Catalog > Internet of Things (IOT) Related Products > More Platforms ESP8266-ESP01 WiFi Download Module ESP8266-ESP01 WiFi Download Module HKD ESP-01 USB PROGRAM ADAPTER-2 ESP8266-ESP01 WIFI DOWNLOAD MODULE. USES CH340C USB TO SERIAL PORT CHIP. SUPPORTS ARDUINO IDE, ESP8266 FLASHER AND ESPRESSIF FLASH-DOWNLOAD TOOLS Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE