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Emporia Power Monitoring Plug
US
Model reference: EMS01
Emporia

Available from:
Amazon.com




Manufacturer:
Emporiaenergy.com

Install method:
USB to Serial

GPIO #Component
GPIO00 None
GPIO01 None
GPIO02 None
GPIO03 Led 2
GPIO04 Relay 1
GPIO05 BL0937 CF
GPIO09 None
GPIO10 None
GPIO12 HLWBL SELi
GPIO13 Button 1
GPIO14 HLWBL CF1
GPIO15 Led 1
GPIO16 None
GPIO17 None
Configuration
{"NAME":"Emporia EMS01","GPIO":[0,0,0,289,224,2720,0,0,2624,32,2656,288,0,0],"FLAG":0,"BASE":18}
For more accurate energy consumption measurements this device requires power monitoring calibration.

Device design is similar to Aoycocr Power Monitoring Plug X10S. Opened the unit by separating glued together plastic parts of the shell, then soldered 5 wires to the following points:

  1. Main PCB U2 pin 1 (ground)
  2. Main PCB U2 pin 2 (+3.3V)
  3. Main PCB LED1 anode, closest to D1 (RXD)
  4. Daughterboard U2 pin 26 (TXD)
  5. Daughterboard U2 pin 15 (GPIO0)

Connected power and serial lines, grounded GPIO0, and was able to read the flash and program tasmota.bin.