6 layers75 × 78.4 mm
Poe backplate
dotstartech/wall-panel
Wall mounted 4 inch touch display panel with CM4 inside
125 parts445
4 layers78 × 79 mm
Nfc tuning
dotstartech/wall-panel445Wall mounted 4 inch touch display panel with CM4 inside
- Size
- 78 × 79 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 31
- Nets
- 19
- Pads
- 79
- Tracks, vias
- 66, 8
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 9 Jan 2026
- Updated
- 24 Aug 2026
Overview
Nfc tuning is an open-source printed circuit board by dotstartech, from the dotstartech/wall-panel repository on GitHub. It is a 4-layer board of 78 × 79 mm with 31 parts on 19 nets, routed with 66 tracks and 8 vias.
Its parts include 14 capacitors, 4 resistors, 3 ICs, 2 connectors and 2 inductors. It belongs with the computers and single-board computers and radio and wireless boards of this library.
README
README.mdWall Panel
Wall Panel is a 4-inch wall-mounted touch display panel powered by Raspberry Pi Compute Module 4 (CM4). It features a 720x720 IPS multitouch display and can be used as a Home Assistant dashboard or any other embedded display application.
Display
We use this display, but touch variant. It is 4 lane MIPI with i2c touch controller.
- Display driver: ST7703
- Touch driver: FT6336U
Possible use cases
- Home Assistant Dashboard. Perfect for wall-mounted smart home control panels with full touch interaction and high-resolution display.
- Information Display. Show weather, calendar, news, or any other dynamic content in your home or office.
- Control Panel. Use as a centralized control interface for IoT devices, lighting, or home automation systems.
- Embedded Display. Build custom applications using the full power of Raspberry Pi OS or any Linux distribution on the CM4.
List of features
- 720x720 IPS Display with multitouch support
- Raspberry Pi Compute Module 4 as the main brain
- External RTC for accurate timekeeping
- USB-C for data and power
- USB-OTG support for device mode
- Action Button for user interaction
- WiFi connectivity
- 40-pin GPIO Header for Raspberry Pi compatibility
- SD Card slot for storage expansion
- Micro HDMI output for external displays
- EEPROM Flashing capability for firmware updates
- Backplane Connector for power and data from the wall and future PoE backplate support
Parts
31| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | HL-SMA-KHD | brushknight:SMA-TH_HL-SMA-KHD2 | U1, U2, U3 |
| 2 | 1.3K | Resistor_SMD:R_0402_1005Metric | R12, R13 |
| 2 | 150pF | Capacitor_SMD:C_0402_1005Metric | C21, C24 |
| 2 | 160nH | Inductor_SMD:L_0603_1608Metric | L2, L3 |
| 2 | 1nF | Capacitor_SMD:C_0402_1005Metric | C25, C26 |
| 2 | 2.2K | Resistor_SMD:R_0402_1005Metric | R9, R11 |
| 2 | 270pF | Capacitor_SMD:C_0402_1005Metric | C19, C20 |
| 2 | 56pF | Capacitor_SMD:C_0402_1005Metric | C27, C28 |
| 2 | 68pF | Capacitor_SMD:C_0402_1005Metric | C22, C23 |
| 2 | 82pF | Capacitor_SMD:C_0402_1005Metric | C16, C17 |
| 2 | G*** | kibuzzard-6A70487D | kibuzzard-6A70487D, kibuzzard-6A70487D |
| 2 | Mic Adafruit | Adafruit_SPH0645LM4H:SPH0645LM4H | J5, J5 |
| 2 | NC | Capacitor_SMD:C_0402_1005Metric | C15, C18 |
| 2 | NFC_ANT_70x25_N3 | brushknight:NFC_ANT_70x25_N3 | AE1, AE2 |
| 1 | G*** | kibuzzard-6A730F68 | kibuzzard-6A730F68 |
| 1 | G*** | kibuzzard-6A730F73 | kibuzzard-6A730F73 |
Questions
How big is the Nfc tuning PCB?
It measures 78 × 79 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Nfc tuning use?
31 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 Nfc tuning KiCad files?
From the dotstartech/wall-panel repository on GitHub, at the commit this page was made from: the board is pcb/nfc-tuning/nfc-tuning.kicad_pcb and its schematic pcb/add-on-nfc/add-on-nfc.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Nfc tuning design in my own project?
Its repository states no licence, so its author keeps all rights: ask dotstartech before reusing the design.
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dotstartech/wall-panel
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4 parts445
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