---
title: "WiFi-Adapter"
url: "https://maker.wiznet.io/WIZnet/projects/wifi-adapter/"
markdown_url: "https://maker.wiznet.io/WIZnet/projects/wifi-adapter/md"
type: "UCC: User Created Content"
author: "WIZnet"
author_url: "https://maker.wiznet.io/WIZnet/"
original_url: "http://tern.com/"
published: "2023-02-21"
language: "en"
likes: 2
views: 166
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# WiFi-Adapter

> WiFi-Adapter with WizFi210

Original source: http://tern.com/

## Article

**INTRODUCTION**

The WiFi-Adaptor provides a simple solution to add Wi-Fi capabilities to TERN controllers. The WiFi-Adaptor includes an 802.11b compliant, fully certified wireless module (WizFi210, WizNet). It brings WiFi connectivity to a standard serial port (TTL or RS232). The module has all hardware and firmware to handle the Wi-Fi network overhead. No Wi-Fi specific firmware programming is required, such as TCP-IP. Users can use simple AT commands to access the Wi-Fi network for configuration and data communication. In a standard 802.11b wireless network, TERN controllers with the WiFi-Adaptor can be configured as a static IP address TCP Server or as a TCP Client. Clients can communicate to the server over a standard commercial Wi-Fi router. The WiFi-Adaptor supports a Limited Access Point (AP) feature to host a direct connection with a wireless device like an iPad, iPhone, or Android-phone. TERN offers sample firmware to allow users to operate a TERN controller with an iPhone.

**FEATURES**

- Provide WiFi (802.11b) ability to a TERN controller

- Convert WiFi to RS232 or TTL UART

- Operate a TERN controller with iPad or iPhone

- 2.03 x 1.21 inches, 135 mA at 5V DC power

- Working distance of over 300 meters with a cable antenna installed

There are two versions of the WiFi-Adaptor: WiFi-TTL and WiFi-232.

The WiFi-TTL accepts TTL level UART TxD and RxD signals.

The WiFi-232 is ready to connect to a RS232 port. The default serial baud rate is 115,200.

---

Source: https://maker.wiznet.io/WIZnet/projects/wifi-adapter/