2 layers79.5 × 59.5 mm DCC LNET BASE, the printed circuit board in 3D

DCC LNET BASE

dccServoDecoder

Size: 79.5 × 59.5 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 36
Nets: 43
Pads: 136
Tracks, vias: 464, 92
Pours: 1
Routed: Yes
KiCad: KiCad 6 (file 20211014)
Created: 29 Mar 2023
Updated: 5 Apr 2023

Overview

DCC LNET BASE is an open-source printed circuit board by bask185, from the bask185/dccServoDecoder repository on GitHub. It is a 2-layer board of 79.5 × 59.5 mm with 36 parts on 43 nets, routed with 464 tracks and 92 vias.

It is built around the ATMEGA328-AU, LM311 and BC847. Its parts include 12 resistors, 6 capacitors, 5 ICs, 5 diodes and 3 connectors. It belongs with the AVR (ATmega, ATtiny) boards of this library.

Main components

README

README.md

Loconet and/or DCC servo decoder

Parts

Qty	Value	Footprint	References
3	10k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R3, R4, R25
3	D	Diode_SMD:D_SOD-323	D1, D2, D3
2	100nF	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C3, C402
2	10k	Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder	R1, R2
2	12pF	Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder	C1, C2
2	RJ12	Connector_RJ:RJ12_Amphenol_54601	J17, J18
1	100uF	Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder	C403
1	150k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R26
1	1k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R28
1	1k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R5
1	220k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R23
1	22k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R27
1	330nF	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C401
1	47k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R24
1	6N137	Package_SO:SOP-8_6.62x9.15mm_P2.54mm	U3
1	6k2	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R6
1	ATmega328-A	Package_QFP:TQFP-32_7x7mm_P0.8mm	U1
1	BC847	Package_TO_SOT_SMD:SOT-23	Q1
1	D_Bridge_+-AA	Diode_SMD:Diode_Bridge_Diotec_ABS	D401
1	HEADER_3x2	Connector_PinSocket_1.27mm:PinSocket_2x03_P1.27mm_Vertical	U2
1	L78L05_SOT89	Package_TO_SOT_SMD:SOT-89-3	U401
1	LED	LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder	D4
1	LM311	Package_SO:SOIC-8_3.9x4.9mm_P1.27mm	U15
1	SW_SPST	Button_Switch_SMD:SW_SPST_SKQG_WithStem	SW1
1	Screw_Terminal_01x02	TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal	J1
1	crystal_arduino	custom_kicad_lib_sk:crystal_arduino	Y1

The 34 most common of 36 parts.

Questions

How big is the DCC LNET BASE PCB?

It measures 79.5 × 59.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the DCC LNET BASE use?

36 parts, built around the ATMEGA328-AU, LM311 and BC847. 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 DCC LNET BASE KiCad files?

From the bask185/dccServoDecoder repository on GitHub, at the commit this page was made from: the board is DCC_LNET_BASE.kicad_pcb and its schematic DCC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the DCC LNET BASE design in my own project?

Its repository states no licence, so its author keeps all rights: ask bask185 before reusing the design.

Category and platform

AVR (ATmega, ATtiny)

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/bask185-dccservodecoder" title="DCC LNET BASE 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/bask185-dccservodecoder.jpg" alt="DCC LNET BASE" width="1200" height="900">

A picture that opens the board, for a README

[![DCC LNET BASE](https://pcbkit.io/embed/boards/bask185-dccservodecoder.jpg?size=s)](https://pcbkit.io/boards/bask185-dccservodecoder)

Source

Repository: bask185/dccServoDecoder
Board file: DCC_LNET_BASE.kicad_pcb
Commit: 8ca8583
Licence: Not stated

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