Unipi 1.1 can be expanded by up to 56 relays. For this purpose is used the I²C expansion module EMO-R8, which can be purchased in our e-shop. Instructions for use with SW Mervis can be found here on this link.
The module can be connected using the RJ11 connection cable included in the package.
Up to 7 different addresses can be set for this expansion module, so up to 7 of these modules can be connected to Unipi 1.1. The following table describes the position of the jumpers for setting the I²C address.
A2 | A1 | A0 | HEX | DEC | Popis | |||
---|---|---|---|---|---|---|---|---|
0 | 0 | 0 | 20 | 32 | Address reserved for relay on Unipi 1.1 | |||
0 | 0 | 1 | 21 | 33 | Free address | |||
0 | 1 | 0 | 22 | 34 | Free address | |||
0 | 1 | 1 | 23 | 35 | Free address | |||
1 | 0 | 0 | 24 | 36 | Free address | |||
1 | 0 | 1 | 25 | 37 | Free address | |||
1 | 1 | 0 | 26 | 38 | Free address | |||
1 | 1 | 1 | 27 | 39 | Free address |