After some work I did with triacs and dimming, I have made a AC power shield! It has 4 triac driven outputs, my current prototype can only handle about 1A per channel, but The final version I am hoping for 2.5A or more (300W). It also includes a zero-cross detection circuit to be able to use an interrupt and dim AC devices. I have 2 or 3 prototypes for sale (will work fine for testing and simple use) for $25. Please let me know if you are interested an have the time in the next week to test this and let me know if I should make any changes before I order a first production batch. I am hoping to keep the price around $30.
The only problem I had with the prototype batch is the routing of the pins... I am not sure if I should do a separate female header row (like the prototype shield) or find some long tail female headers to go through.
Please let me know if you are interested in testing one of the prototypes (only charging to recoup some of my cost - I will make sure you get a big discount on the final version!).
http://picasaweb.google.com/lh/photo/7iQ0pX2SD8FITkhaYWesrg?authkey=Gv1sRgCKmvsNPa09u83AE&feat=directlink http://picasaweb.google.com/lh/photo/Ftbgdp2FY0f2EkxjATcp6g?authkey=Gv1sRgCKmvsNPa09u83AE&feat=directlink http://picasaweb.google.com/lh/photo/7JUzjbmLYT0cptQ-YmwgmA?authkey=Gv1sRgCKmvsNPa09u83AE&feat=directlink http://picasaweb.google.com/lh/photo/SRG1O1kYR1qw0RmrRe2YXQ?authkey=Gv1sRgCKmvsNPa09u83AE&feat=directlink http://picasaweb.google.com/lh/photo/I3srijjnzyYpC4Ix3vn8nQ?authkey=Gv1sRgCKmvsNPa09u83AE&feat=directlink