ESP 8266 Expansion Board Extension gpio Wifi shield

Adopt standard pin interface spacing to achieve full compatibility with Uno, Mega, etc. (except for standard sizes such as Nano, Mini)

Using an advanced 3.3V power chip (the same as the official CC3000 expansion board's power chip) makes the 3.3V provided in the development board more accurate, making the ESP8266 work as normally as the official CC3000 chip, without gaps.

Introduce a WiFi module power supply/maintenance interface for developers to expand power supply and maintenance.

The onboard ESP 8266-12 industrial grade stable serial port WiFi module uses an enhanced PCB antenna for better signal performance.

The operation mode (such as operation mode and upgrade mode) of the ESP8266-12 industrial grade stable WiFi module can be quickly switched through the Dip switch, the serial port chip can be integrated, and the firmware can be quickly rewritten.

Built-in 5V to 3.3V TTL level converter prevents high-voltage TTL levels from causing damage to WiFi modules. (Not available for general modules)

The onboard ESP 8266-12 industrial grade stable WiFi module has a metal shield and strong anti-interference performance.

All interfaces of the onboard ESP 8266-12 industrial grade stable WiFi module are pulled out with standard spacing, facilitating in-depth development by developers.

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