[RPI3] Connect to HW world

To use Raspberry Pi to control other hardware rather to work as a microcomputer, one need to connect it through GPIO port.

After connect addition HW to GPIO port, it’s a need to create a software to control it.

in order to control the PIN on GPIO port, it required a DRIVER

There are 2 main driver can be found (free + easy to use). There should have more DRIVER but it will be out of SCOPE now.

• RPi.GPIO – Python
  • need to be superuser before able to activate this library
  • in older version, every time to run python with this library, it need to input the password
  • in RPi3, jessie, there is such a need. so, it seems easier to use
• WiringPi

for RPi3, it seems that RPi.GPIO has been install out of the box.

in order to check it present and version

• open Python IDLE
• import to check its presence
• if presence, run command to get its version
• 
• if not presence, you can try to download it from
• 

Reference:

• Sparkfun