2 layers100 × 59 mm
Coolgirl NES Rev6.x
viuhimciuc/coolgirl-nes-multicart
Ultimate multigame cartridge for Nintendo Entertainment System (NES)
66 parts
2 layers40 × 40 mm
Designed for educational use, this minimalistic LED-based project offers an accessible and effective platform for learning the fundamentals of soldering, electronics, and programming. Originally developed for university workshops, its simplicity and modularity make it suitable for a wide range of educational settings.
- Size
- 40 × 40 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 12
- Pads
- 29
- Tracks, vias
- 29, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 22 Jul 2025
- Updated
- 15 Aug 2026
Overview
MCLB is an open-source printed circuit board by leandroebner, from the leandroebner/Morse-Code-LED-Blinker repository on GitHub, published under the CERN-OHL-S-2.0 licence. It is a 2-layer board of 40 × 40 mm with 8 parts on 12 nets, routed with 29 tracks and 0 vias.
It is built around the ATTINY13A-SU and CR2032. Its parts include 2 diodes, 1 capacitor, 1 resistor, 1 IC and 1 connector. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2README
README.md
Morse Code LED Blinker
[!WARNING] This repository is a work in progress and subject to major changes and updates. The release of the project's source code is currently underway.
Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | 100nF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1 |
| 1 | 15mA 1V | Diode_THT:D_DO-35_SOD27_P10.16mm_Horizontal | D1 |
| 1 | 20mA 1.8V-2.4V | LED_THT:LED_D3.0mm | D2 |
| 1 | 390Ω | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | ATtiny13A | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | CR2032 | Battery:BatteryHolder_MYOUNG_BS-07-A1BJ001_CR2032 | BT1 |
| 1 | Pinheader 6x 2.54mm | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J1 |
| 1 | SPDT | foots:SW_SS12D07VG4 | S1 |
Questions
How big is the MCLB PCB?
It measures 40 × 40 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MCLB use?
8 parts, built around the ATTINY13A-SU and CR2032. 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 MCLB KiCad files?
From the leandroebner/Morse-Code-LED-Blinker repository on GitHub, at the commit this page was made from: the board is source/MCLB.kicad_pcb and its schematic source/MCLB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MCLB design in my own project?
Its repository publishes it under the CERN-OHL-S-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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