ESP8266 ESP-01 Remote Serial Port WIFI Transceiver Wireless Module

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The ESP-01 ESP8266 Serial WIFI Wireless Transceiver Module is a self-contained SOC with an integrated TCP/IP protocol stack that can give any microcontroller access to your WiFi network. The ESP8266 is capable of either hosting an application or offloading all Wi-Fi networking functions from another application processor. Each ESP8266 module comes pre-programmed with an AT command set firmware, meaning, you can simply hook this up to your Arduino device and get about as much WiFi-ability as a WiFi Shield offers (and that’s just out of the box)! The ESP8266 module is an extremely cost-effective board with a huge, and ever-growing, community.

This module has a powerful enough onboard processing and storage capability that allows it to be integrated with the sensors and other application-specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry, including the front-end module, which is designed to occupy a minimal PCB area. The ESP8266 supports APSD for VoIP applications and Bluetooth co-existing interfaces, it contains a self-calibrated RF allowing it to work under all operating conditions and requires no external RF parts.

ESP8266 ESP-01 Remote Serial Port WIFI Transceiver can work effortlessly with platforms like Arduino. It has powerful onboard processing and storage capabilities which allow the module to be integrated with sensors and other application-specific devices through its GPIOs.

  1. The interposer board has an integrated 1000 uF solid-state capacitor, and it provides a guaranteed stable power supply to the WIFI module.
  2. The 3225 SMD crystal oscillator improves stability for serial interfacing.
  3. It can be used as a serial port WIFI
  4. It has a high-speed CPU frequency


  • It has a serial UART Interface
  • It runs LWIP
  • It has built-in TCP/IP
  • The AT command is perfect, efficient, and concise
  • It has an onboard PCB Antenna


The ESP8266 Module is not capable of 5-3 V logic shifting and will require an external Logic Level Converter. Please do not power it directly from your 5 V dev board.


Device ESP8266 ESP-01
Flash Memory 1 MB
Wake up and transmit packets < 2 ms
Standby power consumption 1.0 mW
Wireless Standards 802.11 b/g/n
Frequency Range 2.4 GHz-2.5 GHz (2400 M-2483.5 M)
Data Interface UART / HSPI / I2C / I2S / IR Remote Control GPIO / PWM
Operating Voltage 3.0-3.6 V
Working Current 80 mA
Operating Temperature (°C) -40 °C -125 °C

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