What board am i to use? I want to copy a sketch for project 1 but for what board? For example when using the esp32 – download the esp32 board, etc. . . . . Also, there is no depth to the  wiring diagram. Some of us are just learning and we need a lot of hand holding. Also the resistor – was it a 220 Ohm resistor or a 2200 ohm resister?  Thanks for your help