2 layers55 × 84.4 mm
2 layers116 × 64.5 mm
AirCooler
VimuthWickramasinghe/AirCooler- Size
- 116 × 64.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 12
- Nets
- 19
- Pads
- 70
- Tracks, vias
- 76, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 7 Sep 2026
- Updated
- 7 Sep 2026
Overview
AirCooler is an open-source printed circuit board by VimuthWickramasinghe, from the VimuthWickramasinghe/AirCooler repository on GitHub. It is a 2-layer board of 116 × 64.5 mm with 12 parts on 19 nets, routed with 76 tracks and 0 vias.
It is built around the HLK-5M05. Its parts include 5 connectors, 2 resistors, 2 ICs, 2 switches and 1 diode.
Main components
1Parts
12| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | Relay module | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3, J4 |
| 2 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW2, SW3 |
| 1 | 10k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R4 |
| 1 | 220 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R3 |
| 1 | HLK-5M05 | Converter_ACDC:Converter_ACDC_Hi-Link_HLK-5Mxx | U3 |
| 1 | JST connector Water level | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J2 |
| 1 | LED-Green | LED_THT:LED_D5.0mm | D1 |
| 1 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_MaiXu_MX126-5.0-02P_1x02_P5.00mm | J5 |
| 1 | Water Overflow | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | ~ | RF_Module:ESP32-C3-WROOM-02 | U1 |
Questions
How big is the AirCooler PCB?
It measures 116 × 64.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the AirCooler use?
12 parts, built around the HLK-5M05. 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 AirCooler KiCad files?
From the VimuthWickramasinghe/AirCooler repository on GitHub, at the commit this page was made from: the board is AirCooler.kicad_pcb and its schematic AirCooler.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the AirCooler design in my own project?
Its repository states no licence, so its author keeps all rights: ask VimuthWickramasinghe before reusing the design.
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