The ESP8266_5x4+4 module is WiFi, designed for DIN mounting, compatible with the ESP Easy firmware, with integration for HOME ASSISTANT.
The communication to the Home assistant is through the MQTT protocol.
Supports 5 relay outputs SPDT, + 4 inputs 220V AC - yes / no 220V AC, + 4 inputs dry contact type, active level is a connection to ground.
These inputs and outputs are visible as GPIO 1-16 of the MCP23017.
The dry contact inputs have pull-up resistors 5.1k and a series LED to 3.3V.
GPIO13 - 1wire terminal has a pull-up resistor 4.7k to 3.3V.

The ESP8266 2X2 module is WiFi, designed for DIN mounting, compatible with ESP Easy firmware, with integration for HOME ASSISTANT.
Communication to the Home assistant иis via the MQTT protocol.
Supports 2 relay outputs SPDT, + 2 inputs 220V AC - yes / no 220V AC.
With jumpers J1 and J2 both inputs can be switched as ground / dry contact inputs, at 3.3V level, and in case of refusal not to use inputs, the I2C protocol can be used.
The module supports the 1WIRE protocol as well as UART. possible integration for sensors: