Multi sensor module for Raspberry Pi
Sense Hat for Raspberry is a small additional module that can be connected to a Raspberry Pi.
This module contains multiple sensors like a temperature, humidity, air pressure sensors and a gyroscope.
It also got a LED panel which can be programmed.
You can show your sensor data on it for example.
The Sense Hat also got two programmable buttons.
This device is a nice solution if you don’t want to buy every sensor seperate.
There are also many tutorials that let even beginners start collecting different kind of data without a hassle.
You can also stream the collected data to the IOTA Tangle using MAM for e.g.

Tutorials:
Node Red library
Install Node Red library on Raspberry Pi: https://nodered.org/docs/hardware/raspberrypi
Node Red using MAM: https://flows.nodered.org/node/node-red-contrib-iota-mam