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2 layers17.4 × 53.1 mmPtConfig, the printed circuit board in 3D

A configuration cable for the ptFlex, ptSolar, and ptSolarHF trackers, capable of configuring and supplying power.

Size
17.4 × 53.1 mm
Copper layers
2
Thickness
1.6 mm
Parts
13
Nets
19
Pads
54
Tracks, vias
71, 43
Pours
1
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
26 Apr 2026
Updated
26 Apr 2026

Overview

PtConfig is an open-source printed circuit board by custom-ds, from the custom-ds/ptConfig repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 17.4 × 53.1 mm with 13 parts on 19 nets, routed with 71 tracks and 43 vias.

It is built around the CH340X. Its parts include 4 connectors, 2 capacitors, 2 resistors, 2 diodes and 1 IC.

Main components

1

README

README.md

ptConfig

The ptConfig is a USB Micro powered serial adapter cable, capable of supplying power and configuring a ptSolar, ptSolarHF, and the newest models of ptFlex trackers..

3D rendering of the ptSolar circuit board.

ptSolar schematic diagram.

The Circuit Board

The circuit board is designed in Kicad and features a 2-layer design.

Parts

13
QtyValueFootprintReferences
210nFCapacitor_SMD:C_0805_2012MetricC1, C2
21kResistor_SMD:R_0805_2012MetricR1, R6
26 Pin Male HeaderConnector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_VerticalJ1, J4
2GreenDiode_SMD:D_0805_2012MetricD1, D2
1CH340XPackage_SO:MSOP-10_3x3mm_P0.5mmU1
1PolyfuseFuse:Fuse_1206_3216MetricF1
1ProgrammingConnector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_VerticalJ2
1Reset SwitchButton_Switch_SMD:SW_SPST_PTS647_Sx38SW1
1USB_B_MicroConnector_USB:USB_Micro-B_Wuerth_629105150521J3

Questions

How big is the PtConfig PCB?

It measures 17.4 × 53.1 mm and has 2 copper layers, 1.6 mm thick.

What parts does the PtConfig use?

13 parts, built around the CH340X. 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 PtConfig KiCad files?

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

Can I use the PtConfig design in my own project?

Its repository publishes it under the GPL-3.0 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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