BC805M Compact, Lowest Cost BLE 5.2 Module Ver 1.02, Jan. 2021 BluNor BC805M Series module is a powerful, highly flexible, ultra low power Bluetooth Low TM Energy (BLE) using Nordic nRF52805 SoC. With an ARM Cortex M4 MCU, available 192KB flash, 24 KB RAM, embedded 2.4GHz multi-protocol transceiver, and an integrated PCB trace antenna. It allows faster time to market with reduced development cost. Specications: nRF52805, ARM Cortex M4, 64 MHz SPI masters/slaves Flash/RAM: 192KB/24KB. I2C compatible 2-wire masters/ Complete RF solution with integrated antenna slaves BLE 5 data: 2Mbps,1Mbps 1x UART (CTS/RTS) Proprietary 2.4 GHz protocols 2x real time counters (RTC) DC-DC converter, inductors on board. AES hardware encryption 4.6 mA peak current at 0 dBm TX. SoC Receiver Sensitivity: -97 dBm at 1Mbps 4.6 mA peak current at RX. SoC TX power: programmable +4dBm to 32 MHz main crystal on board. -20dBm in 4 dB step. Embedded RC sleep oscillator or external Max. TX power per FCC reports: +5.2 dBm. 32.768 KHz sleep crystal Castellated 14 pins. Serial Wire Debug (SWD) 10 GPIO pins plus SWDIO, SWDCLK. Supports SoftDevice S112, S113 soon. Operation voltage: 1.7V to 3.6V Up to 4 connections as a Peripheral Operation temperature: -40C to +85C concurrently with a Broadcaster. QDID: 138610 Supports Bluetooth Channel Selection Algorithm FCC ID: X8WBC805M 2 (CSA 2). Improving coexistence and ISED ID: 4100A-BC805M reducing interference. CE: Compliant (including EN300 Over-the-Air (OTA) rmware update 328 V2.2.2) Programmable peripheral interconnect (PPI) Japan TELEC: 201-200778/00 2-channel 12 bit/200kbps ADC Australia RCM: Compliant Temperature sensor 3 x 32 bit timers with counter mode Model Summaries module BC805M MCU nRF52805 Flash/RAM 192KB/24KB Size, mm 10x14.3x1.9 Max. TX power +5.2 dBm BT Antenna PCB trace BT range,1 Mbps, LMPI 340 meters, est. BT range, 1Mbps, 1.52m 270 meters, est. Availability Production 1BC805M Compact, Lowest Cost BLE 5.2 Module Ver 1.02, Jan. 2021 Table Of Contents 1. Introduction ........................................................................................................................................................3 BC805M Block Diagram ....................................................................................................................................3 BC805M Compact BLE 5.2 Module ...................................................................................................................3 2. Codes Development Using Nordic Tools ...........................................................................................................4 Easy, fast and safe code development ..............................................................................................................4 Over-The-Air DFU .............................................................................................................................................4 SoftDevices .......................................................................................................................................................4 Development Tools ............................................................................................................................................4 3. Product Descriptions .........................................................................................................................................5 Block Diagram of nRF52805 .............................................................................................................................5 Mechanical Drawings ........................................................................................................................................6 Pin Assignments of BC805M .............................................................................................................................7 Pin Function .......................................................................................................................................................7 Mounting BC805M on the Host PCB .................................................................................................................8 Host Board Layout .............................................................................................................................................8 4. Bluetooth Range Measurements .......................................................................................................................9 Estimated Measurement Results .......................................................................................................................9 Deployment Recommendations ........................................................................................................................9 5. BC805M Evaluation Board ..............................................................................................................................10 Nordic Development Tools ...............................................................................................................................10 Android OS Apps .............................................................................................................................................11 iOS Apps ..........................................................................................................................................................11 BC805M EvaluationBoard Schematics ............................................................................................................12 Suggestion for Battery Power Application .......................................................................................................13 6. Production .......................................................................................................................................................14 Preloaded Firmware ........................................................................................................................................14 AT Command Codes .......................................................................................................................................14 Soldering Temperature-Time Profile for Re-Flow Soldering ............................................................................15 Cautions, Design Notes, and Installation Notes ..............................................................................................15 Packaging ........................................................................................................................................................18 FCC Label .......................................................................................................................................................18 Revision History ..................................................................................................................................................19 7. Contact Us .......................................................................................................................................................20 2