HIKING Smart Meter
Model: DDS238-2 WIFI

Alteration under the nRF52 BT Mesh.

DDS238-2 WIFI based on TUYA TYWE3S. MCU supported following DPID
      1 - switch
      9 - countdown
     18 - current (in milli A)
     19 - power (in deci W)
     20 - voltage (in deci V)
    101 - increased power usage (in deci kWh)


Query the Device Initialization Status command results:

version=03, cmd=0x07, size=5, data=01 01 00 01 00
dpid=1 (switch), type=1 (boolean), len=1, value=0

version=03, cmd=0x07, size=8, data=09 02 00 04 00 00 00 00
dpid=9 (countdown), type=2 (int), len=4, value=0

version=03, cmd=0x07, size=8, data=65 02 00 04 00 00 00 11
dpid=101 (power usage), type=2 (int), len=4, value=17 (1.7kWh)

version=03, cmd=0x07, size=8, data=12 02 00 04 00 00 00 00
dpid=18 (current), type=2 (int), len=4, value=0 (0mA)

version=03, cmd=0x07, size=8, data=13 02 00 04 00 00 00 00
dpid=19 (power), type=2 (int), len=4, value=0 (0.0W)

version=03, cmd=0x07, size=8
14 02 00 04 00 00 08 ba - (20) energy metering
dpid=20 (voltage), type=2 (int), len=4, value=2234 (223.4V)