eYFi-Mega based Spectrum Analyzer

Mentor(s) : Sourav, Prasad, eYRDC
Interns : Aravinda Harithsa, Marefat Abbas

Circuit Schematic

Components Used

1. eYFi Mega Development Board -

  • ATmega2560 and ESP32 based development board
  • Arduino Programming Language Compatible
  • Wi-Fi compatible
  • Over-The-Air Update
  • Bluetooth Low Energy
  • Compatible with FreeRTOS

2. 128x64 0.96 Inch OLED Display Module -

  • Resolution: 128 x 64
  • Visual Angle: >160°
  • Input Voltage: 3.3V ~ 6V
  • Compatible I/O Level: 3.3V, 5V
  • Mini Size: 2.7 x 2.8cm
  • Only Need 2 I/O Port Control
  • Full Compatible with Arduino

3. Electret Microphone Amplifier MAX4466 Adjustable GY-MAX4466 -

  • VCC Range : 2.4 to 5 VDC
  • DC bias : VCC/2 (In perfectly quiet)