References
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[REF 1] "Interface One Channel Relay Module with Arduino", Last Minute Engineers [Article]
[REF 2] "Types of Switches – Special Applications by Touch Control", Wat Electronics [Article]
[REF 3] "Different Types of Relays, Their Construction, Operation & Applications", Electrical Technology [Article]
[REF 4] "A Student's Guide to Maxwell's Equations", Daniel Fleisch [Book]