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6 layers73 × 50 mmSoft starter, the printed circuit board in 3D

Arduino project for soft start led strips, imitating incandescent bulbs

Size
73 × 50 mm
Copper layers
6
Thickness
1.6 mm
Parts
24
Nets
15
Pads
67
Tracks, vias
112, 0
Routed
Yes
KiCad
KiCad 8.0 (file 20240108)
Created
19 Mar 2024
Updated
13 May 2024

Overview

Soft starter is an open-source printed circuit board by Susensio, from the Susensio/soft-starter repository on GitHub. It is a 6-layer board of 73 × 50 mm with 24 parts on 15 nets, routed with 112 tracks and 0 vias.

It is built around the ATTINY13-20PU. Its parts include 7 resistors, 5 capacitors, 4 connectors, 3 transistors and 2 ICs. It belongs with the AVR (ATmega, ATtiny) boards of this library.

Main components

1

Parts

24
QtyValueFootprintReferences
410kResistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR2, R3, R5, R7
3200Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR1, R4, R6
330N06Package_TO_SOT_THT:TO-220-3_VerticalQ1, Q2, Q3
21uCapacitor_THT:CP_Radial_D4.0mm_P1.50mmC1, C2
2P10kPotentiometer_THT:Potentiometer_Bourns_3296X_HorizontalRV1, RV2
1100nCapacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mmC3
1470uCapacitor_THT:CP_Radial_D8.0mm_P5.00mmC6
147uCapacitor_THT:CP_Radial_D5.0mm_P2.50mmC4
1ATtiny13-20PPackage_DIP:DIP-8_W7.62mmU1
1External DC-DC 5VLibrary:5V 3A BUCK ALIEXPRESSU3
1INPUT 12 VTerminalBlock:TerminalBlock_bornier-2_P5.08mmJ1
1LED1TerminalBlock_TE-Connectivity:TerminalBlock_TE_282834-2_1x02_P2.54mm_HorizontalJ2
1LED2TerminalBlock_TE-Connectivity:TerminalBlock_TE_282834-2_1x02_P2.54mm_HorizontalJ3
1LED3TerminalBlock_TE-Connectivity:TerminalBlock_TE_282834-2_1x02_P2.54mm_HorizontalJ4
1ResetButton_Switch_THT:SW_Tactile_Straight_KSL0Axx1LFTRSW1

Questions

How big is the Soft starter PCB?

It measures 73 × 50 mm and has 6 copper layers, 1.6 mm thick.

What parts does the Soft starter use?

24 parts, built around the ATTINY13-20PU. 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 Soft starter KiCad files?

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

Can I use the Soft starter design in my own project?

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

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