First of all this product is on sale on Tindie !

Second, i made a new HW release with the I2C pull-up issue resolved. 

For resolving the problem i just split the P-UP jumper in two.
I already update the documentation on GitHub.

I also made a very useful bed of nails for programming and testing the boards.

For the testing purpose i used an Arduino board that simulate the encoder rotation, the address jumpers and check the LED voltage.