美國製 RFM95W LoRa Radio Transceiver Breakout – 868 /915 MHz 雙頻無線傳輸模組 含 SMA天線接頭

商品說明

Adafruit RFM95W LoRa Radio Transceiver Breakout – 868 /915 MHz 產品介紹

This is the 900 MHz radio version, which can be used for either 868MHz or 915MHz transmission/reception

+20dBm的LoRa分組無線電，但可以進一步延伸。他們可以使用簡單的有線天線輕鬆地走2 Km視線，或者使用定向天線和設置調整可達20Km

• 分組廣播與即將到來的Arduino圖書館
• 使用免授權的ISM頻段：“歐洲ISM”@ 868MHz或“980MHz的”美國ISM“
• 為uFL或SMA無線電連接器使用簡單的有線天線或現場
• SX1276基於LoRa®的帶SPI接口的模組
• +5至+20 dBm至100 mW功率輸出能力（軟件可選擇功率輸出）
• + 20dBm傳輸期間〜100mA峰值，有源收音期間〜30mA。
• 範圍約 2Km，取決於障礙物，頻率，天線和功率輸出

原廠技術導覽 https://learn.adafruit.com/adafruit-rfm69hcw-and-rfm96-rfm95-rfm98-lora-packet-padio-breakouts

These modules are great for use with Arduinos or other microcontrollers, say if you want a sensor node nework or transmit data over a campus or town. The trade off is you need two or more radios, with matching frequencies. WiFi and BT, on the other hand, are commonly included in computers and phones.

These radio modules come in four variants (two modulation types and two frequencies) The RFM69’s are easiest to work with, and are well known and understood. The LoRa radios are exciting and more powerful but also more expensive.