Changes

=== Controller Single Module x 4 (one single rotary encoder each PCB) ===

=== Controller Single Module x 4 (one single rotary encoder each PCB) ===

This step is a bit tricky. Remember that, if you follow the instructions before, you have soldered the pin-rows in the bottom side of PCBs, so numbering is reversed when looking from bottom. You can use a little trick: if you rotate the PCB 180º, then numbering is "left to right" again ;-)

This step is a bit tricky. Remember that, if you followed the instructions before, you have soldered the pin-rows in the bottom side of PCBs, so numbering is reversed when looking from bottom. You can use a little trick: if you rotate the PCB 180º, then numbering is "left to right" again ;-)

So '''you should look at your controller modules from bottom side and with the pin-row on the top of PCB!'''

So '''you should look at your controller modules from bottom side and with the pin-row on the top of PCB!'''

=== Writing the image to the SD card ===

=== Writing the image to the SD card ===

If you got the whole image you can write it to an SD-card. Depending on your OS you have to choose how to create the SD-card. You need a minimum size of 16GB, better 32GB for more sample-sets in future. There is a really good manual for this at [https://www.raspberrypi.org/documentation/installation/installing-images/ | https://www.raspberrypi.org/documentation/installation/installing-images/].

If you successfully downloaded the whole image, you can now write it to an SD-card.

 

You need a minimum size of 16GB, better 32GB SDcard to allow for more instruments and sample-sets in future.

 

 

Or do it manually: Depending on your OS you have to choose how to create the SD-card.  There is a really good manual for this at [https://www.raspberrypi.org/documentation/installation/installing-images/ | https://www.raspberrypi.org/documentation/installation/installing-images/].

== First boot ==

== First boot ==