Push button This IPSO object is used to report the state of a momentary action push button control and to count the number of times the control has been operated since the last observation. 3347 urn:oma:lwm2m:ext:3347:1.1 1.0 1.1 Multiple Optional Digital Input State R Single Mandatory Boolean The current state of a digital input. Digital Input Counter R Single Optional Integer The cumulative value of active state detected. Application Type RW Single Optional String The application type of the sensor or actuator as a string depending on the use case. Timestamp R Single Optional Time The timestamp of when the measurement was performed. Fractional Timestamp R Single Optional Float 0..1 s Fractional part of the timestamp when sub-second precision is used (e.g., 0.23 for 230 ms).