From the course: IoT Foundations: Operating System Applications
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Overview of sensing and actuation
From the course: IoT Foundations: Operating System Applications
Overview of sensing and actuation
- [Instructor] Sensors and actuators are commonly considered as the bedrock of IoT. Sensing or actuation is considered as the basic capabilities of an IoT device. Sensors and actuators can be viewed as typical peripherals extended from your processors or microcontrollers, where they can be manipulated through the software interfaces. They can be physically connected to your IoT device through some standard hardware interfaces, such as general purpose input output ports, buses, and serial communication ports. In an OS, the software interface of making the sensors and actuators useful is through the sensor or actuator drivers. Most operating systems provide a hardware-independent layer that can allow us to manipulate peripherals. Let's look at some options to manipulate peripherals. First, we can simply do the polling approach to, for example, control the LEDs directly through the software interface, whenever needed. For example, to control an LED, you can just send a high or low…
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