I started making a bill of materials (BOM) for the power monitor and realized that each node was likely to cost $30 or more.\u00a0 With 30 nodes to make, I am looking at a $900 in parts. Perhaps I need to rethink the project. I was originaly going to just mux the 30 sensors to one ADE7763 chip to get Vrms and Irms and I was going to compute power and integrate energy usage myself. But after playing with the ADE7763, I fell in love with its ability to do the energy integrations. But I am not sure it is worth the $870 dollars for a unique node per branch circuit. Perhaps I need to go back and look at the mux and doing the computations myself.<\/p>\n","protected":false},"excerpt":{"rendered":"
I started making a bill of materials (BOM) for the power monitor and realized that each node was likely to cost $30 or more.\u00a0 With 30 nodes to make, I am looking at a $900 in parts. Perhaps I need … Continue reading