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-1 ESP8266-ESP01 WiFi Download Module. Uses CP2104 USB to Serial Port Chip, with ESP8266 Automatic Download Circuit. 128.87 ZAR inc for 1 Each 14 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Overview This downloader uses CP2104 USB serial port chip and adds ESP8266 automatic download circuit. It is very convenient for users to download ESP-01/01S program, upgrade firmware, serial debugging and so on. It supports download software such as Arduino IDE, ESP8266 Flasher and Lexin FLASH_DOWNLOAD_TOOLS by one button. It does not need to be downloaded. There is no need to press any buttons. The WiFi module will automatically enter the download mode.