2. IoT Hardware

The hardware utilized in IoT systems includes devices for a remote  dashboard,  devices for control, servers, a routing or bridge device, and sensors. These devices manage key tasks and functions such as system activation, action specifications, security, communication, and detection to support-specific goals and actions. 

Sensors

The most important hardware in IoT might be its sensors. These devices consist of energy modules, power management modules,  RF modules,  and  sensing modules.  RF modules manage communications through their signal processing, WIFI, ZigBee, Bluetooth, radio transceiver, duplexer, and BAW.

The sensing module manages  sensing through assorted active and passive measurement devices. Here is a list of some of the measurement devices used in IoT:

•     Accelerometer
•     Magnetometer
•     Gyroscope
•     Acoustics Sensor
•     Pressure Sensor
•     Humidity Sensor
•     Temperature Sensor
•     Proximity Sensor
•     Image Sensor
•     Light sensor
•     Gas RFID Sensors
•     Microflow Sensor

Wearable Electronics devices

Wearable electronic devices are small devices worn on the head, neck, arms, torso, and feet.

Current smart wearable devices include:

• Head – Helmets, glasses
• Neck – Jewelry, collars
• Arm – Watches, wristbands, rings
• Torso – Clothing, backpacks
• Feet – Socks, shoes

Standard Devices

The desktop, tablet, and cellphone remain integral parts of IoT as the command center and remotes.

• The desktop provides the user with the highest level of control over the system and its settings.
• The tablet provides access to the key features of the system in a way resembling the desktop, and also acts as a remote.
• The cellphone allows some essential settings modification and also provides remote functionality.
• Other key connected devices include standard network devices like routers and switches.

Refrences:- https://www.tutorialspoint.com/