Splitter for 1-Wire and I2C bus. Works with e.g. DS18B20 and AM2320 sensors. The 4 sockets with a white border on the board are universal (I2C/1-Wire), the others are only for 1-Wire bus (DS18B20). The extension cable should be connected to one of the universal sockets.
The 1 relays board. After connecting to GSM v3 controller, relay can be turn on/off. Main application is managing by up electric devices. Note: Power supply 8.4-30V.