Quantity   Component name
1 × ESP8266 12E
1 × HI-LINK 100-220Vac to 3.3V power supply
1 × Electrolitic capacitor 100mF 6.3V
1 × Capacitor 100nF
1 × Resistor 10K
1 × LED Fiber Optics / Emitters
1 × Case of "dead" smartphone power supply