Expansion board STMicroelectronics I-NUCLEO-SX1272D
I-NUCLEO-SX1272D - High-performance RF transceiver expansion board featuring FSK, OOK and the LoRa long range modem for STM32 Nucleo-64
The SX1272 LoRa technology and high-performance FSK/OOK RF transceiver modem (I-NUCLEO-SX1272D) is a development tool to learn and develop solutions based on LoRa and/or FSK/OOK technologies.
The Semtech's proprietary LoRa modulation is a spread-spectrum technique that uses wideband linear frequency modulated pulses to encode information, whose frequency increases or decreases over a certain amount of time. Like with other spread-spectrum modulation techniques, the LoRa modulation uses the entire channel bandwidth to broadcast a signal, making it robust to the channel noise. In addition, because the LoRa modulation uses a broad band of the spectrum, the signal is resistant to long term relative frequency error, multi-path, fading and doppler effects.
The SX1272MB2xAS board is controlled through the SPI bus at a maximum speed of 10 Mbps. All the "Pass through" pins not used in the operations of the SX1272MB2xAS can be used for the connection of other boards. The I2C and UART have especially been let free so that a wide range of sensors can be connected to the board.
INUCLEOSX1272D, I NUCLEO SX1272D
Inside a huge PCB factory: https://www.youtube.com/watch?v=_XCznQFV-Mw