> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# WiFi Module - ESP8266 (4MB)

**Type:** Product page · **SKU:** WRL-17146 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/wifi-module-esp8266-4mb.html ([markdown](https://core-electronics.com.au/wifi-module-esp8266-4mb.html.md))

## Retired product

This product is retired and no longer available for purchase. Replaced by: CE09543.

**Replacement:** https://core-electronics.com.au/catalog/product/view/sku/CE09543

## How to buy

- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

The ESP8266 WiFi Module is a self contained SOC with integrated TCP/IP protocol stack that can give any microcontroller access to your WiFi network. The ESP8266 is capable of either hosting an application or offloading all Wi-Fi networking functions from another application processor. Each ESP8266 module comes pre-programmed with an AT command set firmware, meaning, you can simply hook this up to your Arduino device and get about as much WiFi-ability as a WiFi Shield offers (and that's just out of the box)! The ESP8266 module is an extremely cost effective board with a huge, and ever growing, community.

This module has a powerful enough on-board processing and storage capability that allows it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry, including the front-end module, is designed to occupy minimal PCB area. The ESP8266 supports APSD for VoIP applications and Bluetooth co-existance interfaces, it contains a self-calibrated RF allowing it to work under all operating conditions, and requires no external RF parts.

There is an almost limitless fountain of information available for the ESP8266, all of which has been provided by amazing community support. In the *Documents* section below you will find many resources to aid you in using the ESP8266, even instructions on how to transforming this module into an IoT (Internet of Things) solution!

**Note:** The ESP8266 Module is not capable of 5-3V logic shifting and will require an external [Logic Level Converter](https://core-electronics.com.au/search/?q=12009). Please do not power it directly from your 5V dev board.

**Features**

- 802.11 b/g/n
- Wi-Fi Direct (P2P), soft-AP
- Integrated TCP/IP protocol stack
- Integrated TR switch, balun, LNA, power amplifier and matching network
- Integrated PLLs, regulators, DCXO and power management units
- +19.5dBm output power in 802.11b mode
- Power down leakage current of <10uA
- 4MB Flash Memory
- Integrated low power 32-bit CPU could be used as application processor
- SDIO 1.1 / 2.0, SPI, UART
- STBC, 1×1 MIMO, 2×1 MIMO
- A-MPDU & A-MSDU aggregation & 0.4ms guard interval
- Wake up and transmit packets in < 2ms
- Standby power consumption of < 1.0mW (DTIM3)

**Documents**

- [NURDspace Wiki](https://nurdspace.nl/ESP8266) (Schematic, Datasheet, & More!)
- Instructables Tutorial
- ESP8266 Community Forum
- [AT Command Set](https://core-electronics.com.au/attachments/localcontent/CommandDoc_20147ec4e30.pdf)
- [AT Command Set](https://room-15.github.io/blog/2015/03/26/esp8266-at-command-reference/) (Easier to read)
- [GitHub](https://github.com/esp8266/esp8266-wiki/wiki) (ESP8266)
- [GitHub](https://github.com/jcmvbkbc/gcc-xtensa) (GCC-Xtensa)
- [Graphical Datasheet](https://core-electronics.com.au/attachments/localcontent/ESP8266ModuleV1_40305de50f5.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/7/17146-wifi_module_-_esp8266__4mb_-01.jpg)