ESP8266 WiFi Module for Raspberry Pi Pico - Waveshare 20182

A module in the form of an overlay to Raspberry Pi Pico Waveshare 20182 overlay module which extends its functionality with WiFi communication. Produced by Waveshare module, it is equipped with ESP8266 chip, which allows WiFi communication with support for TCP / UDP protocol. On the board there are also two buttons and LED indicating operation status.

• Standard Raspberry Pi Pico pins for plugging the module into the board.
• Communication via UART interface, controlled by AT commands.
• Supports three WiFi modes: STA, AP and STA+AP, built-in LWIP protocol and TCP / UDP communication.
• Based on ESP8266 module, four-layer process, improved impedance matching, stronger signal and more stable connection.
• 2 user buttons, convenient for Raspberry Pi Pico to update AT software.
• Programming resources and instructions for Raspberry Pi Pico in C/C++ and MicroPython have been prepared.

1. ESP8266 WiFi module
2. ESP8266 module reset button
3. ESP8266 BOOT button - connects to the ESP8266 GPIO0 pin, press to enter download mode during reset
4. 3.3 V linear regulator SPX3819M5

Description of components on the board.

• Chip: ESP8266
• Communication interface: UART
• UART baud rate: 115200 bps
• WiFi standard: IEE 802.11 b/g/n
• Frequency range: 2400 MHz to 2483.5 MHz
• WiFi operating mode: WiFi STA, WiFi AP, WiFi STA+AP
• Antenna: PCB
• Operating voltage: 3,3 V
• Operating temperature: from -40°C to 85°C
• Dimensions: 58 x 25 mm

• Manufacturer's website: Waveshare 20182
• User guide