This device could literally save your life. When you're in remote locations—hiking in mountains, camping in forests, exploring deserts, or working in rural areas—cell phone service often disappears, ...
Stratum 1 NTP Server based on WeMos D1 Mini board (ESP8266 processor) and a u-blox NEO-6M (or better) GPS Module. Note: We need a GPS module which supports ZDA NMEA messages to be enabled. Our NTP ...
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