ESP-32D-I — Ai-Thinker
ESP32 WiFi+BLE module, 4MB flash, PCB antenna, industrial range -40..+85C

Category: Module

Pricing
  LCSC         $2.20
  Mouser       $2.54
  DigiKey      $2.64
  Farnell      $2.83

Manufacturer: https://www.ai-thinker.com