The WiFi Analog/Digital WiFi Gas Sensor Module reads analog and/or digital data from a gas sensor, returns the values and responds according to programmable limits. It uses MQTT for communication. Signal output is suitable for controlling relays when analog data is less or greater than a programmable value or when digital data changes value (0->1 or 1->0). The analog/digital WiFi Gas Sensor control module reads analog data and digital data coming from a gas sensor through its 2 input terminals marked as DIG and ANL respectively. The GND and VCC are convenience access for powering the digital/analog sensor. Input analog data limits are zero VDC to 3.3VDC, and this maps into output values of 0 to 1024 Input digital data limits are zero, for a digital zero, and 3.3VDC for a digital 1 The module sends the value of the measured analog data periodically every Interval milliseconds, and it sends the value of the measured digital data when this changes from 0 to 1 or from 1 to 0. The user can also request the module to send the measured values of analog and/or digital data at any time by publishing a specific MQTT topic; more on this later The module provides a triggering signal whenever the digital data changes (Figure 1) The module provides a triggering signal when the analog signal is less than a preset value or larger than a preset value (Figure 2)