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)