Bluetooth® 5.0 Dual Mode Module – LM074
It’s RF antenna interface provides the option to add an antenna that suits your requirements e.g. a dipole and PCB antenna. The selected antenna could provide a longer range, omnidirectional or unidirectional connection.
This single core standalone module combines a Bluetooth® low energy and v2.0, v2.1 radio using a dual mode Bluetooth® 5.0 stack, plus a microcontroller unit with an 8 Mbit flash memory for running the application.
It also incorporates 38 pin outs, including I2C, UART and USB for interfacing with peripheral devices. It’s SMT side and bottom pads allow for easy manufacture and placement within your product.
LM offer bespoke integration into your product by supporting your developer, including development of new applications for the module. We also offer Bluetooth® Dual Mode demo applications, which can be customised to your specification.
The AT Command set makes configuration of the firmware simple. The developed firmware and settings can be preloaded to the module, simplifying the manufacturing and testing process.
Documentation
User Guides
SPP with GAP Central (Default)
Dynamic and Fixed Pin Sharing Guide
LM068 / LM074 / LM961 – AT commands for Universal Firmware
* For any other product documentation please Contact Us
Applications
LM offers firmware development support to assist with bespoke solutions. The LM074 Bluetooth® 5.0 Dual Mode module comes with a range of firmware for quick deployment. Firmware can be modified to meet your unique requirements or used for evaluation purposes.
Available Applications
SPP with GAP Central
SPP with GAP Central provides the flexibility of 1 SPP and up to 5 GAP Central connections simultaneously. SPP defines the setup of virtual serial ports for wirelessly connecting two Bluetooth (v1.0 – v3.0) devices; where the LM074 is set as the master (DTE) or slave (DCE) role. An ideal solution for wirelessly replacing RS232 serial cables. The module also supports “modem” command for the RTS/CTS/DTR/DSR lines. LM074 is defined as a GAP Central device for initiating Bluetooth low energy connections with nearby peripheral devices. Implemented with Over-the-Air Upgrade (OTAU) functionality for fast and convenient firmware updates. Users can read, write or modify data on the connected devices by utilising simple AT commands. It also supports a whitelist feature for Bluetooth low energy connections.
Latest firmware version: 074LM_SPPC_0201
Firmware Version Record for SPP with GAP Central
SPP or GAP Peripheral
SPP or GAP Peripheral allows the LM074 to run either SPP (Serial Port Profile) via Bluetooth (v1.0 – v3.0) or GAP Peripheral via Bluetooth low energy. SPP defines the setup of virtual serial ports for wirelessly connecting two Bluetooth (v1.0 – v3.0) devices; where the LM074 is set as the master (DTE) or slave (DCE) role. An ideal solution for wirelessly replacing RS232 serial cables. The module also supports “modem” command for the RTS/CTS/DTR/DSR lines. LM074 is defined as a GAP Peripheral device for accepting a Bluetooth low energy connection from master devices in range. It includes Over-the-Air Upgrade (OTAU) functionality for effortless firmware updates and SPP over GATT service for serial communication through Bluetooth low energy.
Latest firmware version: 074LM_SPPPER_0105
SPP to Serial Bridge
SPP to Serial Bridge enables incompatible Bluetooth (v1.0 – v3.0) and Bluetooth low energy devices to communicate via LM074. The application is implemented on top of the CSR dual mode stack that provides the flexibility to communicate with any Bluetooth device. A simple AT commands set is available to establish and control the two simultaneous connections that form the bridge between a Bluetooth (v1.0 – v3.0) and a Bluetooth low energy device. It also supports simple secure pairing for Bluetooth connections, a whitelist feature for Bluetooth low energy connections and SPP over GATT service for serial communication through Bluetooth low energy.
Latest firmware version: 074LM_BDG_0101
Certifications
View the certifications for this product.
