2 layers30 × 29.3 mm
PRJ
Juniper-Rueter/PR-J
A universal load cell amplifier for communication with klipper and an open standard for strain gauges
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2 layers
SMD solderingChallenge
tinyledmatrix/SMD-solderingChallengeAnother take on a SMD soldering Challenge
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 16
- Nets
- 13
- Pads
- 41
- Tracks, vias
- 47, 10
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 18 May 2025
- Updated
- 11 Jun 2025
Overview
SMD solderingChallenge is an open-source printed circuit board by tinyledmatrix, from the tinyledmatrix/SMD-solderingChallenge repository on GitHub. It is a 2-layer board with 16 parts on 13 nets, routed with 47 tracks and 10 vias.
It is built around the ATTINY202-SSN. Its parts include 5 resistors, 5 diodes, 1 capacitor, 1 IC and 1 connector. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdongoing Work
Parts
16| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | ATtiny202-SS | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | Battery_Cell | Battery:BatteryHolder_Multicomp_BC-2001_1x2032 | BT2 |
| 1 | C | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | LED | LED_SMD:LED_1206_3216Metric | D1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D3 |
| 1 | LED | LED_SMD:LED_0201_0603Metric | D5 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D2 |
| 1 | LED | LED_SMD:LED_0402_1005Metric | D4 |
| 1 | LOGO | LOGO | G*** |
| 1 | MountingHole_Pad | MountingHole:MountingHole_4.3mm_M4_DIN965_Pad | H1 |
| 1 | R | Resistor_SMD:R_0201_0603Metric | R5 |
| 1 | R | Resistor_SMD:R_0805_2012Metric | R2 |
| 1 | R | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | R | Resistor_SMD:R_1206_3216Metric | R1 |
| 1 | R | Resistor_SMD:R_0402_1005Metric | R4 |
Questions
What parts does the SMD solderingChallenge use?
16 parts, built around the ATTINY202-SSN. 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 SMD solderingChallenge KiCad files?
From the tinyledmatrix/SMD-solderingChallenge repository on GitHub, at the commit this page was made from: the board is Kicad/SMD-solderingChallenge.kicad_pcb and its schematic Kicad/SMD-solderingChallenge.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SMD solderingChallenge design in my own project?
Its repository states no licence, so its author keeps all rights: ask tinyledmatrix before reusing the design.
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