4 layers71.5 × 54.4 mm
2 layers
Practice1
m3llo0n/stat-pcb1schematic + pcb for the new tech
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 11
- Nets
- 12
- Pads
- 42
- Tracks, vias
- 40, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 8 Jul 2025
- Updated
- 12 Sep 2026
Overview
Practice1 is an open-source printed circuit board by m3llo0n, from the m3llo0n/stat-pcb repository on GitHub. It is a 2-layer board with 11 parts on 12 nets, routed with 40 tracks and 0 vias.
It is built around the ATTINY85-20PU. Its parts include 4 resistors, 3 switches, 2 diodes, 1 IC and 1 connector. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdstat-pcb
Schematic and PCB layout for the Student Tech Against Trafficking (STAT) project
Code will be found in another repository (I think maybe, ask @m3llo0n)
Parts
11| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 1k | Resistor_SMD:R_0201_0603Metric | R1, R2 |
| 1 | 200 | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | 200 | Resistor_SMD:R_0201_0603Metric | R4 |
| 1 | ATTINY85-20PU | ATTINY85_20PU:DIP762W46P254L927H533Q8B | U1 |
| 1 | Conn_02x01 | Connector_PinHeader_1.27mm:PinHeader_2x01_P1.27mm_Vertical_SMD | J1 |
| 1 | LED | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D2 |
| 1 | LED | LED_SMD:LED_0201_0603Metric | D1 |
| 1 | SW_DPST_x2 | Button_Switch_THT:SW_DIP_SPSTx02_Slide_6.7x6.64mm_W7.62mm_P2.54mm_LowProfile | SW3 |
| 1 | SW_Push_Dual_x2 | Button_Switch_THT:SW_Push_2P1T_Toggle_CK_PVA1xxH2xxxxxxV2 | SW2 |
| 1 | SW_Push_Dual_x2 | Button_Switch_THT:SW_Push_2P1T_Toggle_CK_PVA1xxH1xxxxxxV2 | SW1 |
Questions
What parts does the Practice1 use?
11 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 Practice1 KiCad files?
From the m3llo0n/stat-pcb repository on GitHub, at the commit this page was made from: the board is practice-circuit/practice1.kicad_pcb and its schematic PCB downloads/stat project.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Practice1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask m3llo0n before reusing the design.
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