ESP8266 Serial WIFI Module Egypt

WiFi Serial Transceiver Module w/ ESP8266

Product Description

This is a wifi solution based on IC ESP8266 from Espressif, very price competitive wifi module, and also great function. Bring your project to the internet of things easily!

Features:

Very competitive price
AP, STA, AP+STA modes available.
Very simple AT commands, easy to use.
internal LWIP interface.
Only four pins interface, VCC-3V3, GND, TXD and RXD.
Current firmware V091 for all stock, new reserved reset and CH_PD (for updating) pins available, you can refresh the firmware now.
All using new ESP8266ex new chip, old chip is not available anymore.
visit this wiki for more info about specs and usages

Module Pin Description

Normal mode: Normal boot from flash, normal working mode
Flash mode: Firmware flash mode

Pin	Working Mode	Flash Mode	Description
VCC, GND*			power supply, better use a standalone, and share ground with uart port
TXD, RXD**			uart interface
RST			Restart on low TTL
CH_PD	High TTL	High TTL	Chip select, constant High TTL for both mode
GPIO0	High TTL(optionally)	Low TTL	Switch Wroking/Flash Mode
GPIO 15	Low TTL	Low TTL	Constant Low TTL for both mode , N/A for ESP-01
GPIO 2	High TTL	High TTL	Constant High TTL for both mode, maybe not necessary
Red LEDs			constants on to show the power status
Blue LEDs			blink when data come through