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WiFi Bluetooth Module


WiFi+Bluetooth 5.1 Combination Module WG238

The WG238 is a Bluetooth dual-mode 5.1 and Wi-Fi 802.11n module. The module integrates hardware and software resources needed to complete Wi-Fi and Bluetooth applications.

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WiFi Standard IEEE 802.11b/g/n
Bluetooth Standard  DM 5.1
Dimension(L×W×H) 24.0*16.0*3.2(mm)

The WG238 is a Bluetooth dual-mode 5.1 and Wi-Fi 802.11n module. The module integrates hardware and software resources needed to complete Wi-Fi and Bluetooth applications, supports AP and STA dual role connections, and supports both classic and low-power Bluetooth connections.

WG238 has a wealth of peripherals, such as PWM, I2C, UART, SPI, SDIO and IRDA. You can download and burn the program directly through UART. Up to six channels of 32-bit high-speed PWM output use the chip ideal for high quality LED control. Each 2 PWM can be configured for phase-controlled differential mode to support motor and lamp strip drives.

WG238 internally integrates priority-based Wi-Fi and Bluetooth coexisting control module to realize real-time priority and dispatch.WG238supports external PA and LNA extensions by providing an indication of the transceiver status of the current transceiver.

WG238 has built-in EFUSE and supports OTP reading and writing within Flash, which can be used to provide unique serial numbers, code encryption, and secure debugging interfaces. Internal integration of true random number generator and security module, ensure the security of communication and fast authentication and network connection.

The WG238 supports low-power sleep mode, and the MCU can enter the sleep state and reach the microamp level of sleep current. The WG238supports deep sleep mode, which can run 32 bit clock at several microampals of current and can be awakened by this clock or by any GPIO.

WG238is a compact WIFI module that supports 802.11b/g/n single-stream, low-power application processor. It is a low cost serial WIFI module that supports UART-WIFI-ethernet data transmission.


◆ IEEE 802.11b/g/n WLAN / 802.11 b/g/n

◆Integrated classic Bluetooth and low power BLE system

◆ Bluetooth and Wi-Fi share antennas and transceiver circuits

◆ Internal priority-based scheduling logic ensures the stability of Bluetooth and Wi-Fi dual connections and the efficient sharing of air resources

◆ 802.11n (2.4 GHz) up to 150Mbps

◆ Support STA and AP

◆AT Set, cloud server, application

◆Network protocol: IPv4, TCP/UDP/HTTP/FTP

◆ 256 KB internal RAM

◆ 4 MB internal Flash

◆ 256 Byte ~ 2K Byte OTP

◆ Wi-Fi Protected Access (WPA)/WPA2/ WPA2 Enterprise/Wireless Network Connection Accepted Settings (WPS)

◆ Six - way high - speed 10 - bit multi - channel ADC, and support internal filtering to 16 - bit




Hardware Features
Module WG238
Antenna type PCB Antenna or IPEX Connector
Voltage 3.3V+/-10%
Dimensions(L×W×H) 24.0mm*16.0mm*3.2mm
environment Operating Temperature: -20℃~70℃
Storage Temperature: -40℃~125℃
Operating Humidity: 10%~90% non-condensing
Storage Humidity: 5%~90% non-condensing
2.4GHz WIFI Features
Wireless standards IEEE 802.11 b/g/n
Frequency range 2.412-2.484GHz
Data rates IEEE 802.11 b Standard Mode: 1,2,5.5,11Mbps
IEEE 802.11 g Standard Mode: 6,9,12,18,24,36,48,54Mbps
IEEE 802.11 n Standard Mode: 150Mbps @ HT40(MCS7)
2.4G Receive sensitivity HT20 MCS7 : -71dBm@10% PER(MCS7)
OFDM 54M: -73dBm@10% PER
CCK, 11M: -88dBm@ 8% PER
Wireless security Support of WEP, WPA, WPA2, WPA3 (Personal and Enterprise modes)
Wireless transmit power with ±2dBm tolerance IEEE 802.11n: 12dBm@HT20 MCS7
IEEE 802.11g: 13dBm
IEEE 802.11b: 18dBm
Work mode Soft AP/ Station

IOT (internet of things)

Network Consumer Device


Building Automation

Home Automation

Smart Home Gateway

Smart Lighting

Smart Plugs and Lights

Baby Monitors

Mesh Network

Sensor Network

Industry Control

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;