What is model of your neotrellis boards?
The board probably can communicate directly between devices, looks to have 12c port.
If not, any (GPIO) pin can be used for i2c communications, completely software driven, although perhaps at a slower speed.
some of these packages do that: https://pypi.org/search/?q=i2c+%2B+GPIO&o=
The board probably can communicate directly between devices, looks to have 12c port.
If not, any (GPIO) pin can be used for i2c communications, completely software driven, although perhaps at a slower speed.
some of these packages do that: https://pypi.org/search/?q=i2c+%2B+GPIO&o=