wiring up a Arduino to relay?

Forum 2005-2010 (read only) General Frequently-Asked Questions
1

Got a CRYDOM 25A SOLID STATE RELAY 240V AC 25A LOAD (3 - 32V INPUT) in the post, just wonder if anyone schismatic for hooking the arduino in the best way. :-*

2

Just wire the positive input terminal to an Arduino output pin, the negative input terminal to a Arduino ground pin. The two AC terminals go in series with the AC hot lead. A setting the output pin high will cause AC current to flow to the load, and setting it low will turn it off.

Lefty

3

thank you as always retrolefty :-*