SmartPlug with POW (AISIRER, AVATAR) - stodev-com-br/Tasmota GitHub Wiki

Smart Plugs from Amazon with same internal parts:

Device:

  • solid design with 16A Relays
  • 8 MB memory chip
  • 2 LEDs
  • POW function (unfortunately did not test yet, need help)
  • very small size, easy to disassemble
  • no need to disassemble PCBs
  • test mode works with 5 or 3.3 V (relays also works)

Disassemble

  • take off the lead with 2 screws
  • put small cross screwdriver inside 220V plug connector, there are 2 screws
  • free the antenna from plastic (no need to disconnect)
  • pull of PCB from the case

Important build flags.

  • in Platformio for Tasmota flag change from 1MB to 8MB is needed, otherwise flash fails. build_flags = ${esp82xx_defaults.build_flags} -Wl,-Teagle.flash.8m.ld
  • in Arduino IDE: board selected - "Node MCU 1.0", standard

Found how some of PINS are linked to main PCB and are easy to connect for flashing

PCB

Flashing:

I've decided to use 5V - there is a painted pad on the PCB, clean it and attach 5V (see image)

  • Connect GPIO0 to GND
  • Connect RX, TX
  • Connect 5V and GND
  • Connect USB to PC, start flashing

Tasmota WEB config (Generic)

  • GPIO0 - Led1i
  • GPIO2 - Led2i
  • GPIO5 - HLW8012 CF
  • GPIO12 - HLWBLSELi
  • GPIO13 - Button1
  • GPIO14 - HLWBL CF1
  • GPIO15- Relais1

webconfig

IMPORTANT: in order to have an accurate measurement of Voltage/Current/Power, you have to calibrate the internal meter with a well know load (like lamp or hair dryer) using this detailed procedure.

Update from my side

I managed to flash two Aisirer plugs using pre-compiled tasmota.binaries, since my plugs had only 1M flash. I used 3.3V connected directly to the ESP board. I had some trouble with WLAN connectivity which caused the relays to pulse, so I switched to 2.3.0 core, which seems default again since a few releases. This runs quite well. Configure as BlitzWolf SHP(45) Module and also the power measurement is working.

Update from nos86

I have updated the guide in order to interface Tasmota with the power meter inside smart plug (tested only on AISIRER) and added the link for the power monitoring calibration