ID Name Designator Quantity "1" "ESP32 DEVKIT V1 DOIT" "U8" "1" "2" "2.2uF 250V AC" "C1" "1" "3" "3.3uF 250V AC" "C2" "1" "4" "Diode 1N4007" "D1,D2,D3,D4,D5,D6,D7" "7" "5" "5mm LED" "10" "6" "BC547 NPN Transistor" "Q1,Q2,Q3,Q4,Q5,Q6,Q7" "7" "7" "510-ohm 1/4w" "R1,R2,R3,R4,R5,R6,R7" "7" "8" "1k 1/4w" "R8,R9,R10,R11,R12,R13,R14,R15,R16,R17" "10" "9" "220k 1/4w" "R18,R19" "2" "10" 2.2-ohm 1/2w "R20,R21" "2" "11" "5V SPDT Relay" "RLY1,RLY2,RLY3,RLY4,RLY5,RLY6,RLY7" "7" "12" "SWITCH SPDT SLIDER" "SW1" "1" "13" "Optocoupler PC-817C" "U1,U2,U3,U4,U5,U6,U7" "7" "14" "HLK-5M05 or HLK-10M05" "U9" "1" "15" "Male & Female Berg Strips" "16" 3-PIN & 2-PIN Terminal Connector "5"