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WF121-E-V2

Name: WF121-E-V2
Rating: 4.7 (12 reviews)

RF TXRX MODULE WIFI U.FL SMD

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Mfr。パート #WF121-E-V2
パッケージ
データシート WF121-E-V2 DataSheet
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仕様

Part Status	Obsolete
RF Family/Standard	WiFi
Protocol	802.11b/g/n
Frequency	2.4GHz
Data Rate	72.2Mbps
Power - Output	17dBm
Sensitivity	-97dBm
Serial Interfaces	I2C, Ethernet, SPI, UART, USB
Antenna Type	Antenna Not Included, U.FL
Memory Size	512kB Flash, 128kB SRAM
Voltage - Supply	2.3V ~ 3.6V
Current - Receiving	127mA
Current - Transmitting	143mA
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 85°C
Package / Case	Module
Base Product Number	WF121
DigiKey Programmable	Not Verified

概要

Description

The WF121-E-V2 is a compact, low-power Wi-Fi module designed for IoT applications, offering seamless connectivity for devices. It features a built-in microcontroller with a full TCP/IP stack, making it suitable for various smart applications. Operating on the 2.4 GHz frequency, it supports 802.11 b/g/n standards, ensuring reliable wireless communication.
The module is easy to integrate, with UART and SPI interfaces for communication, allowing developers to connect it to microcontrollers or other systems effortlessly. Its low power consumption makes it ideal for battery-operated devices. The WF121-E-V2 also includes advanced security features like WPA/WPA2 for secure connections.
With its compact design and versatile capabilities, the WF121-E-V2 is perfect for applications in home automation, wearable technology, and industrial monitoring, enabling developers to create robust, connected solutions in a range of environments.

Features

The WF121-E-V2 is a versatile Wi-Fi module designed for IoT applications, featuring:
1. Wi-Fi Connectivity: Supports 802.11b/g/n standards, enabling seamless internet access.
2. Low Power Consumption: Optimized for battery-operated devices, offering low power modes.
3. Compact Size: Small form factor, ideal for space-constrained applications.
4. Integrated Antenna: Built-in antenna simplifies design and reduces external components.
5. Multiple Interfaces: Supports UART, SPI, and I2C for easy integration with various microcontrollers.
6. Firmware Support: Compatible with various firmware options, facilitating customization and development.
7. Security Features: Implements WPA/WPA2 encryption for secure connections.
8. Temperature Range: Suitable for use in diverse environments with an extended operating temperature range.
This module is particularly suited for smart home devices, wearables, and industrial applications, providing reliable wireless communication and ease of integration.

Package

The WF121-E-V2 is packaged in a compact module form factor designed for easy integration into various applications. It typically features a PCB layout suitable for surface mount or through-hole installation, making it versatile for embedded projects requiring Wi-Fi connectivity.

Pinout

The WF121-E-V2 is a Wi-Fi module with a total of 32 pins. Its primary functions include enabling Wi-Fi connectivity, serial communication, and interfacing with various microcontroller platforms. Key pin functions include:
1. Power Supply: VCC (power input) and GND (ground).
2. Communication Interfaces: UART (TX, RX) for serial communication, and SPI options.
3. GPIO Pins: General-purpose I/O pins for various control functions.
4. Analog Input: ADC pins for reading analog signals.
5. Reset and Boot Options: Reset pin and a pin for selecting boot modes (e.g., normal or firmware update).
6. LED Indicators: Pins for status LEDs to indicate power and connectivity status.
The WF121-E-V2 is designed for embedded applications, providing a compact solution for adding Wi-Fi capabilities to devices.

Manufacturer

The WF121-E-V2 is manufactured by Waveshare, a company that specializes in providing various electronic components and development boards. Waveshare focuses on products for hobbyists, educators, and professionals in the fields of electronics and embedded systems. Their offerings include single-board computers, displays, sensors, and communication modules, catering to a wide range of applications from DIY projects to industrial solutions. The WF121-E-V2 itself is a Wi-Fi module designed for wireless connectivity, typically used in combination with microcontrollers and embedded systems.

Application

The WF121-E-V2 is a versatile Wi-Fi module primarily used in IoT applications, including smart home devices, industrial automation, wearable technology, and remote monitoring systems. Its compact design makes it suitable for embedded systems in consumer electronics, medical devices, and automotive applications, enabling wireless connectivity and data transmission in various environments.

Equivalent

The WF121-E-V2 chip is a Wi-Fi module that can be compared to products like Espressif's ESP8266 and ESP32, Microchip's MCP2221, and Texas Instruments' CC3200. These alternatives also provide Wi-Fi connectivity and are commonly used in IoT applications. Ensure compatibility in terms of features, power requirements, and programming environments when selecting an equivalent.