2 layers100 × 100 mm
LinearPS
profdc9/LinearPS
Linear constant constant/current constant voltage power supply PCB
102 parts14
2 layers100 × 79 mm
Projeto uselless box
PPdC2007/PCBsProjects of Printed Circuit Boards made through Kicad.
- Size
- 100 × 79 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 16
- Nets
- 48
- Pads
- 74
- Tracks, vias
- 76, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 21 Oct 2026
- Updated
- 30 Oct 2026
Overview
Projeto uselless box is an open-source printed circuit board by PPdC2007, from the PPdC2007/PCBs repository on GitHub. It is a 2-layer board of 100 × 79 mm with 16 parts on 48 nets, routed with 76 tracks and 0 vias.
It is built around the ARDUINO UNO R3 and TIP41. Its parts include 6 connectors, 3 resistors, 1 transistor and 1 switch. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2README
README.mdPCBs
Projects of Printed Circuit Boards made through Kicad.
Parts
16| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | Conn_01x01_Pin | Connector_PinSocket_2.54mm:PinSocket_1x01_P2.54mm_Vertical | J4, J5, J6 |
| 3 | Motor_Servo-Edit | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | M1, M2, M3 |
| 1 | 10kR | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 1kR | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 1 | 80R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2 |
| 1 | Arduino_UNO_R3 | Module:Arduino_UNO_R3 | A1 |
| 1 | Conn_Para_Fita | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J2 |
| 1 | Conn_Para_PowerBank | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J3 |
| 1 | SW_DPST_x2 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | SW1 |
| 1 | Speaker | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | LS1 |
| 1 | TIP41 | Package_TO_SOT_THT:TO-220-3_Vertical | Q1 |
| 1 | ~ | Arduino_Nano:DFPlayer | J1 |
Questions
How big is the Projeto uselless box PCB?
It measures 100 × 79 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Projeto uselless box use?
16 parts, built around the ARDUINO UNO R3 and TIP41. 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 Projeto uselless box KiCad files?
From the PPdC2007/PCBs repository on GitHub, at the commit this page was made from: the board is projeto-uselless-box/projeto-uselless-box.kicad_pcb and its schematic projeto-uselless-box/projeto-uselless-box.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Projeto uselless box design in my own project?
Its repository states no licence, so its author keeps all rights: ask PPdC2007 before reusing the design.
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