Sometimes it’s difficult to keep track of all the useful Raspberry Pi commands you use, so I created a list of some of the most common and important ones that will make using Linux on the Raspberry Pi a lot easier.
There are two user “modes” you can work with in Linux. One is a user mode with basic access privileges, and the other is a mode with administrator access privileges (AKA super user, or root). Some tasks cannot be performed with basic privileges and you will need to enter into root mode to perform them. You will frequently see the prefix sudo before commands, which means that you are telling the computer to operate the command with super user privileges. Another way is to access the root command prompt, which operates all commands with super user privileges. Access root mode by entering sudo su at the command prompt. After entering sudo su, you will see the root@raspberrypi:/home/pi# command prompt, and all subsequent commands can be entered without the sudo prefix and still have super user privileges.
Eink, E-paper, Think Ink – Collin shares six segments pondering the unusual low-power display technology that somehow still seems a bit sci-fi – http://adafruit.com/thinkink
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.