Tier 2 support can be expected on the following boards, mostly because I don't test these as often: ATtiny85 (8 MHz ATtiny85) Arduino Pro Mini (16 MHz ATmega328P) Mini Mega 2560 (Arduino Mega 2560 compatible, 16 MHz ATmega2560) Teensy LC (48 MHz ARM Cortex-M0+) Some utilities work...
Scratchbuild a MULTI-Module- Build the module from scratch using perfboard base, an Arduino Pro Mini and discrete components. The last option is where it all started and how the pioneers in this project made their boards. However, due to the growing interest in “one module to rule them ...
Install I2Cwrapper from the Arduino library manager. You'll find an I2Cwrapper examples folder in the usual menu after successful installation. If you haven't done so yet, you'll also have to install thelibraries needed by the modulesyou want to use, e.g. AccelSteppper, TM1638lite, etc...