Hi, i want to be able to send data thru the Tx and Rx pins of the serial ports in order to control their voltage levels. This is to be interface with a relay. Is there any ways which allow me to send +5v or -5V to thru the serial port? Thanks
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Hi, i want to be able to send data thru the Tx and Rx pins of the serial ports in order to control their voltage levels. This is to be interface with a relay. Is there any ways which allow me to send +5v or -5V to thru the serial port? Thanks