

Interface Tester
DIY universal taster actor for the KNX bus.
- Size
- 62.8 × 18.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 17
- Nets
- 11
- Pads
- 59
- Tracks, vias
- 116, 8
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 13 Aug 2018
- Updated
- 6 Jan 2025
Overview
Interface Tester is an open-source printed circuit board by basilfx, from the basilfx/KNX-Universal-Taster repository on GitHub. It is a 2-layer board of 62.8 × 18.5 mm with 17 parts on 11 nets, routed with 116 tracks and 8 vias.
Its parts include 8 switches, 6 diodes and 3 connectors. It belongs with the interfaces and adapters boards of this library.
README
pcb/Universal-Taster/README.mdUniversal Taster
Features
- ARM Cortex M4 CPU with 1 MiB of flash and 256 KiB of RAM
- Compatible with OnSemi NCN5120 and NCN5121
- 8 Mbit SPI NOR flash
- 6 universal GPIO pins
- 2 pins for I2C
- 2 RX/TX pins (without header)
- 30x30x15 mm footprint (including connector)
Pictures
Board
Schema
You can find the schema here.
Compatibility
This board is compatible with the OnSemi NCN5121 or the OnSemi NCN5120.
BoM
The (interactive) BoM can be found here.
Parts
17| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | SW | Button_Switch_THT:SW_PUSH_6mm | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 |
| 6 | LED | LED_SMD:LED_0603_1608Metric | D1, D2, D3, D4, D5, D6 |
| 1 | I2C | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | INTERFACE | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J1 |
| 1 | PWR | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
Questions
How big is the Interface Tester PCB?
It measures 62.8 × 18.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Interface Tester use?
17 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 Interface Tester KiCad files?
From the basilfx/KNX-Universal-Taster repository on GitHub, at the commit this page was made from: the board is pcb/Interface-Tester/Interface-Tester.kicad_pcb and its schematic pcb/Extensions/DSMR-Connector/DSMR-Connector.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Interface Tester design in my own project?
Its repository states no licence, so its author keeps all rights: ask basilfx before reusing the design.
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