Quantity   Component name
1 × FireBeetle ESP8266 https://www.dfrobot.com/product-1634.html?search=esp8266
1 × PCBWAY Custom PCB https://www.pcbway.com/
1 × REYAX RYB080I https://ebay.to/2X0ZrIz
1 × REYAX RYB080I_lite https://ebay.to/30EG1vw