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IOT UART wifi module


RTL8189ES Small Size SDIO WiFi Module WG223 (Discontinued)

WG223 is a high performance, low cost, small form factor and 802.11b/g/n compliant SDIO interface (SDIO 1.1 / 2.0 / 3.0 compatible) WiFi module specifically designed for implementing wireless LAN communication applications in embedded systems.

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Antenna Type PCB PIN
Chipset solution RTL8189ES
Dimension(L×W×H) 14.0mm*12.5mm*2.4mm

The WG223 WIFI module is a highly integrated SDIO interface (SDIO 1.1/ 2.0/ 3.0 compliant) 2.4G 802.11b/g/n 1T1R Wireless LAN (WLAN) network controller. It has a WLAN MAC, a 1T1R capable WLAN baseband, and WLAN RF in a single module. The WG223 provides a complete solution for a high throughput performance integrated wireless LAN device. The module requiring only an external 3.3V power supply. Below is the module top view.



◆ 802.11 b/g/n, up to 150 Mbps data rate.

◆ 1T1R WLAN for 2.4 GHz.

◆ SDIO 1.1/2.0/3.0 interface for WLAN.

◆ 802.11e QoS enhancement(WMM).

◆ 802.11i(WPA, PWA2).

◆Host and Peripheral Interface

◆ Complies with SDIO 1.1/ 2.0/ 3.0 for WLAN with clock rate up to 100MHz.

◆ GSPI interface for configurable endian for WLAN.

◆ GPIO (8 pins)

◆ One configurable LED pins.

Standards Supported

◆ IEEE 802.11b/g/n compatible WLAN.

◆ IEEE 802.11e QoS Enhancement (WMM).

◆ 802.11i (WPA, WPA2), Open, shared key, and pair-wise key authentication services

Hardware Features
Model WG223
Antenna Type PCB Pin
Chipset solution RTL8189ES
Voltage 3.3V+/-5%
Dimension(L×W×H) 14.0mm*12.5mm*2.4mm
Wireless Features
Wireless Standards IEEE 802.11b/g/n/
Frequency Range 2412GHz---2484MHz
Data Rates IEEE 802.11b : 1,2,5.5,11Mbps
IEEE 802.11g : 6,9,12,18,24,36,48,54Mbps
IEEE 802.11n : MCS0--MCS7 @ HT20 /2.4GHz band
MCS0--MCS7 @ HT40 /2.4GHz band
Receiver Sensitivity HT40 MCS7 : -65dBm@10% PER(MCS7) /2.4GHz band
HT20 MCS7 : -66dBm@10% PER(MCS7) /2.4GHz band
54M: -71dBm@10% PER  11M: -83dBm@ 8% PER
Modulation Technique DSSS (DBPSK, DQPSK, CCK)
Wireless Security WPA/WPA2, WEP, TKIP and AES, WPS2.0, WAPI
Transmit Power IEEE 802.11n: 14±2dBm @HT20/40 MCS7
IEEE 802.11g: 16±2dBm @54Mbps
IEEE 802.11b: 18±2dBm @11Mbps
OS supported Windows XP/Win7/Linux/Android
Certification RoHS, FCC, CE compliance
Environment Operating Temperature: -20℃~70℃
Storage Temperature: -55℃~125℃
Operating Humidity: 10%~90% non-condensing
Storage Humidity: 5%~90% non-condensing


◆ Smart Home

◆ Wi-Fi gateway

◆ Consumer electronical devices

1. who are we?
We are based in Guangdong, China, start from 2006,sell to North America(30.00%),Eastern Europe(15.00%),Western Europe(15.00%),Northern Europe(14.00%),Oceania(5.00%),South Asia(5.00%),Domestic Market(5.00%),South America(4.00%),Southeast Asia(3.00%),Africa(00.00%),Mid East(00.00%),Central America(00.00%),Southern Europe(00.00%).
2. how can we guarantee quality?
Always a pre-production sample before mass production; Always final Inspection before shipment;