I got all "energized" about this project, but unfortunately I have a Focus = meter by Landis & Gyr. Apparently the LED is only active for 24 hours after= each power up, making it useless to me. BB ________________________________________ From: piclist-bounces@mit.edu on behalf of Justin= Richards Sent: Friday, May 20, 2016 10:59 AM I ask because I would like to build a device similiar to a hackaday project called Internet-of-Things-Power-Meter which counts LED pulses produced by modern house power meters. On the hackaday project (and elsewhere) they state "Modern power meters have a LED blinking every time a Watt is used" I have yet to check but I think more correctly it flashes once every 1Wh.=20 --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .