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International Buying Links :
ESP8266-
https://www.banggood.in/Geekcreit-NodeMcu-Lua-WIFI-Internet-Things-Development-Board-Based-ESP8266-CP2102-Wireless-Module-p-1097112.html?p=LU070313923481201709&custlinkid=1475231
https://www.banggood.in/Geekcreit-NodeMcu-Lua-ESP8266-ESP-12F-WIFI-Development-Board-p-985891.html?p=LU070313923481201709&custlinkid=1475232
https://www.banggood.in/New-V2-ESP8266-Development-Board-WiFi-Driver-Expansion-Board-For-IOT-NodeMcu-ESP12E-Lua-L293D-p-1411134.html?p=LU070313923481201709&custlinkid=1475234
5V Relay-
https://www.banggood.in/5Pcs-QIANJI-JQC-3F(T73)-5VDC-12VDC-T73-5V-12V-10A-5Pin-Relay-Module-p-1557265.html?p=LU070313923481201709&custlinkid=1475237
https://www.banggood.in/5Pcs-SRS-05V-12VDC-SL-5V-12V-24V-DC-3A-6Pin-Relay-Module-p-1556615.html?p=LU070313923481201709&custlinkid=1475238
https://www.banggood.in/5Pcs-SRU-05V-12V-24VDC-SL-C-5V-12V-24V-DC-10A-5Pin-Relay-Module-p-1555775.html?p=LU070313923481201709&custlinkid=1475239
Buy transistors:
https://www.banggood.in/50pcs-BC547+BC557-Each-25pcs-BC547B-BC557B-NPN-PNP-Transistor-TO-92-Power-Triode-Transistor-Kit-Bag-p-1610379.html?p=LU070313923481201709&custlinkid=1475284
https://www.banggood.in/Geekcreit-600Pcs-TO-92-NPN-PNP-Bipolar-Transistor-15-Value-Assortment-Kit-p-1098096.html?p=LU070313923481201709&custlinkid=1475285
https://www.banggood.in/200pcs-10-Values-Transistors-Pack-Transistor-Assortment-Kit-With-Storage-Box-p-1070201.html?p=LU070313923481201709&custlinkid=1475287
Diode :
https://www.banggood.in/100pcs-IN4007-1N4007-DIP-Rectifier-Diode-Component-Kit-For-DIY-Projects-p-1177909.html?p=LU070313923481201709&custlinkid=1475290
LEDs :
https://www.banggood.in/Geekcreit-375pcs-3MM-5MM-LED-Light-Emitting-Diode-Beads-Resistance-Lights-Kits-Bulb-Lamp-p-1027601.html?p=LU070313923481201709&custlinkid=1475292
https://www.banggood.in/100pcs-20mA-F5-5MM-5-Colors-Ultra-Bright-LED-Diode-For-DIY-Projects-p-966103.html?p=LU070313923481201709&custlinkid=1475293
Resistor :
https://www.banggood.in/Wholesale-Geekcreit-600pcs-30-Kinds-Value-1-pencent-1-or-4W-Metal-Film-Resistor-Assorted-Kit-20pcs-Each-Value-p-53320.html?p=LU070313923481201709&custlinkid=1475296
https://www.banggood.in/560-Pcs-1-ohm-to-10M-ohm-1-or-4W-5-pencent-Metal-Film-Resistor-56-Value-Assorted-Kit-p-1072159.html?p=LU070313923481201709&custlinkid=1475297
Pin Headers :
https://www.banggood.in/10pcs-40Pin-2_54mm-Female-Header-Jumper-Connectors-Socket-For-DIY-p-945516.html?p=LU070313923481201709&custlinkid=1475298
https://www.banggood.in/120pcs-4Pin-40Pin-2_54mm-Pitch-Straight-Single-Row-PCB-Board-Female-Pin-Header-Socket-p-1582633.html?p=LU070313923481201709&custlinkid=1475299
PCB Multipurpose :
https://www.banggood.in/Geekcreit-40pcs-FR-4-2_54mm-Double-Side-Prototype-PCB-Printed-Circuit-Board-p-995732.html?p=LU070313923481201709&custlinkid=1475303
https://www.banggood.in/10pcs-Universal-PCB-Board-5x7cm-2_54mm-Hole-Pitch-DIY-Prototype-Paper-Printed-Circuit-Board-Panel-Single-Sided-Board-p-1598487.html?p=LU070313923481201709&custlinkid=1475304
Screw Pin terminal :
https://www.banggood.in/20pcs-2-Pin-Plug-In-Screw-Terminal-Block-Connector-5_08mm-Pitch-p-993197.html?p=LU070313923481201709&custlinkid=1475307
https://www.banggood.in/60pcs-2-Pin-Plug-In-Screw-Terminal-Block-Connector-5_08mm-Pitch-p-1185450.html?p=LU070313923481201709&custlinkid=1475308
Relay Module :
https://www.banggood.in/3Pcs-5V-Relay-5-12V-TTL-Signal-1-Channel-Module-High-Level-Expansion-Board-p-1178211.html?p=LU070313923481201709&custlinkid=1475240
https://www.banggood.in/3pcs-5V-Low-Level-Trigger-One-1-Channel-Relay-Module-Interface-Board-Shield-DC-AC-220V-p-1341427.html?p=LU070313923481201709&custlinkid=1475241
https://www.banggood.in/5pcs-5V-Low-Level-Trigger-One-1-Channel-Relay-Module-Interface-Board-Shield-DC-AC-220V-PIC-AVR-DSP-ARM-MCU-p-1341429.html?p=LU070313923481201709&custlinkid=1475242
INDIA Buying links :
ESP8266 :
https://amzn.to/2NZ8YQV
https://amzn.to/3bCynb9
https://amzn.to/37JkSVU
Transistors :
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Diode :
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LEDs :
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Resistor :
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Pin Headers :
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PCB Multipurpose :
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Screw Pin terminal :
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5V Relay :
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Relay module :
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