Quantity   Component name
1 × Oshpark Project Link - (For Testers) https://oshpark.com/shared_projects/PJIoNioG
1 × 5v 2 Relay Opto Isolated Module $1.35 http://www.ebay.com/itm/172119967044
1 × AMS1117-3.3 V_REG_317 SOT223 Voltage regulator
1 × BS170 N-Channel Mosfet (D,G,S) NPN1
1 × 2N2222A TO92 NPN Transistor (C,B,E) NPN2
2 × SWITCH-2SMD TAC-SWITCH FLASH, RESET
3 × 100k 0805 SMD Resistor R1, R5, R6
2 × 1k 0805 SMD Resistor R3, R4
1 × 47uf 1206 SMD Capacitor C2
1 × 1x2 pin header 5v ConnectorJ1
1 × 2x4 pin header ESP Header J3
1 × 1x4 pin header relays J2