Because of IoT (Internet of Thing), everything should be connected to Internet, a crucial element is WiFi that provides wireless connection to Internet. We have been carrying ESP module and many have used it. However it is not user friendly enough for beginner. The module is 3.3V powered and the pins are not properly broken out. Intergrating it to your microcontroller e.g.: Arduino will require some skill and electronics interface.

With this ESP WiFi shield, it will be plug and use for Arduino user.

The WROOM-02 comes pre-flashed with an AT-command firmware, so it can be controlled by any UART/Serial, but it also breaks out and provides command access to all of the ESP8266’s I/O. The shield itself does not limit to AT command, we have breakout most of the IO and you can program the WROOM-02 module directly. Whether you want to add AT commands of your own, or flash custom firmware on the ESP8266, this feature may come in handy especially with it utilizing the UART pin selectors.

Besides, we have also provide the option to use microSD card for data storage, if you are doing data logging, it will be a time saver!

This shield comes populated with all components as shown in the images and schematic.