ESP8266 Serial WIFI Module Egypt Best price in Egypt
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ESP8266 Serial WIFI Module Egypt
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!
- 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|