2 layers50.8 × 50.8 mm
LED7seg 4a1
CmdrZin/Educational-Projects
A group of educational projects to promote hardware and software development.
16 parts1MIT
2 layers63.5 × 86.4 mm
ATtinyDemoBoard
CmdrZin/Educational-Projects1A group of educational projects to promote hardware and software development.
- Size
- 63.5 × 86.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 23
- Nets
- 48
- Pads
- 122
- Tracks, vias
- 152, 1
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 4 Jan 2026
- Updated
- 7 Jul 2026
Overview
ATtinyDemoBoard is an open-source printed circuit board by CmdrZin, from the CmdrZin/Educational-Projects repository on GitHub, published under the MIT licence. It is a 2-layer board of 63.5 × 86.4 mm with 23 parts on 48 nets, routed with 152 tracks and 1 via.
Its parts include 11 connectors, 3 ICs, 1 resistor and 1 diode. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
README.mdEducational-Projects
A group of educational projects to promote hardware and software development. Zip files of projects can be found at https://www.gameactive.org/dist/
==================
Educational projects
| Name | Description |
|---|---|
| IntroToArduino | An Educational package on how to program using the Arduino IDE. |
| Beyond Arduino | A guide to learning the AVR series of microcontrollers. |
Parts
23| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1, J4 |
| 2 | Conn_01x07 | Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Vertical | J2, J5 |
| 2 | Conn_01x10 | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J3, J6 |
| 2 | Jumper_2_Open | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | JP4, JP5 |
| 1 | 390 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | ATtiny14SIOC | Custom:ATtiny14SIOC-BB | U2 |
| 1 | ATtiny20SIOC | Custom:ATtiny20SIOC-BB | U3 |
| 1 | ATtiny8SIOC | Custom:ATtiny8SIOC-BB | U1 |
| 1 | Conn_01x01 | Connector_PinSocket_2.54mm:PinSocket_1x01_P2.54mm_Vertical | J11 |
| 1 | Conn_01x02 | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J7 |
| 1 | Conn_01x06 | Custom:PinSocket_1x06_P2.54mm_Horizontal__FTDI | J8 |
| 1 | Conn_01x08 | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Horizontal | J9 |
| 1 | Conn_02x03_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J10 |
| 1 | Jumper_3_Open | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | JP1 |
| 1 | LED | Diode_SMD:D_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
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Questions
How big is the ATtinyDemoBoard PCB?
It measures 63.5 × 86.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ATtinyDemoBoard use?
23 parts. 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 ATtinyDemoBoard KiCad files?
From the CmdrZin/Educational-Projects repository on GitHub, at the commit this page was made from: the board is BeyondArduino/KiCad/ATtinyDemoBoard/ATtinyDemoBoard.kicad_pcb and its schematic BeyondArduino/KiCad/ATtiny14SIOC/ATtiny14SIOC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ATtinyDemoBoard 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).