BlueNRG的蓝牙低耗能扩展板,用于STM32 Nucleo
The is a Bluetooth low energy expansion board based on BlueNRG for STM32 Nucleo boards. It is compatible with the Arduino UNO R3 connector layout and is designed around BlueNRG which is a Bluetooth low energy, low power network coprocessor compliant with BTLE 4.0. BALF-NRG-01D3 an ultra miniature balun optimized for ST BlueNRG RFIC which integrates matching network and harmonics filter. The X-NUCLEO-IDB04A1 board connects with STM32 MCU via SPI pin to change default SPI clock, SPI chip select and SPI IRQ settings by changing one resistor on the evaluation board.