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2 layers50 × 47.3 mmSR Aktor, the printed circuit board in 3D

Switch Relais Aktor N2k

Size
50 × 47.3 mm
Copper layers
2
Thickness
1.6 mm
Parts
26
Nets
60
Pads
117
Tracks, vias
131, 10
Pours
5
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
6 Apr 2025
Updated
15 Oct 2026

Overview

SR Aktor is an open-source printed circuit board by gerryvel, from the gerryvel/SR-Aktor repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 50 × 47.3 mm with 26 parts on 60 nets, routed with 131 tracks and 10 vias.

It is built around the SN65HVD230D, TSR 1-2450 and BCR523, with the S1G, B360 and B72530T0300K062 among its other parts. Its parts include 8 diodes, 3 ICs, 3 transistors, 3 switches and 2 capacitors. It belongs with the ESP32 and RISC-V boards of this library.

Main components

9

README

README.md

SR Actor

ESP32 Relaise lastcommit OBP

Description

This repository shows how to switch 3 relais (je 4A max with 2x2A contacts) from Chartplotter with CZone Support and also with the website support.

  • Switching Relais Aktor

and send it as NNMEA2000 meassage.

  • PGN 127501 // Binary Status Report
  • PGN 127502 // Binary Switch Control
  • PGN 126208 // Switch Control for B&G
  • PGN 130817
  • PGN 65283
  • PGN 65284
  • PGN 65288
  • PGN 65290 CZone

In addition, the operation of the relays, data and settings can be accessed via the website.

Based on the work of

The project requires the NMEA2000 and the NMEA2000_esp32 libraries from Timo Lappalainen: https://github.com/ttlappalainen.

This project is part of OpenBoatProject

Wiring diagram

grafik

PCB Layout

PCB by Aisler: Link

grafik grafik

Website

grafik

image

image

Chartplotter

I use an B&G Vulcan 7 with Czone Support, after import the file:

Configure Czone file with the CZone Configuration tool V 6.29.22

Fotos

image image image

Changes

  • Version 1.3.2 CZone funtion with B&G Vulcan okay
  • Version 1.0 Function with Website control, Monitor on NMEA200 okay (PGN127501)

Parts

26
QtyValueFootprintReferences
3BCR523PCM_Package_TO_SOT_SMD_AKL:SOT-23Q1, Q2, Q3
3IM03Eigene:Relay_DPDT_AXICOM_IMSeries_Pitch5.08mmK1, K2, K3
3S1GPCM_Diode_SMD_AKL:D_SMAD6, D7, D8
110kResistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_HorizontalR2
1300RResistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_HorizontalR1
1B360Diode_SMD:D_SMCD2
1B72530T0300K062Fuse:Fuse_1210_3225Metric_Pad1.42x2.65mm_HandSolderRV1
1C10µCapacitor_Tantalum_SMD:CP_EIA-7343-15_Kemet-W_Pad2.25x2.55mm_HandSolderC1
1C22µCapacitor_Tantalum_SMD:CP_EIA-7343-15_Kemet-W_Pad2.25x2.55mm_HandSolderC2
1Conn_01x04_PinConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ1
1Conn_02x03_PinConnector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_VerticalJ2
1EPCO B82789C0513Eigene:B82789C0113N002FL1
1ESP32-HuzzahEigene:Adafruit_ESP32U2
1LED_RBKGEigene:PinHeader_1x04_P2.00mm_LED RGBD4
1OpenBoat LogoEigene:OpenboatslogoG1
1P4SMAJ26CAPCM_Diode_SMD_AKL:D_SMA_TVSD1
1PESD1CANPCM_Package_TO_SOT_SMD_AKL:SOT-23D5
1SMCJ6.5CAPCM_Diode_SMD_AKL:D_SMC_TVSD3
1SN65HVD230Package_SO:SOIC-8_3.9x4.9mm_P1.27mmU3
1TSR_1-2450Converter_DCDC:Converter_DCDC_TRACO_TSR-1_THTU1

Questions

How big is the SR Aktor PCB?

It measures 50 × 47.3 mm and has 2 copper layers, 1.6 mm thick.

What parts does the SR Aktor use?

26 parts, built around the SN65HVD230D, TSR 1-2450, BCR523 and S1G. 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 SR Aktor KiCad files?

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

Can I use the SR Aktor 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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