ESP8266 Code Burner Firmware Downloader+ 5pcs ESP-12E ESP12E Wireless Transparent Transmission/Industrial Grade WiFi Module

ESP8266 Code Burner Introduction: This board is suitable for firmware burning test of modules such as ESP-12S/12F/12E/07S/07. All IO ports have been exported and can be used as a minimum system development board or a small batch burning fixture. The board supports firmware one-click download function and adds programming Mode indicator (blue light) and serial communication indicator (green light). Note: (1) The module supply voltage is 3.3V DC and the current is 500mA or more; (2) Wi-Fi module IO maximum output current is 12mA; (2) Wi-Fi module NRST pin is active low; EN enable pin is active high; (4) The Wi-Fi module enters the upgrade mode: GPIO0 is at a low level, then the module is reset and powered on; the Wi-Fi module enters the normal working mode: GPIO0 is at a high level, and the module is reset and powered. (5) The RXD of the Wi-Fi module is connected to the TXD of the external MCU, and the TXD of the Wi-Fi module is connected to the RXD of the external MCU; Package Included: ESP-12E wifi module: 5pcs ESP8266 code burner: 1pcs