This document specifies standard IQRF sensor device DPA commands and FRC commands.
The ID of this standard is 0x5E.
The standard is implemented using one DPA peripheral and three DPA commands. It is intended for various sensor combinations; regardless it is a device containing:
a) only one sensor (mono-sensor),
b) more sensors of the same type (poly-sensor) and/or a combination of
c) more sensors of different types (multi-sensor).
The device supporting this standard can contain up to 32 sensors of any of the predefined types (quantities). Each sensor type defines a quantity, a unit, and a resolution when returning sensor data at DPA response caused by DPA request or returned by FRC. The sensors implemented by the device are addressed (indexed) consecutively using the index starting from index 0 up to 31. No index “gaps” are allowed.
An example of the device implementing 4 sensors:
1. The 1st sensor at index 0: temperature sensor,
2. The 2nd sensor at index 1: temperature sensor,
3. The 3rd sensor at index 2: CO2 sensor and
4. The 4th sensor at index 3: humidity sensor.
The following chapters describe the standard in more detail. Also, see provided Custom DPA Handler source code examples for the best practice implementation details.
All values wider than byte are encoded using little-endian style unless otherwise specified.