2 layers36.2 × 40.6 mm
2 layers29.5 × 38.3 mm
Back pcb
slimcdk/lkf-smart-switch2LK FUGA compatible ESP32 [ESPHome] smart switch
- Size
- 29.5 × 38.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 11
- Pads
- 42
- Tracks, vias
- 38, 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 30 Dec 2024
- Updated
- 30 Jan 2025
Overview
Back pcb is an open-source printed circuit board by slimcdk, from the slimcdk/lkf-smart-switch repository on GitHub. It is a 2-layer board of 29.5 × 38.3 mm with 8 parts on 11 nets, routed with 38 tracks and 2 vias.
It is built around the IRM-02-3.3S and MOC3021M. Its parts include 3 connectors, 2 resistors, 1 IC and 1 transistor. It belongs with the home automation and IoT and lEDs and displays boards and the ESP32 boards of this library.
Main components
2README
README.mdFeel free to support me and the development I do!
4-Button LK FUGA compatible insert
[!IMPORTANT] Work in progress.
Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | 330R | Resistor_SMD:R_1210_3225Metric | R2 |
| 1 | 430R | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | BT136-500 | Package_TO_SOT_SMD:TO-252-2 | Q1 |
| 1 | IRM-02-3.3S | Converter_ACDC:Converter_ACDC_MeanWell_IRM-02-xx_SMD | PS1 |
| 1 | Inter_PCB_Conn | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | MOC3021M | Package_DIP:DIP-6_W7.62mm_SMDSocket_SmallPads | U2 |
| 1 | Mains_In_Conn | WAGO_2061_602:2061-602_998-404 | J2 |
| 1 | Mains_Out_Conn | WAGO_2061_602:2061-602_998-404 | J1 |
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Questions
How big is the Back pcb PCB?
It measures 29.5 × 38.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Back pcb use?
8 parts, built around the IRM-02-3.3S and MOC3021M. 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 Back pcb KiCad files?
From the slimcdk/lkf-smart-switch repository on GitHub, at the commit this page was made from: the board is circuits/1u-back-pcb/back-pcb.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Back pcb design in my own project?
Its repository states no licence, so its author keeps all rights: ask slimcdk before reusing the design.