2 layers22.2 × 46.4 mm
C64-Switchless Quad Kernal Switcher
bwack/C64-Switchless-Multi-Kernal-27C256-adapter
Kernal switcher for the C64/C64C/C128
14 parts112
2 layers70 × 57 mm
1732 FreshmanDay
ryukoposting/1732_FreshmanDayTeam 1732 Freshman Day Board
- Size
- 70 × 57 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 12
- Nets
- 13
- Pads
- 35
- Tracks, vias
- 32, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 17 Aug 2026
- Updated
- 17 Aug 2026
Overview
1732 FreshmanDay is an open-source printed circuit board by ryukoposting, from the ryukoposting/1732_FreshmanDay repository on GitHub. It is a 2-layer board of 70 × 57 mm with 12 parts on 13 nets, routed with 32 tracks and 0 vias.
It is built around the ATTINY85-20PU. Its parts include 2 resistors, 2 diodes, 1 capacitor, 1 IC and 1 connector. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
1Parts
12| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | NeoPixel_THT | LED_THT:LED_D5.0mm-4_RGB | D1, D2 |
| 1 | 0.1u | Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm | C1 |
| 1 | 1.5 | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R2 |
| 1 | 330 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | ATtiny85-20P | Package_DIP:DIP-8_W7.62mm_Socket_LongPads | U1 |
| 1 | Bypass Switch | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | JST_XH 2P | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J1 |
| 1 | Limiter Bypass | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP2 |
| 1 | SW_SPDT | footprints:1825232-1_TEC | SW1 |
The 10 most common of 12 parts.
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Questions
How big is the 1732 FreshmanDay PCB?
It measures 70 × 57 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 1732 FreshmanDay use?
12 parts, built around the ATTINY85-20PU. 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 1732 FreshmanDay KiCad files?
From the ryukoposting/1732_FreshmanDay repository on GitHub, at the commit this page was made from: the board is 1732_FreshmanDay.kicad_pcb and its schematic 1732_FreshmanDay.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the 1732 FreshmanDay design in my own project?
Its repository states no licence, so its author keeps all rights: ask ryukoposting before reusing the design.