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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

ImagenNúmero de pieza del fabricanteDescripciónCantidad disponiblePrecioVer detalles
CURR SENSE XFMR 100A:0.05A 100A101990029CURR SENSE XFMR 100A:0.05A 100A511 - Inmediata$11.50Ver detalles
CURR SENSE XFMR 70A CHAS MNT101990065CURR SENSE XFMR 70A CHAS MNT112 - Inmediata$6.90Ver detalles
CURR SENSE XFMR 1800:1 20A CHAS101990061CURR SENSE XFMR 1800:1 20A CHAS294 - Inmediata$6.90Ver detalles
XIAO ESP32S3113991114XIAO ESP32S34114 - Inmediata$7.49Ver detalles
CONN JACK STEREO 3.5MM SMD R/ASJ-3523-SMT-TRCONN JACK STEREO 3.5MM SMD R/A107199 - Inmediata$0.88Ver detalles
RES 20 OHM 1% 1/8W 0603RNCP0603FTD20R0RES 20 OHM 1% 1/8W 060319343 - Inmediata$0.10Ver detalles
BREADBOARD GENERAL PURPOSE PTHDKS-SOLDERBREAD-01BREADBOARD GENERAL PURPOSE PTH435 - Inmediata$2.49Ver detalles