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  • Author Author: bernhardmayer
  • Date Created: 14 Jan 2020 6:22 AM Date Created
  • Views 1240 views
  • Likes 6 likes
  • Comments 2 comments
  • arduino uno mkr1000 shield
  • arduino uno
  • arduino mkr
  • adapter
  • arduino
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Arduino MKR adapter

bernhardmayer
bernhardmayer
14 Jan 2020

image

This is just a dumb adapter to use Arduino Uno compatible shields with Arduino MKR. There also exists an official MKR2UNO Adapter (https://store.arduino.cc/mkr2uno-adapter ) but I didn't like its layout so I made may own.

 

There are mainly two reasons for this:

 

Stacking of boards

The MKR2UNO is layouted that the Arduino MKR sits between the adapter PCB and the Arduino Uno shield. So there is only limited space for the Arduino MKR. On my layout both boards sit on opposite side of the adapter pcb. So you can stack any side as high as you want.

 

Placement of SPI pins

The Arduino has its SPI functions on pin 11, 12 and 13. Some shields use SPI on these pins and don't use the SPI header. On my adapter these pins are connected to the dedicated SPI pins of the Arduino MKR board. So you can use hardware SPI with the Arduino Uno shields. On the MKR2UNO these pins are connected elsewhere.

image

 

Layout

Here are images of top and bottom side of the PCB.

imageimage

 

Data and pcbs

The board was made with KiCAD and the data is available on github: https://github.com/generationmake/MKRadapter

PCBs are also available at Aisler: https://aisler.net/p/CTMHERNO

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Top Comments

  • bernhardmayer
    bernhardmayer over 5 years ago in reply to dubbie +1
    yes, the adapter is always handy when i have to use old Arduino shields or ST nucleo boards with the new MKR boards. You only have to be careful with the 3.3V IO voltage. Bernhard
  • bernhardmayer
    bernhardmayer over 5 years ago in reply to dubbie

    yes, the adapter is always handy when i have to use old Arduino shields or ST nucleo boards with the new MKR boards. You only have to be careful with the 3.3V IO voltage.

    Bernhard

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  • dubbie
    dubbie over 5 years ago

    Looks like a good useful PCB.

     

    Dubbie

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