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It uses the very popular FTDI FT231X USB to Serial converter IC (as used on most standard Arduino models)
Up to 64KB of SRAM
I2C level shift circuitry and a voltage supply selection jumper — all found on the shield
Single Shot mode: While working in this mode
is essential for the city’s operations and maintenance
SW3L LoRaWAN Wireless Outdoor Flow Meter Battery-Powered Sensor Power Option:SW3L-LB with Replaceable 8500mAh Battery It uses the very popularSW3L LoRaWAN Wireless Outdoor Flow Meter Battery Powered Sensor The Dragino SW3L is a LoRaWAN Flow Sensor. It detects water flow volume and uplink to IoT server via LoRaWAN network. User can use this to monitor the water usage for buildings. SW3L is powered by 8500mAh Li SOCI2 battery, It is designed for long term use up to 10 years. (Actually Battery life depends on the use environment, update period.) The SW3L will send water flow volume every 20