Quantity   Component name
1 × ESP-01 ESP8266 module
1 × 5V power supply 230V/120V to 5V (switching) power supply
1 × LiPo charging circuit Any 5V based LiPo charger will do, e.g. MCP7383x
1 × LiPo Battery Single cell 3.7V, 250mAh will suffice
1 × 3.3V DC/DC converter Stabilizing battery voltage to 3.3V, e.g. SY8009A
3 × 2N2222 NPN Transistor
1 × BSS84 P-Channel MOSFET
7 × Resistors 2k2, 3k3, 4k7, 10k, 10k, 10k, 15k