截至 2020 年底，Raspberry Pi 已經銷售了三千七百萬台，並且被廣泛應用在個人創客、學校教學或是量產品上。但如果是想做單純 I/O 功能的應用，就需要考慮使用樹莓派的限制了。因為 Raspberry Pi 的功耗至少是 100 毫瓦(milliwatts)起跳，而且 Raspberry Pi(包括 Zero 系列)都沒有支援類比輸入，而使用 Linux 作業系統更不適合低延遲的場景。
《規格》
* 1GHz single-core ARMv6 CPU (BCM2835)
* VideoCore IV GPU, 512MB RAM
* Mini HDMI and USB on-the-go ports
* Micro USB power
* HAT-compatible 40-pin header
* Composite video and reset headers
* CSI camera connector
* 802.11n wireless LAN
* Bluetooth 4.0
The RN2483 LoRa® Mote is a LoRaWAN™ Class A end-device based on the RN2483 LoRa modem. As a standalone battery-powered node, the Mote provides a convenient platform to quickly demonstrate the long-range capabilities of the modem, as well as to verify inter-operability when connecting to LoRaWAN v1.0 compliant gateways and infrastructure.
The Mote includes light and temperature sensors to generate data, which are transmitted either on a fixed schedule or initiated by a button-press. An LCD display provides feedback on connection status, sensor values and downlink data or acknowledgements. A standard USB interface is provided for connection to a host computer, providing a bridge to the UART interface of the RN2483 modem. As with all Microchip RN family of products, this enables rapid setup and control of the on-board LoRaWAN protocol stack using the high level ASCII command set.
《特色》 * 868 MHz High-Frequency SMA Connector
* 433 MHz Low-Frequency Antenna test Point
* USB Mini-B Connector
* PIC18LF45K50 8-bit MCU
* Mote ICSP Programming
* LCD Display
* S1 & S2 Switches (for Menu Navigation)
* Ambient Light Sensor
* Linear Active Thermistor (MCP9700T)
* LDO Regulator (MCP1825S)
* Descriptive LEDs, (2) Controlled by PIC18, (2) Controlled by Module * (2) AAA Battery Pack
* Battery Power Switch
* Alternative Power Supply Through Hole Connectors
《規格》
* Manufacturer: Microchip * Frequency: 433 MHz, 868 MHz/915 MHz * Output Power: 14dBm
* Operating Temperature Range: -40ºC to 85ºC
* Input Sensitivity -148mVpp
* Rx Input Sensitivity -148dB
* TX Current Consumption: 40mA (14dBm, 868MHz)
* RX Current Consumption: 14.2mA
* Interface Type: UART
* Unit Weight: 221.400 g
《套件內容》 * RN2483 LoRa® Technology Mote
* SMA Antenna
* USB (standard-A to mini-B) cable
* Info Sheet DS50002391
* Pack Lis
