Smart Plug (BR): Works only in 220v?!

jmceara · January 30, 2021, 6:29pm

Hi!
I’m from Brazil and I just brought an smart plug called ‘eKaza’. It works with Smart Life and uses TYWE2S + BL0937 chip…so I managed to install Tasmota and it’s working perfectly with this template:

{"NAME":"NX-SM400","GPIO":[0,0,0,32,2720,2656,0,0,2624,288,224,0,0,0],"FLAG":0,"BASE":18}

Now, I’m trying to make it work with ESPHome, since I’m trying to migrate all my devices to ESPHome.
I’m trying first the basic: relay and button. I have this configuration right now:

substitutions:
  name: 'sp_mlavar'
  ssid1: 'Skynet_dvcs'
  ssid2: 'Skynet'


esphome:
  name: sp_maquina_lavar
  platform: ESP8266
  board: esp8285

wifi:
  networks:
  - ssid: $ssid2
    password: !secret wifi_skynet_pwd
  - ssid: $ssid1
    password: !secret wifi_dvcs_pwd
    
  manual_ip:
    static_ip: 192.168.22.60
    gateway: 192.168.22.1
    subnet: 255.255.255.0    

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "sp_maquina_lavar Fallback"
    password: "Z7Aw17U0Kh1d"

captive_portal:

# Enable logging
logger:

# Enable Home Assistant API
api:

ota:

web_server:
  port: 80
  auth:
    username: jmaurin
    password: !secret web_server_pwd



binary_sensor:
  - platform: gpio
    pin:
      number: GPIO3
      mode: INPUT_PULLUP
      inverted: true
    name: "Power Button"
    on_press:
      - switch.toggle: relay

  - platform: status
    name: "Status"
    
switch:
  - platform: gpio
    id: blue_led
    pin:
      number: GPIO13
      inverted: true

  - platform: gpio
    name: "Socket Monitoring Switch"
    pin:
      number: GPIO14
   #   inverted: true
    id: relay

The problem is that with Tasmota, everything works fine with both 110v and 220v…but with ESPHome, only works with 220v! I can’t make it work in 110v.
When I plug into 110v socket, the smarty plug turns on and connect to my AP…I can ping, access web interface, etc etc…but when I press the button to turn relay on/off, it just turn relay on for less than 1 second and reboot entire system (stop ping). Relay doesn’t stay on, just a fast ‘click’ and go back to off, then system restart.
The most bizare thing is that this only happens in 110v with ESPHome.
That am I missing?

Tasmota firmware:
110v = Works
220v = Works

ESPHome firmware:
110v = Reboot after button click (or turn switch on using API/ HA, reboot too)
220v = Works

Some pictures of device: