Software
LM813 RTL8821CU Windows 10, 8.1, 8, 7, Vista, XP Drivers (Bluetooth & WiFi)
LM813 RTL8821CU Linux Driver v5.81 (WiFi)
Case Studies
LM Technologies showcases innovative new Bluetooth® Auracast™ solutions in collaboration with Realtek at Embedded World 2025
At Embedded World 2025 in Nuremberg, LM Technologies introduces it’s new range of Bluetooth Auracast innovations including the LM509 adapter and the LM923 module. These new products are ideal…
WiFi and Dual Mode Bluetooth® 4.2 Combination Module – LM813
£100.00
The LM813 Series Combination Module supports both WiFi 802.11ac with data rates up to 433Mbps and Bluetooth® 4.2.
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Available: Out of stock
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Tech Spec
Additional Information
Wireless Standard Backward Compatibility Frequency 2.4 GHz and 5 GHz
Module Type - Host Controller Interface (HCI)
Interfaces - USB
Antenna IPEX Receptical
Dimensions - 25mm x 12mm x 2mm
Weight - 0.81g +/- 0.25g tolerance
Operating Temperature - -20°C to +85°C
Bluetooth Technology Bluetooth Classic
Compatibility Compliance Certifications -
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Description
USB Interface module with added terminals for enabling GPIO’s and Bluetooth Functions to enable coexistence. This IPEX, module operates under 2.4GHz or 5Ghz. LM813 is compliant to IEEE 802.11ac/ a/b/g/n, and Bluetooth® v2.1, v3.0 and v4.2 standards. Currently Bluetooth® includes EDR transmission and supports bandwidths up to 2Mbps, or in HS Mode up to 3Mbps. The module design is based on a Realtek reference, which LM engineer's have made some modifications, which include; Upgrading the PCB material to -40°C rated components and using a high quality -40°C low temperature crystal. The main IC from Realtek is only rated at 0°C. Our temperature testing is conducted up to -40°C and the module has achieved good results. Although the testing period is only subject to a 72h test period, we have run previous modules using the same brand of BOM material in longer periods of temperature testing. These tests are continuous and enable us to support for -20°C Operating and -30°C Storage Temperature under our own 24 month warranty, from date of dispatch. We have added a heat resistant coating to the bottom of the module enabling higher temperature protection during the re-flow processing in production. -
Features
- 1T1R One IPEX Antenna Output
- 802.11ac MIMO solution for 5G band
- 433Mbps High Speed WLAN
- IEEE standards support: IEEE 802.11ac/a/b/g/n
- WPA/WPA2 certification for WiFi
- Bluetooth® 4.2 Dual Mode
- 5v or 3.3v Supply Options
- USB 2.0 (Full Speed) and PCM interface
- Support for WiFi/Bluetooth® Coexistence, with both technologies active a slight drop in WiFi throughput is noted.
- Bluetooth® adaptive power management mechanism
- Linux Support Kernel : 2.6.24 ~ 4.15.17
- Supported for Windows 7, 8, 8.1 and 10
Case Studies
LM Technologies showcases innovative new Bluetooth® Auracast™ solutions in collaboration with Realtek at Embedded World 2025
At Embedded World 2025 in Nuremberg, LM Technologies introduces it’s new range of Bluetooth Auracast innovations including the LM509 adapter and the LM923 module. These new products are ideal…
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