The USB-IDIO-16 USB/104 I/O module has 16 individually optically-isolated inputs. The optically-isolated inputs include channel-to-channel and channel-to-ground inputs. Compatible with USB 1.1 and 2.0 ...
Welcome to my quick review of an inexpensive 2-channel 5V relay module controlled via RS485 bus utilizing Modbus RTU protocol. As claimed by some online sellers, this easy-to-get Modbus RTU 2-Channel ...
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