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2 layers40.6 × 36.8 mmKTYSimulator, the printed circuit board in 3D

Control unit for sauna oven. Ensures comfort and safety.

Size
40.6 × 36.8 mm
Copper layers
2
Thickness
1.6 mm
Parts
21
Nets
17
Pads
47
Tracks, vias
0, 0
Routed
Not yet
KiCad
KiCad 9.0 (file 20241229)
Created
24 Jan 2026
Updated
22 Mar 2026

Overview

KTYSimulator is an open-source printed circuit board by JuergenMH, from the JuergenMH/SaunaControlUnit repository on GitHub. It is a 2-layer board of 40.6 × 36.8 mm with 21 parts on 17 nets.

Its parts include 15 resistors and 1 connector.

README

README.md

SaunaControlUnit

Control unit for sauna oven. Ensures comfort and safety. Cheap control units are good for regualation and some basic safetey functions. This project is designed to add some comfort and safety topics

  • Enhanced safety by control internal power lines and oven function
  • Enhanced comfort: Acceess via WLAN
  • Two relay banks to ensure the system in case of one relay fails

Folders: Components: Datasheets and information hardware component related Documents: Planning Documents SaunaPCB: KiCAD folder for schematic and PCB design files Simulation: Folder for LTSpice simulation fils Firmware: Planned for firmware files, currently empty

Sorry, some documents are available in German only ;-)

Parts

21
QtyValueFootprintReferences
4100Potentiometer_THT:Potentiometer_Bourns_3005_HorizontalR103, R106, R109, R112
4150Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR102, R105, R108, R114
21K5Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR101, R113
11K8Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR104
12KPotentiometer_THT:Potentiometer_Alps_RK09Y11_Single_HorizontalR115
12K2Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR107
13K3Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR110
147Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR111
1Conn_01x02_SocketConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ101
1JP_0-100°CConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJP105
1JP_0°CConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJP101
1JP_100°CConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJP104
1JP_25°CConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJP102
1JP_50°CConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJP103

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Questions

How big is the KTYSimulator PCB?

It measures 40.6 × 36.8 mm and has 2 copper layers, 1.6 mm thick.

What parts does the KTYSimulator use?

21 parts. 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 KTYSimulator KiCad files?

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

Can I use the KTYSimulator design in my own project?

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