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UNO R3 ESP8266 Serial WiFi Shield Extend Board Module - Blue + Silver
10 support pwm / interrupt / serial / i2c scalable gpio compatible configuration£¬ call syntax! The firmware update can be customized by expansion board Without USB to TTL converter A key to enter the brush write mode£¬ without any wiring Standard pin interface to achieve full compatibility with the pitch Uno£¬ Mega and so on. (Unless the standard size£¬ such as Nano£¬ Mini) 3.3V power supply using advanced chip (with the official expansion board power chip CC3000 same)£¬ so 3.3V board provided more accurate£¬ so ESP8266 as official cc3000 chip work as normal£¬ there is no gap. It leads to a WiFi module power supply / service interface to facilitate developers to extend the power supply and maintenance. Onboard ESP8266-12 stable industrial grade serial WiFi module£¬ using an enhanced PCB antenna£¬ signal better. You can quickly switch DIP switch ESP8266-12 industrial grade Wi-Fi stable operation mode (such as operating mode and upgrade mode) module£¬ integrated serial chip£¬ quickly flashing the firmware. Built-in 5V to 3.3V TTL level converter to prevent high-pressure TTL level of the WiFi module damage. (General module can not oh) Onboard ESP8266-12 stable industrial grade WiFi module with a metal shield£¬ immunity to interference. Onboard ESP8266-12 standard pitch leads to a stable industrial grade WiFi module all interfaces£¬ enabling developers to easily develop deep. Site preparation ESP8266-12 provide industrial-grade stability WiFi module library£¬ can be controlled by a very simple instruction£¬ provide routine. Use stackable design£¬ it can continue to accumulate above the other modules£¬ easy to use. Onboard four LED displays the status of ESP8266£¬ namely PWR£¬ DFU£¬ AP£¬ STA£¬ operation mode at a glance