---
title: "SainSmart WiFi Shield For Arduino Mega Uno Duemilanove(802.11 b/g/n) UART TTL Communicate"
url: "https://maker.wiznet.io/WIZnet/resellers/sainsmart-wifi-shield-for-arduino-mega-uno-duemilanove-802-11-b-g-n-uart-ttl-communicate/"
markdown_url: "https://maker.wiznet.io/WIZnet/resellers/sainsmart-wifi-shield-for-arduino-mega-uno-duemilanove-802-11-b-g-n-uart-ttl-communicate/md"
type: "VAR: Value-Added Reseller Products"
author: "WIZnet"
original_url: "https://www.sainsmart.com/products/sainsmart-wifi-shield-802-11b-g-for-arduino-mega-uno-duemilanove"
published: "2023-02-21"
language: "en"
likes: 3
views: 507
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# SainSmart WiFi Shield For Arduino Mega Uno Duemilanove(802.11 b/g/n) UART TTL Communicate

> SainSmart WiFi Shield For Arduino Mega Uno Duemilanove(802.11 b/g/n) UART TTL Communicate

Original source: https://www.sainsmart.com/products/sainsmart-wifi-shield-802-11b-g-for-arduino-mega-uno-duemilanove

## Article

**FEATURES**

- Bring WiFi connectivity via Serial Host Interface, compatiable with Arduino

- Quick Booting Time : under 20msec

- Ultra Low Power through Dynamic Power Management (34µA at the Standby mode)

- Operates with standard 802.11b/g/n access point at speed up to 11Mbps (802.11b)

- Security Protocol : WEP, WPA/WPA2-PSK, Enterprise, EAP-FAST, EAP-TLS, EAP-TTLS, PEAP

- Operation Temperature : -40? ~ 85?

- Compact Size : 32 x 23.5 x 2.9 (mm)

- CE, FCC, KCC Certified

- Supports the module with chip antenna

- 802.11b/g/n

**TECHNICAL DETAILS**

| **Specifications** | **Description** |
| --- | --- |
| **Radio Protocol** | IEEE 802.11b/g/n Compatible |
| **Supported Data Rates** | 11, 5.5, 2, 1 Mbps (IEEE 802.11b) |
| **Modulation** | DSSS and CCK |
| **RF Operating Frequency** | 2.4 - 2.497 GHz |
| **Antenna Options** | Chip antenna and U.FL connector for external antenna |
| **Networking Protocols** | UDP, TCP/IP (IPv4), DHCP, ARP, DNS, HTTP/HTTPS Client and Server(**) |
| **Power Consumption(Typical)** | Standby = 34.0 μA Receive = 125.0 mA Transmit = 135.0 mA |
| **RF Output Power (Typical)** | 8dBm ± 1dBm |
| **Security Protocols** | WEP, WPA/WPA2?PSK, Enterprise (EAP-FAST, EAP-TLS, EAP-TTLS, PEAP)(**) |
| **I/O Interface** | UART, SPI(**), I2C(*), WAKE, ALARM, GPIOs |
| **Power Source** | 3.3V |
| **Dimensions** | 32 x 23.5 x 3 mm |

---

Source: https://maker.wiznet.io/WIZnet/resellers/sainsmart-wifi-shield-for-arduino-mega-uno-duemilanove-802-11-b-g-n-uart-ttl-communicate/