Hello Sir,
its an easy task for me.
I have 4 years experience in PCB designing in EAGLE( single multilayer and flex)
Almost all projects I made are Arduino and ESP12 based. following are some example
1. ESP12E wifi + relay board + humidity&temp sensor Smart module
2. ESP12S wifi + relay board home automation board.
3. ESP12E wifi + RC522 RFID + BUCk converter module.
4. atmega328au + hm11+ relays car actuator module.
5. atmega328au + nrf24l01 + relays smart switch module.
6. atmega328au + mpr121 capacitive touch smart remote.
7. amega328au + LCD display + hc06(later hm10) + amplifier + strain gauge water mapping module.
8. Arduino Uno clone.
I will provide you all necessary files ( gerber, smd-coordinate, BOM, Eagle(.brd& .sch).
please, see my portfolio for more sample of my work.
or initiate chat I will share some 3D simulation of my work.
thanks.