While a web site for the part you want would help, and a google search of the form “fritzing part 1 channel relay module” will in general find what is available, this post (first item in the search for me) may do what you want.
Peter
While a web site for the part you want would help, and a google search of the form “fritzing part 1 channel relay module” will in general find what is available, this post (first item in the search for me) may do what you want.
Peter