2 layers178 × 145 mm
Ultra DB X51 v1
ExploreEmbedded/8051_DevelopmentBoard
Design files and sample code for 8051 development Ultra Boards
145 parts70
2 layers130.5 × 64 mm
Fenix
HacDC/fenix2HacDC SpaceBlimp VIII
- Size
- 130.5 × 64 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 24
- Nets
- 82
- Pads
- 206
- Tracks, vias
- 314, 22
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 30 Nov 2025
- Updated
- 27 Mar 2026
Overview
Fenix is an open-source printed circuit board by HacDC, from the HacDC/fenix repository on GitHub, published under the GPL-2.0 licence. It is a 2-layer board of 130.5 × 64 mm with 24 parts on 82 nets, routed with 314 tracks and 22 vias.
It is built around the BC548. Its parts include 8 connectors, 3 resistors, 2 capacitors, 2 diodes and 1 transistor. It belongs with the RP2040 boards of this library.
Main components
1README
README.mdFranken-Fenix
Supported Development Platforms
In theory it shouldn't really matter what operating system your computer uses. This may or may not be the case in practice:
-
Ubuntu: works
-
MacOS: Doesn't work: arm issue
-
Windows Subsystem for Linux: Operational (at least with Ubuntu noble)
-
NixOS: Does not work (NixOS/nixpkgs#372653). Ivan is trying to find a workaround that we can use until the proper fix is merged (NixOS/nixpkgs#477552).
Setup
-
If you haven't already done so, you must first install Nix. The official installation guide can be found here: https://nix.dev/install-nix
-
Any time you open a new terminal window, you will need to run
nix develop.
Parts
24| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3_ADR1, J4_LORA_PWR1, J4_SRV_EN1 |
| 2 | 1N5817 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2 |
| 2 | 4k7 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2 |
| 2 | ~ | Parts:GY-SHT31-D | TEMP_EXT1, TEMP_INT1 |
| 1 | 100nF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C1 |
| 1 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
| 1 | 4.7nF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C2 |
| 1 | BC548 | Package_TO_SOT_THT:TO-92_Inline | Q1 |
| 1 | LOGO | LOGO | G*** |
| 1 | PWR_IN | TerminalBlock_Altech:Altech_AK100_1x02_P5.00mm | J5 |
| 1 | PWR_MON | Connector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_Vertical | J4 |
| 1 | Radio 2.5mm | Parts:TRS_2.5mm | J3 |
| 1 | Radio 3.5mm | Parts:TRS_3.5mm | J1 |
| 1 | RaspberryPi_Pico | Module:RaspberryPi_Pico_Common_Unspecified | A1 |
| 1 | Relay_Control | Connector_Phoenix_MSTB:PhoenixContact_MSTBVA_2,5_3-G_1x03_P5.00mm_Vertical | J2 |
| 1 | ~ | Parts:LORA32_V4 | LoRa32_V1 |
| 1 | ~ | Parts:Adafruit_PCA9685 | Servo_Controller1 |
| 1 | ~ | Parts:Adafruit_BNO055 | Gyro1 |
| 1 | ~ | Parts:Generic_uSD | uSD1 |
Questions
How big is the Fenix PCB?
It measures 130.5 × 64 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Fenix use?
24 parts, built around the BC548. 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 Fenix KiCad files?
From the HacDC/fenix repository on GitHub, at the commit this page was made from: the board is electronics/Fenix.kicad_pcb and its schematic electronics/Fenix.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Fenix design in my own project?
Its repository publishes it under the GPL-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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