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These three sensors can be used for measuring angles
1 - Atlas Scientific
LR30X Datasheet
also can develop APP on the basis of standard BLE protocol
Serial RS485 Modbus to LoRaWAN Converter Camera-Image These three sensors can beSerial RS485 Modbus to LoRaWAN Converter The Dragino RS485 LN is an RS485 to LoRaWAN Converter. It converts the RS485 devices into LoRaWAN wireless network which simplify the IoT installation and reduce the installation maintaining cost. RS485 LN allows the user to monitor control RS485 devices and reach extremely long ranges. It provides ultra long range spread spectrum communication and high interference immunity whilst minimizing current
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