EVN Data Fetcher

EVN Data Fetcher is a custom integration that reads electricity usage data from EVN Vietnam. It adds sensors to Home Assistant for the latest daily usage, the previous day, and the current month's usage so far. Other sensors cover an estimated cost, unpaid bill status and amount, the latest and earlier meter readings, and the data update date. Several customer codes can be tracked at once on the same server, and the EVN server is detected automatically. It works only with remote-read electronic meters that record daily, and an EVN account is required, so it relies on the vendor's cloud. Setup is done in the UI with a username, password, customer code and billing start date, and cost sensors are rough references that refresh on a fixed cycle.