10.11mm LM931 Bluetooth low energy Module Product LM931 Part No See Last Page Standalone (With Embedded Bluetooth v4.1 Stack) Revised 29/AUG/2017 2.50mm Features Bluetooth v4.1 specication I C and UART 14 mA Current Consumption (at 0 dBm Tx Output Power) 9 digital and 3 analogue I/O (10-bit ADC) IC Antenna Onboard (Peak Gain = 0.5 dBi) Wake-up interrupt and Watchdog timer 9 dBm Tx Output Power (Max) and -92 dBm Rx Sensitivity 4 PWM channels Over-the-Air Upgrade (OTAU) available 22mm x 10.11mm x 2.50mm Application Firmware Support SMT Side and Bottom Pads for easy production IoT Applications available including Serial over GATT, See our website for this products certications Eddystone Beacon and Cloud Sensor & Cloud Collector RoHS, REACH and WEEE Compliant Solution Fully integrated module with no additional components required Overview The LM931 Bluetooth low energy module is designed for use within embedded systems. It is implemented as a peripheral device within a product, while saving the developer valuable PCB space. The LM931 enables wireless communication with other nearby Bluetooth low energy devices (e.g. iOS and Android) using a highly power e cient connection. The transmission output power ranges from 0 dBm to 9 dBm and can be congured to provide an extended battery life or a longer communication range. This single core standalone module combines a Bluetooth low energy radio using a Bluetooth v4.1 stack, plus a microcontroller with 512 kB EEPROM for running the application. The LM931 incorporates 27 pin outs including UART and I C for interfacing with a wide range of peripheral devices like sensors. Its SMT side and bottom pads allow for easy manufacture and placement into your product. Application rmware and conguration settings can be preloaded to the module before supply. LM o er bespoke integration into your product by supporting your developer. We can also assist in the development of new applications for the module. IoT Applications such as Serial over GATT, iBeacon and Key Fob (with RGB LED Controller) are available with the modules LM53X development kits. The rmware is customisable to meet your requirements. LM931 +44(0) 207 428 2647 sales lm-technologies.com Page 1 of 14 22mmProduct LM931 LM931 Bluetooth low energy Module Part No See Last Page Standalone (With Embedded Bluetooth v4.1 Stack) General Specication Wireless v4.1 Bluetooth Standard Standalone (Embedded Bluetooth Stack) Module Type GATT-Based Proles Hardware Qualcomm Chipset IC Antenna Onboard Antenna 16-bit RISC Microcontroller (MCU) 512 kB EEPROM Memory 64 kB RAM SPI Programming Interface I C, UART, AIO and PIO Interfaces 3V3 (3V6 Max) Power Supply 32 kHz and 16 MHz Crystal Oscillators LM53X Development Kit RF Characteristics 0 dBm to 9 dBm Tx Output Power -92 dBm (Typical) Rx Sensitivity 14 mA (at 0 dBm), 15.9 mA (at 3 dBm) and <25 mA (at 9 dBm) Current Consumption (Continuous Tx) 22 mA (Typical) Current Consumption (Continuous Rx) Up to 55m Range (in open space) Up to 1 Mbps Data Rate 2.4 GHz to 2.485 GHz Frequency Physical Characteristics Operating Temperature -30C to +85C Dimensions (L x W x H) 22mm x 10.11mm x 2.50mm Weight 0.83g Certications See our website for this products certications Compliance RoHS, REACH and WEEE Compliant Solution LM931 +44(0) 207 428 2647 sales lm-technologies.com Page 2 of 14