卖[物聯汪汪] 含稅附發票~ Raspberry Pi 樹莓派 LoRa/GPS HAT - 支持 868M 頻率最好的价格

本賣場商品一律含稅開發票，需要統編者請下單後備註公司名 Description The Dragino Lora/GPS HAT is an expansion module for LoRaWan and GPS uses with the Raspberry Pi. This product is intended for those interested in developing LoRaWAN solutions. The Lora/GPS HAT is based on the SX1276/SX1278 transceiver. The add on L80 GPS (Base on MTK MT3339) is designed for applications that use a GPS connected via the serial ports to the Raspberry Pi such as timing applications or general applications that require GPS information. The transceivers of the Lora/GPS HAT feature the LoRa™ long range modem that provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption. The Lora/GPD HAT can achieve a sensitivity of over -148dBm using a low cost crystal and bill of materials. The high sensitivity combined with the integrated +20 dBm power amplifier yields industry leading link budget making it optimal for any application requiring range or robustness. LoRa™ also provides significant advantages in both blocking and selectivity over conventional modulation techniques, solving the traditional design compromise between range, interference immunity and energy consumption. This board can calculate and predict orbits automatically using the ephemeris data (up to 3 days) stored in internal flash memory, so the HAT can fix position quickly even at indoor signal levels with low power consumption. With AlwaysLocate™ technology, the Lora/GPS HAT can adaptively adjust the on/off time to achieve balance between positioning accuracy and power consumption according to the environmental and motion conditions. The GPS also supports automatic antenna switching function. It can achieve the switching between internal patch antenna and external active antenna.Moreover, it keeps positioning during the switching process. FEATURES Frequency Band: 868 MHZ/433 MHZ/915 MHZ(Pre-configure in factory) Compatible with Raspberry Pi 2 Model B/Raspberry Pi 3. LoRa™ Modem FSK, GFSK, MSK, GMSK, LoRa™and OOK modulation Preamble detection Baud rate configurable Built-in temperature sensor and low battery indicator Excellent blocking immunity Automatic RF Sense and CAD with ultra-fast AFC Support DGPS, SBAS(WAAS/EGNOS/MSAS/GAGAN) GPS automatic switching between internal patch antenna and external active antenna PPS VS. NMEA can be used in time service Support SDK command Built-in LNA for better sensitivity EASY™, advanced AGPS technology without external memory AlwaysLocate™, an intelligent controller of periodic mode GPS FLP mode, about 50% power consumption of normal mode GPS support short circuit protection and antenna detection SPECIFICATIONS Lora Spec: 168 dB maximum link budget. +20 dBm - 100 mW constant RF output vs. +14 dBm high efficiency PA. Programmable bit rate up to 300 kbps. High sensitivity: down to -148 dBm. Bullet-proof front end: IIP3 = -12.5 dBm. Excellent blocking immunity. Low RX current of 10.3 mA, 200 nA register retention. Fully integrated