2 layers70 × 100 mm
2 layers153.8 × 100.3 mm
Easter Egg AGH
KNEAGHUST/PCB_Easter_Egg_AGH1- Size
- 153.8 × 100.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 77
- Nets
- 42
- Pads
- 166
- Tracks, vias
- 257, 147
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 25 Mar 2026
- Updated
- 25 Mar 2026
Overview
Easter Egg AGH is an open-source printed circuit board by KNEAGHUST, from the KNEAGHUST/PCB_Easter_Egg_AGH repository on GitHub, published under the MIT licence. It is a 2-layer board of 153.8 × 100.3 mm with 77 parts on 42 nets, routed with 257 tracks and 147 vias.
It is built around the ATTINY402-SSN, AO3401A and BC817, with the CR2032 among its other parts. Its parts include 29 resistors, 25 diodes, 6 connectors, 5 transistors and 1 IC. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
4
ATTINY402-SSN
SOIC-8-40℃~+105℃ 1.8V~5.5V 10bit 128Byte 20MHz 256Byte 4KB 6 8 Bit AVR Built-in FLASH SOIC-8 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
AO3401A
SOT-231 P-Channel 14nC@10V 30V 47mΩ@10V、60mΩ@4.5V、85mΩ@2.5V 4A 55pF 645pF 80pF 900mV SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETsBC817
SOT-231 NPN 100nA 150MHz 300mW 40 45V 500mA 5V 700mV NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)
CR2032
-- Unclassified goods ROHSMaxellUncategorised
Parts
77| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25 +8 |
| 24 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24 +8 |
| 6 | , , , , , | ||
| 5 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4, R5 |
| 4 | AO3401A | Package_TO_SOT_SMD:SOT-323_SC-70 | Q1, Q2, Q3, Q5 |
| 4 | Conn_01x04_Pin | LocalFootprintLib:Multi_board_connector | J3, J4, J5, J6 |
| 2 | LOGO | LOGO | G***, G*** |
| 1 | ATtiny402-SS | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | BC817 | Package_TO_SOT_SMD:SOT-23 | Q4 |
| 1 | CR2032 | LocalFootprintLib:BC-2002 | J1 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2 |
| 1 | D_Schottky_Dual_CommonCathode_AAK | Package_TO_SOT_SMD:SOT-23 | D1 |
| 1 | SW_Omron_B3FS | Libraries:SW_Push_1P1T_NO_6x6mm_H9.5mm | SW1 |
The 75 most common of 77 parts.
Questions
How big is the Easter Egg AGH PCB?
It measures 153.8 × 100.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Easter Egg AGH use?
77 parts, built around the ATTINY402-SSN, AO3401A, BC817 and CR2032. 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 Easter Egg AGH KiCad files?
From the KNEAGHUST/PCB_Easter_Egg_AGH repository on GitHub, at the commit this page was made from: the board is KiCAD Files/Easter_Egg_AGH/Easter_Egg_AGH.kicad_pcb and its schematic KiCAD Files/Easter_Egg_AGH/Easter_Egg_AGH.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Easter Egg AGH 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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