OSOYOO 2PCS ESP8266 WiFi Module, ESP-12S WiFi Serial Module Board, Wireless Transceiver Remote Port Network Development Board for Arduino
Tutorial Manual: https://osoyoo.com/2020/12/20/osoyoo-esp8266-wi-fi-module/
OSOYOO ESP8266 Wi-Fi Module is a high Cost Performance ratio Wi-Fi connection device designed for Arduino. It can make your Arduino devices connect to Wi-Fi Internet through Serial COM protocol in a convenient and cost effective way.
Highlight of OSOYOO ESP8266 Wi-Fi Module
Traditional ESP8266 chip must work in 3.3V voltage which might be damaged by Arduino 5V digital output. We designed a build-in voltage converter inside the module, so you can simply connect the Module to any Arduino digital or analog pins without voltage converting.
We also simplified the ESP8266 output pins from 8 pins to 6 pins. The most important four pins are E_RX, E_TX, GND, VCC:
E_RX must be connected to Arduino Software TX or Hardware TX (D1)
E_TX must be connected to Arduino Software RX or Hardware RX (D0)
GND must be connected to Arduino GND pin
VCC must be connected to Arduino 5V pin
RST and KEY pin are used for flashing the ESP8266 firmware. If you don’t want to change official ESP8266 firmware, please do not use these two pins.
Compatible to HC02 HC05 HC06 Bluetooth slot
Many Arduino Robot project will use HC02 , HC05, HC06 Bluetooth module to connect Arduino to Bluetooth devices through Serial pins. OSOYOO ESP8266 module has same pin layout as HC02,HC05,HC06 module. So if your device has slot for HC02, you can simply insert this WiFi module into your HC02 slot and make it has extra WiFi function.
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We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.