCB |
| 2 | SMD Resistors | $8.35 | Daraz Nepal |
| 3 | SMD Capacitors | $7.98 | Daraz Nepal |
| Total | $316.29 |
Authors 👥
Shaurya (Electronics)
Contact: E-mail
Parts
103| Qty | Value | Footprint | References |
|---|---|---|---|
| 23 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3, C12, C13, C15, C16, C17, C18, C19, C20, C21, C23, C26, C28, C31 +7 |
| 10 | 10K | Resistor_SMD:R_0402_1005Metric | R1, R15, R16, R17, R18, R19, R20, R21, R22, R23 |
| 6 | 10uF | Capacitor_SMD:C_0603_1608Metric | C7, C10, C11, C22, C27, C38 |
| 3 | 100K | Resistor_SMD:R_0603_1608Metric | R6, R11, R14 |
| 2 | 18pF | Capacitor_SMD:C_0402_1005Metric | C8, C9 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric | C14, C34 |
| 2 | 30K | Resistor_SMD:R_0603_1608Metric | R5, R12 |
| 2 | 400K | Resistor_SMD:R_0603_1608Metric | R4, R10 |
| 2 | 49.9R | Resistor_SMD:R_0402_1005Metric | R7, R9 |
| 2 | 5.1K | Resistor_SMD:R_0402_1005Metric | R2, R3 |
| 2 | D_Schottky | Diode_SMD:D_SOD-123 | D1, D2 |
| 2 | ICM-45686 | ICM45686:IC_ICM-45686 | U2, U3 |
| 2 | LOGO | LOGO | G***, G*** |
| 2 | POWER | Connector_AMASS:AMASS_XT60-M_1x02_P7.20mm_Vertical | J7, J7 |
| 2 | TPS54302 | Package_TO_SOT_SMD:SOT-23-6 | U5, U6 |
| 1 | +5V Pads | Connector_Wire:SolderWirePad_1x01_SMD_1x2mm | J16 |
| 1 | 10uH | Inductor_SMD:L_Cenker_CKCS3012 | L1 |
| 1 | 13.3K | Resistor_SMD:R_0402_1005Metric | R8 |
| 1 | 22.1K | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | 25MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 33uF | Capacitor_SMD:C_0603_1608Metric | C24 |
| 1 | 44uF | Capacitor_SMD:C_0603_1608Metric | C30 |
| 1 | 56pF | Capacitor_SMD:C_0402_1005Metric | C29 |
| 1 | 6.8uH | Inductor_SMD:L_Cenker_CKCS4030 | L2 |
| 1 | 75pF | Capacitor_SMD:C_0402_1005Metric | C25 |
| 1 | AUX | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal | J18 |
| 1 | BMP581 | BMP581:BMP581 | U4 |
| 1 | DEBUG | Connector_JST:JST_EH_S5B-EH_1x05_P2.50mm_Horizontal | J1 |
| 1 | ESC[1-3] | Connector_Wire:SolderWire-0.5sqmm_1x03_P4.6mm_D0.9mm_OD2.1mm | J5 |
| 1 | ESC[4-6] | Connector_Wire:SolderWire-0.5sqmm_1x03_P4.6mm_D0.9mm_OD2.1mm | J6 |
| 1 | ESC_1 | Connector_Wire:SolderWire-0.5sqmm_1x02_P4.8mm_D0.9mm_OD2.3mm | J8 |
| 1 | ESC_2 | Connector_Wire:SolderWire-0.5sqmm_1x02_P4.8mm_D0.9mm_OD2.3mm | J9 |
| 1 | ESC_3 | Connector_Wire:SolderWire-0.5sqmm_1x02_P4.8mm_D0.9mm_OD2.3mm | J10 |
| 1 | ESC_4 | Connector_Wire:SolderWire-0.5sqmm_1x02_P4.8mm_D0.9mm_OD2.3mm | J11 |
| 1 | ESC_5 | Connector_Wire:SolderWire-0.5sqmm_1x02_P4.8mm_D0.9mm_OD2.3mm | J12 |
| 1 | ESC_6 | Connector_Wire:SolderWire-0.5sqmm_1x02_P4.8mm_D0.9mm_OD2.3mm | J13 |
| 1 | FerriteBead | Capacitor_SMD:C_0603_1608Metric | FB1 |
| 1 | GPS | Connector_JST:JST_EH_S6B-EH_1x06_P2.50mm_Horizontal | J3 |
| 1 | Micro_SD_Card_Det1 | Connector_Card:microSD_HC_Hirose_DM3AT-SF-PEJM5 | J17 |
| 1 | Power | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal | J15 |
| 1 | STM32H743VITx | Package_QFP:LQFP-100_14x14mm_P0.5mm | U1 |
| 1 | SW_Push | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW2 |
| 1 | SW_SPDT | Button_Switch_SMD:SW_SPDT_PCM12 | SW1 |
| 1 | Servos | Connector_Wire:SolderWire-0.5sqmm_1x03_P4.6mm_D0.9mm_OD2.1mm | J14 |
| 1 | TEL | Connector_JST:JST_EH_S5B-EH_1x05_P2.50mm_Horizontal | J4 |
| 1 | TYPE-C_16PIN_2MD__073_ | USBC-16:SHOUHAN_TYPE-C_16PIN_2MD__073_ | J2 |
The 95 most common of 103 parts.
Questions
How big is the HoG PCB?
It measures 127.1 × 58.2 mm and has 4 copper layers, 1.6 mm thick.
What parts does the HoG use?
103 parts, built around the BMP581, ICM-45686 and TPS54302. 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 HoG KiCad files?
From the GoTouchGra55/HoG repository on GitHub, at the commit this page was made from: the board is Kicad/FC/HoG.kicad_pcb and its schematic Kicad/FC/HoG.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the HoG design in my own project?
Its repository publishes it under the MIT 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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