Hello everyone.
I am using an HIKING TOMZN DDS238-1 Wifi ampermetric smart meter and I am trying to get it to work properly with Home Assistant, specifically to monitor the Amperage for Phase A and Phase B.
I have tried using both the official Tuya integration and the HACS Local Tuya integration, but the data displayed are completely wrong in both cases, It looks like they can't really understand the RAW Base64 or Hexadecimal data coming from this device.
I precise that the values appear perfectly in the SmartLife app.
I also tried the cloud-based HACS Tuya Sensors integration. This approach works, providing me with the raw hexadecimal value. I then apply a template filter to obtain the correct values. Unfortunately, with a 30-second refresh rate, I exhaust the free Tuya IoT Core monthly quota in just a few days, and the only paid tier available is $25,000 a year, which is obviously impossible for a personal home setup.
I am reaching out to see if anyone has encountered this issue and found a workaround to correctly decode these values in Home Assistant without hitting the cloud API limits.
Any ideas or guidance would be greatly appreciated.
Thank you!