Home / Products / Wi-Fi Module / IoT Module / M4211LT1 1T1R 802.11b/g/n WiFi IoT Module


Share to:
facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
sharethis sharing button

M4211LT1 1T1R 802.11b/g/n WiFi IoT Module

  • AiW4211L
  • UART SDIO2.0
  • 2.4GHz
  • 72.2Mbps
  • 1x1 1T1R
  • 12*12*2.1mm
  • BL-M4211LT1


  • Without BT 

  • AICH 

  • 1T1R 



The BL-M4211LT1 low power consumption IoT module is designed base on AiW4211L, which is a highly integrated, high performance, and low cost 1T1R IEEE802. 11 b/g/n internet of thing (IoT) module. It supports 20 MHz standard bandwidth and 5 MHz/10 MHz narrow bandwidth, provides the highest PHY rate up to 72.2Mbps.  This module integrates a high-performance 32-bit microprocessor, supports UART, SDIO2.0 slave interfaces with clock frequency up to 50 MHz for device communication. BL-M4211LT1 is applicable to smart home appliances, intelligent lock, low-power cameras, switch buttons and other smart wireless devices.


  • Operating Frequencies: 2.4~2.4835GHz

  • IEEE Standards: IEEE 802.11b/g/n

  • Wireless PHY rate can reach up to 72.2Mbps

  • Embedded SRAM:352KB

  • Embedded Flash : 2MB

  • Provides variety of peripheral interfaces including SDIO,UART,I2S, I2C, SPI, PWM, ADC

  • Connect to the external antenna through half hole pad

  • Main Power Supply: DC3.3V±0.2V ;I/O power voltage VDIO DC 3.3V±0.2V or 1.8V±0.1V

Block Diagram

图片 1

General Specifications

Module Name




WLAN Standards

IEEE802.11b/g/n/, 1T1R, 2.4G, 72.2Mbps

Host Interface



Connect to the external antenna through half hole pad


12*12*2.1mm (L*W*H)

Power Supply

DC 3.3V±0.2V @ 450 mA (Max) main power

DC 3.3V±0.2V or 1.8V±0.1V I/O power

Operation Temperature

-40℃ to +85℃

Operation Humidity

10% to 95% RH (Non-Condensing)

Product Dimension

截屏2024-06-14 15.45.09

Module dimension: 12*12*2.1mm(L*W*H; Tolerance: ±0.15mm)

Package Dimensions



Package specification:

1. 1,000 modules per roll and 5,000 modules per box.

2. Outer box size: 37.5*36*29cm.

3. The diameter of the blue environment-friendly rubber plate is 13 inches, with a total thickness of 28mm 

    (with a width of 24mm carrying belt).

4. Put 1 package of dry agent (20g) and 1 humidity card in each anti-static vacuum bag.

5. Each carton is packed with 5 boxes.


Related Products

Guangming District, Shenzhen, as a research and development and market service base, and equipped with more than 10,000m² automated production workshops and logistics warehousing centers.

Quick Links

Leave a Message
Contact Us

Product Category

Contact Us

  +86-13923714138
 +8613923714138
  Business Email: sales@lb-link.com
  Technical support: info@lb-link.com
  Complaint email: complain@lb-link.com
  Shenzhen Headquarter: 10-11/F, Building A1, Huaqiang idea park, Guanguang Rd, Guangming new district, Shenzhen, Guangdong, China.
 Shenzhen Factory: 5F, Building C, No.32 Dafu Rd, Longhua District, Shenzhen, Guangdong, China.
Jiangxi Factory: LB-Link Industrial Park, Qinghua Rd, Ganzhou, Jiangxi, China.
​Copyright © 2024 Shenzhen Bilian Electronics Co., Ltd. All rights reserved. | Sitemap | Privacy Policy