Since 2018-11 we use an Arduino MKR Zero with an Ethernet Shield to control the mux. This board has the pinout for the MKR Zero, and prvovides 10-pin IDC headers for two ribbon-cables to the Mux-boards as well as two front-panel status LEDs and two Buttons.
- J4 and J5 provide the 14+14 pin connector for the MKR Zero
- MUX1 and MUX2 are 10-pin IDC headers for ribbon-cables to the MUX-boards
PDF of the Schematic, PCB, and Gerber production files can be downloaded below:
- MKR_ZERO_carrier_2018-11_Schematic.pdf
- MKR_ZERO_carrier_2018-11_PCB.pdf
- MKR_ZERO_carrier_2018-11_Gerbers.zip
In 2019, the MKR ZERO carrier design was updated, the v3 PCB and layouts can be downloaded below: