Bluetooth 5 Module BT832, BT832A, BT832F, BT832AF Ver 2.03 Aug. 2017 BluNor BT832 Series is a powerful, highly flexible, ultra low power Bluetooth Low Energy (BLE) modules using TM Nordic nRF52 SoC. With an ARM Cortex M4(F) MCU, up to 512KB flash, 64KB RAM, embedded 2.4GHz multi-protocol transceiver, and an integrated PCB trace antenna. It allows faster time to market with reduced development cost. For applications needing limited number of IO pins, prototyping and production are easier using 16 castellated pins. Additional 24 LGA (Land Grid Array) pins provide full access to 32 GPIOs of nRF52832. Bluetooth 5 specifications allow reducing bandwidth to achieve up to 4X range while maintaining similar power requirements. Line of sight range between two BT832Fs is measured at 220 to 330 o meters at 1Mbps data rate. Average of 12 measurements (rotate one antenna by 30 each time) is 270 meters. BT832Fs achieve longer range by superior antenna circuit and without an external power amplifier, not by reducing bandwidth. Specications: Nordic nRF52 with ARM Cortex M4F. 20 channel CPU independent Programmable Complete RF solution with integrated antenna Peripheral Interconnect (PPI). Integrated DC-DC converter Quadrature Demodulator (QDEC) Serial Wire Debug (SWD) 128-bit AES HW encryption Nordic SoftDevice Ready 5 x 32 bits, 3 x 24 bits Real Time Counters (RTC) Over-the-Air (OTA) rmware update Available NFC-A tag interface for OOB pairing Flash/RAM: 512KB/64KB or 256KB/32KB. Receiver Sensitivity: -96 dBm at 1Mbps 32 General purpose I/O pins TX power: +/- 0 dBm programmable 4 dBm to 12 bit/200KSPS ADC, 8 congurable channels -20dBm in 4 dB steps. with programmable gain. Hybrid pins: 16 castellated and 24 LGA. 3X SPI Master/Slave (8Mbps) Integrated PCB trace antenna: 3X 4-channel pulse width modulator (PWM) Operation voltage: 1.7V to 3.6V Low power comparator Operation temperature: -40C to +85C 2 2X 2-wire Master/Slave (I C compatible) FCC ID: X8WBT832 I2S audio interface IC ID: 4100A-BT832 UART (with CTS/RTS and DMA) CE: Certified QDID: 97989 Applications Wearable Sensors Beacons/Proximity Home and building automation Fitness/Sports Key fobs Smart toys Wireless charger Connected appliances Interactive entertainment devices Lighting products Model Summaries module BT832 BT832A BT832F BT832AF SoC nRF52832 QFAA nRF52810 QFAA nRF52832 QFAA nRF52810 QFAA Flash/RAM 512KB/64KB 192KB/24KB 512KB/64KB 192KB/24KB Size 14x16x1.9mm 14x16x1.9mm 15x20.8x1.9mm 15x20.8x1.9mm Average Bluetooth range 100 meters 100 meters 270 meters 270 meters NFC Yes No Yes No 1Bluetooth 5 Module BT832, BT832A, BT832F, BT832AF Ver 2.03 Aug. 2017 Table Of Contents 1. Introduction ........................................................................................................................................................3 BT832 Block Diagram ........................................................................................................................................3 BT832 3 BT832A ..............................................................................................................................................................4 BT832F ..............................................................................................................................................................4 BT832AF ...........................................................................................................................................................4 2. Codes Development Using Nordic Tools ...........................................................................................................5 Easy, fast and safe code development ..............................................................................................................5 Over-The-Air DFU .............................................................................................................................................5 SoftDevices .......................................................................................................................................................5 Development Tools ............................................................................................................................................5 3. Product Overview ..............................................................................................................................................6 Nordic SoCs ......................................................................................................................................................6 Mechanical Drawings ........................................................................................................................................8 Pin Assignments of BT832 ..............................................................................................................................10 Pin Functions ...................................................................................................................................................11 Mounting BT832 on the Host PCB ..................................................................................................................12 Mounting BT832F on the Host PCB ................................................................................................................13 4. AT Commands .................................................................................................................................................14 Brief description of AT commands ...................................................................................................................14 Command mode ..............................................................................................................................................14 Data Mode .......................................................................................................................................................16 5. BT832 Evaluation Board .................................................................................................................................17 Communicating with a PC ...............................................................................................................................17 Evaluation Board Schematics ..........................................................................................................................17 Suggestion for Battery Power Application .......................................................................................................18 6. Miscellaneous ..................................................................................................................................................18 Soldering Temperature-Time Profile for Re-Flow Soldering ............................................................................18 Cautions, Design Notes, and Installation Notes ..............................................................................................18 Packaging ........................................................................................................................................................21 FCC Label .......................................................................................................................................................21 7. Contact Us .......................................................................................................................................................22 2