Raspian Setup
PINOUT 40 pin gpio connections
Blinking LED using Python3 rpi GPIO sample code
Blinking LED using Javascript rpi GPIO sample website
Sensors
Sense Hat
The Sense HAT features an 8×8 RGB LED matrix, a mini joystick, Gyroscope, Accelerometer, Magnetometer, Temperature, Humidity, and Barometric pressure. It also has a library that is maintained by the Raspberry Pi Foundation on GitHub at github.com/RPi-Distro/python-sense-hat
Or the .Net Core version can be used to create an Internet of Things device.
Pi-16ADC
16 bit, 16 channel analog to digital converter (ADC) board for attaching analog sensors on the Raspberry Pi.
alchemy-power.com