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1.Easy to use and quick to get started
2.The process supports design scales of 300 devices or 1000 pads
3.Supports simple circuit simulation
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3.More rigorous design constraints, more standardized processes
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STD RS232-TTL Interface
License: Public Domain
The circuit matches the RS232 signal of a PLC to the TTL level of an Arduino.
By means of a pin header the Arduino is attached to the PCB.
Through the D-SUB connector a connection with the PLC is established.
Further IO is provided by PCB terminals from WAGO:
X2: 5V
X3: Arduino D2
X4: GND
Furthermore, a potentiometer was installed to be able to apply a variable level to A0.
The MAX232 was used according to the typical application.
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