ESP32R — Espressif
Dual-core Xtensa LX6 MCU, WiFi+BLE, 240MHz, 520KB SRAM, QFN48, tape & reel, 2500 pcs

Category: MCU

Pricing
  LCSC         $2.29
  Mouser       $2.66
  DigiKey      $2.95
  Farnell      $3.23

Manufacturer: https://www.espressif.com