I verified the functionality of the RPi with the new board.

There is test code here

This is forked from Goran Lundberg's code for the original board at https://github.com/GoranLundberg/SonarI2C-RPi

Many thanks to him for this.

I've only tweaked the code, not the docs.

Components for the first batch of th OctoSonar 2.1 are in the mail, so I should be able to bake them up next weekend.

2.1 is 2.0 with

• input pins on grid
• full re-route
• silkscreen rework
• add i2c pullups