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## Site setup in progress

Welcome to the MiniNetPad wiki!

MiniNetPad is an Open Hardware project, so source files have been posted. This project is licensed under CERN Open Hardware Licence v.1.2 http://ohwr.org/cernohl

MiniNetPad is a board I designed for a few projects. It runs Arduino software. It is based on the ATSAMD21G18A cpu that the Arduino ZERO uses and uses the ZERO boot firmware. The board can also be configured to run CircuitPython.

Finished Board Top View

Why MiniNetPad? As I was building hobby projects I found I needed some common features when using Arduino, so I created MiniNetPad to solve that issue. Now MiniNetPad can be reused from project to project.

Project designed with KiCad Ver 5.1.2

Zip file with design files: MiniNetPad_V0.01a.zip

Schematic file: MiniNetPad_V0.01a.SCH.pdf

BOM file: MiniNetPad_V0.01a.BOM.pdf

Bare board can be ordered from OSH Park. https://oshpark.com/shared_projects/rFaZbuVc with project name MiniNetPad_V0.kicad_pcb or use source files and order from whoever you want.

MiniNetPad features.

1. Uses Arduino ZERO boot firmware.
2. CPU is an ATSAMD21G18A.
3. Has a RT6222 buck based power supply, so wider range of power can be used.
4. Has a 10/100 network interface W5500 and supporting builtin 802.3af PoE LTC4267.
5. Support for external RA8875(Adafruit) with 7 inch TFT and touch screen.
6. Has MicroSD slot.
7. Has RTC Clock DS3231 chip with battery backup.
8. 2 Meg of flash memory GD25Q16C.
9. 1 NEO pixel.
10. MCP23008 I/O.
11. ADS1115 AtoD.
12. MCP4725 DtoA.
13. Buzzer.
14. One 16 pin and one 20 pin external jacks.