目的：
示範如何用 TPD-280-W 來讀取 PM-2133 (智慧電表) 模組的電壓、電流、功率、功率因子等值。

Goal:
Demonstrate how to use TPD-280-W to use PM-2133 (compact smart meter) PM-2133 module's to get values of voltage, current, power and power factor.


