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Briefly speaking
Serial server devices USR-N668 listen on the setting port and wait for a TCP client connection
MCP73113 datasheet
Control up to 127 sensors using two wires
Milesight EM500 CO2 Sensor (4 in 1) RAK WisBlock Briefly speakingMilesight EM500 CO2 Sensor (4 in 1) EM500 CO2 is designed for measuring gaseous carbon dioxide (CO2) concentration in harsh environments. It is useful in the application where knowing CO2 level is important as a greenhouse, building ventilation, fruit and vegetable storage. Besides, it also supports temperature, humidity and barometric pressure measurement. 4 in 1 (CO2, barometric pressure, humidity, temperature) Measuring ranges from 400ppm to
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