2 layers70.1 × 43.2 mm
Iaq device
nkitanov/iaq_board
IAQ Board is a DIY (Do-It-Yourself) device for measuring internal air quality
19 parts396
2 layers
Relay Board
ehsanamid/Relay-Board- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 9
- Nets
- 16
- Pads
- 44
- Tracks, vias
- 115, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 29 Jan 2026
- Updated
- 30 Jan 2026
Overview
Relay Board is an open-source printed circuit board by ehsanamid, from the ehsanamid/Relay-Board repository on GitHub. It is a 2-layer board with 9 parts on 16 nets, routed with 115 tracks and 0 vias.
It is built around the WEMOS D1 MINI. Its parts include 4 connectors and 1 IC. It belongs with the home automation and IoT boards and the ESP8266 boards of this library.
Main components
1Parts
9| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_CUI:TerminalBlock_CUI_TB007-508-02_1x02_P5.08mm_Horizontal | J2 |
| 1 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_Xinya_XY308-2.54-2P_1x02_P2.54mm_Horizontal | J5 |
| 1 | Screw_Terminal_01x10 | TerminalBlock_CUI:TerminalBlock_CUI_TB007-508-10_1x10_P5.08mm_Horizontal | J4 |
| 1 | Screw_Terminal_01x10 | TerminalBlock:TerminalBlock_Xinya_XY308-2.54-10P_1x10_P2.54mm_Horizontal | J1 |
| 1 | WEMOS_D1_mini | RF_Module:WEMOS_D1_mini_light | U1 |
Questions
What parts does the Relay Board use?
9 parts, built around the WEMOS D1 MINI. 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 Relay Board KiCad files?
From the ehsanamid/Relay-Board repository on GitHub, at the commit this page was made from: the board is Relay-Board.kicad_pcb and its schematic Relay-Board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Relay Board design in my own project?
Its repository states no licence, so its author keeps all rights: ask ehsanamid before reusing the design.
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