آر اف (فرکانس رادیویی) و بی‌سیم ماژول‌ فرستنده‌گیرنده و مودم آر اف

Product Attributes

Introduction

BluNor BM833 is powerful, highly flexible, ultra low power Bluetooth Low Energy (BLE) modules using Nordic nRF52 SoCs. With an ARM CortexTM M4F MCU, available 512KB flash, 128KB RAM, embedded 2.4GHz multiprotocol transceiver, and an integrated antenna or an u.FL connector for external antenna, it allows faster time to market with reduced development cost. The following is a block diagram of BM833. Antenna circuit and main clock are integrated. All 32 GPIOs of nRF52833 can be accessed from main board. For lower power consumption at idle state, a 32.768 kHz crystal is added on the host board. Connection to an external NFC (Near Field Communication) antenna is provided. BM833A is sister module of BM833 using nRF52811 instead. BM833 has 42 GPIOs comparing to 32 GPIOs for BM833A. Soldering pad footprints are compatible.

Features

• Angle-of-Arrival (AoA) and Angle-of-Departure (AoD) direction finding using Bluetooth
• RSSI, 1 dB resolution
• Serial Wire Debug (SWD)
• Nordic SoftDevice Ready
• Over-the-Air (OTA) firmware update
• 32 General purpose I/O pins
• 12 bit/200KSPS ADC, 8 configurable channels with programmable gain
• 2X SPI Master/Slave (8Mbps)
• 4-channel pulse width modulator (PWM)
• Low power comparator
• 2-wire Master/Slave (I2C compatible)
• Digital microphone interface (PDM)
• UART (with CTS/RTS and DMA)
• 20 channel CPU independent Programmable Peripheral Interconnect (PPI)
• Quadrature Demodulator (QDEC)
• AES HW encryption
• 3x32 bit timer with counter mode
• 2x realtime counter
• Integrated DC-DC converter
• Embedded inductors for DCDC converter
• Cortex M4F at 64 MHz
• Max SoC TX power: +8 dBm
• NFC-A tag interface for OOB pairing
• Secure boot ready
• 1.7V to 5.5V supply voltage
• USB 2.0 full speed controller (12 Mbps)