What is the difference between Zigbee and Wi-Fi smart-home sensors?

Zigbee sensors use a low-power mesh that needs a hub or USB coordinator but sips battery and keeps data local; Wi-Fi sensors connect straight to your router but use more power and often depend on a cloud app.

What is a mmWave presence sensor?

A mmWave radar sensor detects tiny movements such as breathing, so it can tell a room is occupied even when someone sits perfectly still — something ordinary PIR motion sensors cannot do.

16-Channel I2C PWM/Servo-Driver Board

For makers coordinating several servo or PWM outputs from an I2C interface.

SKU BLZ-220

$19.99

16-Channel I2C PWM/Servo-Driver Board is part of the BooLabz Sensors, Robotics & Smart Home collection: the sensors, cameras, servo drivers, and robot kits that let projects perceive and move.

Why we shortlisted it

For makers coordinating several servo or PWM outputs from an I2C interface.

Listed as

16 channel PWM/Servo Servo driver board IIC Control board

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FAQs

What is the difference between Zigbee and Wi-Fi smart-home sensors?: Zigbee sensors use a low-power mesh that needs a hub or USB coordinator but sips battery and keeps data local; Wi-Fi sensors connect straight to your router but use more power and often depend on a cloud app.
What is a mmWave presence sensor?: A mmWave radar sensor detects tiny movements such as breathing, so it can tell a room is occupied even when someone sits perfectly still — something ordinary PIR motion sensors cannot do.