ESP32 — Espressif
Dual-core Xtensa LX6 MCU, WiFi+BLE, 240MHz, 520KB SRAM, QFN48

Category: MCU

Pricing
  LCSC         $2.14
  Mouser       $2.65
  DigiKey      $2.98
  Farnell      $3.10

Manufacturer: https://www.espressif.com