Custom PCB Design — ESP8266 / 32 RFID Attendance System

Designed and developed a compact, custom PCB for a wireless RFID-based attendance tracking system intended for school deployment. The board integrates an ESP8266 Wi-Fi microcontroller with an MFRC522 RFID reader, multi-color status LEDs, audio feedback, and battery monitoring in a single unified design. Key Deliverables:

Full schematic deEDA tool (KiCad/EasyEDA) Custom PCB layout with component placement and routing BOM (Bill of Materials) preparation Design review and validation

Technical Highlights:

ESP8266/32 Wi-Fi SoC for wireless data transmission via HTTS MFRC522 RFID reader via SPI interface for card/tag detection RGB status indicator LEDs (Green, Blue, Red) with current limiting Active buzzer for audio feedback on scan events Battery voltage monitoring via ADC voltage divider Onboard power management with EN control Compact 2-layer PCB design optimised for enclosure mounting Budget: INR 12500–37500 Skills: Electronics, PCB Layout, AutoCAD, PCB Design and Layout