IoT boards help us to perform sensing and actuating. To build a decision system with IoT boards, we can use a sensing process on IoT boards as input parameters for our decision system. After performing decision computing, we can make some actions through actuating on IoT boards.

In general, we can integrate our decision system with IoT boards, as shown in the following figure:

Several sensor devices can be attached to the IoT board that is used for sensing. Depending on what you need; you can gather environmental data, such as temperature, as digital inputs that will be used for our decision system. You can see samples of sensor devices in the following figure:

Several actuator devices can be used in our decision system. Each final output from a system can be mapped into an action. This action can be represented as turning on an actuator device.

Some systems may not do sensing on their environment to gather input data. We can obtain data from a database or another system through a network.