# Bill of Materials (BOM) | Part | Quantity | Note | Link | | --------------------------- | -------: | ------------- | ------------------------------------------ | | ESP Microcontroller | 1 | | | | SCT-013-100 | 3 | one per phase | http://openenergymonitor.org/emon/node/156 | | 10 kOhm Resistors 1/4 W | 6 | two per phase | | | 22 Ohm Resistor 1/4 W | 1 | | | | 10 uF Elko 10 V | 3 | | | | 3,5 mm audio jack connector | 3 | | |