yourpi:~$ wget https://project-downloads.drogon.net/wiringpi-latest.deb

NOTE: domain say “dr-OH-gon”, it does NOT say “dragon”

yourpi:~$ sudo dpkg -i wiringpi-latest.deb

“gpio readall” will open up a table showing the physical pin layout of your pi. It will also tell you whether a pin is set to input or output, and the voltage currently associated with the pin.

“gpio mode (pin # ex: gpio.0) out” will change the mode from input to output.

“gpio write (pin #) 1” will change the voltage of a pin from 0 to 1.

GPIO.0 is actually GPIO17 on your T-cobbler

Brief Definition:

A light-emitting diode (LED) is a semiconductor device that emits light when current flows through it./

cd src/fall2023/c4eng/