

Castle PCB
- Size
- 99.9 × 99.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 106
- Nets
- 71
- Pads
- 297
- Tracks, vias
- 563, 71
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 4 Nov 2022
- Updated
- 16 Feb 2024
Overview
Castle PCB is an open-source printed circuit board by IvarNilsson, from the IvarNilsson/Castle_Automation repository on GitHub, published under the MIT licence. It is a 2-layer board of 99.9 × 99.9 mm with 106 parts on 71 nets, routed with 563 tracks and 71 vias.
It is built around the ESP32-DEVKITC-VE and 74HC595. Its parts include 69 diodes, 21 resistors, 6 ICs, 4 switches and 2 connectors. It belongs with the ESP32 boards of this library.
Main components
2README
README.mdCastle_Automation

Parts
106| Qty | Value | Footprint | References |
|---|---|---|---|
| 67 | LED | LED_THT:LED_D5.0mm | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +51 |
| 15 | 220 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R16, R19, R20, R21 |
| 5 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R12, R13, R14, R15, R18 |
| 4 | ~ | Button_Switch_THT:SW_PUSH-12mm | SW1, SW2, SW3, SW4 |
| 2 | 74HC595 | Package_DIP:DIP-16_W7.62mm_LongPads | U2, U3 |
| 1 | 1N4001 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D66 |
| 1 | Buzzer | Buzzer_Beeper:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | Conn_01x05_Pin | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J1 |
| 1 | ESP32-DEVKITC | ESP32-DEVKITC:MODULE_ESP32-DEVKITC | U1 |
| 1 | LED_RGBA | Ivar_lib:RGB_led_THT | D65 |
| 1 | LM35-LP | Package_TO_SOT_THT:TO-92_Inline | U6 |
| 1 | NPN | Package_TO_SOT_THT:TO-92L_Inline | Q1 |
| 1 | R_Photo | Ivar_lib:PhotoResistor | R17 |
| 1 | ~ | Ivar_lib:RFID-RC522 | U5 |
| 1 | ~ | Ivar_lib:oled_0.96 | U4 |
The 104 most common of 106 parts.
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Questions
How big is the Castle PCB PCB?
It measures 99.9 × 99.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Castle PCB use?
106 parts, built around the ESP32-DEVKITC-VE and 74HC595. 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 Castle PCB KiCad files?
From the IvarNilsson/Castle_Automation repository on GitHub, at the commit this page was made from: the board is Castle_PCB/Castle_PCB.kicad_pcb and its schematic Castle_PCB/Castle_PCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Castle PCB 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).