Quantity   Component name
3 × 1uF capacitor, SMD 1206 C1 C3, C4
1 × 10 uF capacitor, SMD 1206 C2
1 × PCB Wire-to-Board Terminal block, Through-hole P1
1 × Battery connector P2
1 × 3 AA Battery holder Connection to P2
1 × Flashing connector P3
1 × 22 KΩ resistor, ± 1%, 200V R1
1 × 51 KΩ resistor, ± 1%, 200V, 0.25W R2
5 × 12 KΩ resistor, 1%, 200V, 0.25W R3, R4, R5, R6, R7
1 × Buzzer Electro mechanical 5V DC SP1
1 × Inverter, Schmitt Trigger, 2V to 5.5V, SOT-23-5 U1
1 × ESP8266 SMT module, ESP-12F U2
1 × CMOS process low dropout linear voltage regulator, SOT-23