2 layers19.2 × 69.6 mm CozySolder, the printed circuit board in 3D

CozySolder

production : gerbers for production and bom bom : html interactive bom LIB : component library used Doc : 3d model , images , schematic (pdf) , etc s

Open in PCBKit

Size: 19.2 × 69.6 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 48
Nets: 45
Pads: 137
Tracks, vias: 286, 31
Pours: 148
Routed: Yes
KiCad: KiCad 10.0 (file 20260206)
Created: 15 Sep 2025
Updated: 25 Sep 2026

Overview

CozySolder is an open-source printed circuit board by CUERT-dev, from the CUERT-dev/ElectricalRndD_TeamDev repository on GitHub. It is a 2-layer board of 19.2 × 69.6 mm with 48 parts on 45 nets, routed with 286 tracks and 31 vias.

It is built around the 74HC595 and NE555D. Its parts include 23 resistors, 16 diodes, 3 capacitors, 3 ICs and 2 connectors.

Main components

README

Esp32_RCcontrollerV0/README.md

RC NodeMcu 32s shield

Onboard Buck Converter (12V--->5V)
Reverse Connection protection for the 12V input
8x 5V digital outputs (Level Shifted from 3.3V using BOB-12009 or similar) screw terminated
2x Dac outputs (IO25, IO26) screw terminated
4x ADC inputs (IO35, IO34, IO39, IO36) screw terminated
3x 5V screw terminal (Outputs)
I2C , Uart0 Headers

Warning

Never Connect usb to the esp32, while plugging in the 12V input (At least remove the buck enable header)

production : gerbers for production and bom
bom : html interactive bom
LIB : component library used
Doc : 3d model , images , schematic (pdf) , etc s

Parts

Qty	Value	Footprint	References
16	220	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16
16	LED	LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder	D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16
3	47k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R26, R28, R29
2	10k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R17, R20
2	1u	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C1, C3
2	20k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R25, R27
2	74HC595	Package_SO:SOIC-16_3.9x9.9mm_P1.27mm	U2, U3
2	Conn_01x05_Pin	liblocal:SolderWirePad_1x01_SMD_2x4mm	J1, J2
1	100n	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C2
1	2N2222	Package_TO_SOT_SMD:SOT-23_Handsoldering	Q1
1	NE555D	Package_SO:SOIC-8_3.9x4.9mm_P1.27mm	U1

Questions

How big is the CozySolder PCB?

It measures 19.2 × 69.6 mm and has 2 copper layers, 1.6 mm thick.

What parts does the CozySolder use?

48 parts, built around the 74HC595 and NE555D. 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 CozySolder KiCad files?

From the CUERT-dev/ElectricalRndD_TeamDev repository on GitHub, at the commit this page was made from: the board is CozySolder/CozySolder.kicad_pcb and its schematic CozySolder/CozySolder.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the CozySolder design in my own project?

Its repository states no licence, so its author keeps all rights: ask CUERT-dev before reusing the design.

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/cuert-dev-electricalrndd-teamdev-cozysolder" title="CozySolder in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/cuert-dev-electricalrndd-teamdev-cozysolder.jpg" alt="CozySolder" width="1200" height="900">

A picture that opens the board, for a README

[![CozySolder](https://pcbkit.io/embed/boards/cuert-dev-electricalrndd-teamdev-cozysolder.jpg?size=s)](https://pcbkit.io/boards/cuert-dev-electricalrndd-teamdev-cozysolder)

Source

Repository: CUERT-dev/ElectricalRndD_TeamDev
Board file: CozySolder/CozySolder.kicad_pcb
Commit: 03bd72c
Licence: Not stated

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