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CH340C ESP8266 ESP-01 Prog WIFI Downloader
The DOWNLOAD device uses CH340CUSB transfer to serial port chip, and adds an automatic DOWNLOAD circuit for ESP8266, which is very convenient for users to DOWNLOAD programs, upgrade firmware, and serial port debugging, etc. It supports Arduino IDE, ESP8266 Flasher, And Joyin Flash-Download-Tools, etc. It doesn't need to connect wires or press any buttons. The WiFi module will automatically enter the download mode.