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+http://internetofhomethings.com/homethings/?p=530
+
+https://www.letscontrolit.com/forum/viewtopic.php?f=2&t=1078&p=5299&hilit=acs#p5299
+
+https://hilo90mhz.com/remote-power-monitoring-system-ac-or-dc-current-measurements/
+
+http://www.ti.com/product/INA219/datasheet
+
+http://www.ti.com/lit/ds/symlink/ads1115.pdf