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Using Current Transformers for Home Energy Monitoring - The Byte Sized Engineer | DigiKey

I’m tired of electricity bills that only show total usage, making it hard to identify energy-hungry appliances like HVAC systems or EVs. I’m ready to do something about this problem so in this video, I'll show you how to build a whole-home energy-monitoring system using current transformers to track your usage and find ways to save.

6/5/2026 5:47:39 PM

Part List

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
CONN JACK STEREO 3.5MM SMD R/ASJ-3523-SMT-TRCONN JACK STEREO 3.5MM SMD R/A107199 - Immediate$2.72View Details
RES 20 OHM 1% 1/8W 0603RNCP0603FTD20R0RES 20 OHM 1% 1/8W 060319343 - Immediate$0.31View Details
BREADBOARD GENERAL PURPOSE PTHDKS-SOLDERBREAD-01BREADBOARD GENERAL PURPOSE PTH425 - Immediate$7.70View Details