- ESP8266 is Wi-Fi is a system on chip (SoC) module developed by Espressif system.
- It is mostly used for the development of the Internet of Things (IoT) embedded applications.
- The ESP8266 is a low-cost Wi-Fi microchip with a full TCP/IP stack and microcontroller capability produced by Shanghai-based Chinese manufacturing company Espressif Systems.
- The ESP8266 is capable of either hosting an application or offloading all the Wi-Fi networking functions from another application processor.
PIN Configuration
- RX: Serial Receiver Pin
- Vcc: Power Pin (+3.3 V; can handle up to 3.6 V)
- GPIO 0: General-purpose I/O No. 0
- RST: Reset
- CH_PD: Chip power-down
- GPIO 2: General-purpose I/O No. 2
- TX: Serial Transmitter Pin
- GND: Ground
Applications of ESP8266 WI-FI Module
- Wireless Web Server
- Geolocation using ESP8266
- Pressure Sensors on Railway Tracks
- Air Pollution Meter
- Temperature logging system
