Hello,
I need assistance in designing a ground isolation circuit for RX TX that I am feeding to an arduino board.
I have a third party controller that is powered by 110 VAC and the Neutral is common with the ground on the RX/TX. I am using that Ground (neutral) with my RX/TX to connect that with the arduino but i know its not safe, and that is why I need a circuit that can provide ground isolation for my RX/TX that is going to the arduino.
FYI: my baud rate is 115200. I understand that i have to use a optocoupler, but how and where, thats the question.
I dont have any schematics because there arent any, its just interfacing.
Thanks.
I need assistance in designing a ground isolation circuit for RX TX that I am feeding to an arduino board.
I have a third party controller that is powered by 110 VAC and the Neutral is common with the ground on the RX/TX. I am using that Ground (neutral) with my RX/TX to connect that with the arduino but i know its not safe, and that is why I need a circuit that can provide ground isolation for my RX/TX that is going to the arduino.
FYI: my baud rate is 115200. I understand that i have to use a optocoupler, but how and where, thats the question.
I dont have any schematics because there arent any, its just interfacing.
Thanks.