Quantity   Component name
1 × ESP8266 2017 hardware hacker bread and butter
1 × 3v3 voltage regulator Turns USB-level power into ESP-level power
1 × USB connector It's everywhere, I guess
1 × PCB Possibly Purple
1 × Other good stuff Decoupling caps, resistors, possibly a blue LED?
1 × Spiffy 3D printed case Limited edition