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BlitzWolf SHP2

The BlitzWolf BW-SHP2, HomeCube SP1, and Teckin SP22 are basically the same device barring the branding.

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September 2019 - Recent versions of the Teckin SP22 have been redesigned with a Tuya WR2 Wi-Fi module based on the Realtek RTL8710BN. Since these are not ESP82xx based, Tasmota will not function on this newer version of the device.
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Product Page: - BlitzWolf BW-SHP2 - Gosund-SP1

OTA install~

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October 2019 - As far as the newer firmware versions and shipments are delivered, the devices possibly won't work with this method. Try it at your own discretion.
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Since SHP2 is one of those Tuya based devices this OTA Tasmota installation method works just fine: https://github.com/ct-Open-Source/tuya-convert

The Tuya-convert has a built in Tasmota v6.5.0 basic(but you can define any firmware during the install), remember, that basic version doesn't come with homeassistant auto discovery support, but Tasmota OTA works as expected.

This method does't need any wiring.

Serial Connection~

Please see the Hardware Preparation page for general instructions.

Step 1.~

Be sure it is NOT plugged in! Remove the 4 triangle screws. Triangular 2.3mm Screwdriver required (a Torx T6 works well too)! Triangle screws

Step 2.~

Solder cables to the ESP Pins ESP Pins soldered cables

Step 3.~

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For version 2.3 and 2.4, see: devices/Gosund-SP1 shortwire during startup.
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Connect serial adapter and make a shortwire between Pin IO0 and GND during startup. (For entering flashmode) RX and TX must be crossed. shortwire during startup

Step 4.~

Flash Tasmota

OpenHab configuration~

sonoff.items:

Switch BlitzwoIFSHP2 "Switch"  { mqtt=">[broker:cmnd/BlitzwoIFSHP2/POWER:command:*:default],<[broker:stat/BlitzwoIFSHP2/POWER:state:default]" }
Number Power_Total "Total: [%.3f kWh]"  { mqtt="<[broker:tele/BlitzwoIFSHP2/SENSOR:state:JSONPATH($.ENERGY.Total)]" }
Number Power_Today "Today: [%.3f kWh]"  { mqtt="<[broker:tele/BlitzwoIFSHP2/SENSOR:state:JSONPATH($.ENERGY.Today)]" }
Number Power_Yesterday "Yesterday: [%.3f kWh]"  { mqtt="<[broker:tele/BlitzwoIFSHP2/SENSOR:state:JSONPATH($.ENERGY.Yesterday)]" }
Number Power "Power: [%.1f Watt]"  { mqtt="<[broker:tele/BlitzwoIFSHP2/SENSOR:state:JSONPATH($.ENERGY.Power)]" }
Number Voltage "Voltage: [%.0f V]"  { mqtt="<[broker:tele/BlitzwoIFSHP2/SENSOR:state:JSONPATH($.ENERGY.Voltage)]" }
Number Current "Current: [%.3f A]"  { mqtt="<[broker:tele/BlitzwoIFSHP2/SENSOR:state:JSONPATH($.ENERGY.Current)]" }
Number Factor "Factor: [%.2f]"  { mqtt="<[broker:tele/BlitzwoIFSHP2/SENSOR:state:JSONPATH($.ENERGY.Factor)]" }

default.sitemap:

Switch item=BlitzwoIFSHP2 label="BlitzWoIF SHP2" icon="socket" mappings=[OFF="Off",ON="On"]     
Text item=Power label="Power: [%.1f Watt]" icon="energy"
Text item=Voltage label="Voltage: [%.0f V]" icon="energy"
Text item=Current label="Current: [%.3f A]" icon="energy"
Text item=Factor label="Factor: [%.2f]" icon="energy"
Text item=Power_Total label="Power Total: [%.3f kWh]" icon="energy"
Text item=Power_Today label="Power Today: [%.3f kWh]" icon="energy"
Text item=Power_Yesterday label="Power Yesterday: [%.3f kWh]" icon="energy"

Home Assistant configuration~

configuration.yaml

switch:
  - platform: mqtt
    name: "Blitzwolf"
    state_topic: "stat/blitzwolf/POWER"
    command_topic: "cmnd/blitzwolf/POWER"
    payload_on: "ON"
    payload_off: "OFF"
    retain: false

sensor:
  - platform: mqtt
    name: "Blitzwolf Energy Today"
    state_topic: "tele/blitzwolf/SENSOR"
    value_template: '{{ value_json["ENERGY"]["Today"] }}'
    unit_of_measurement: "kWh"
  - platform: mqtt
    name: "Blitzwolf Energy Yesterday"
    state_topic: "tele/blitzwolf/SENSOR"
    value_template: '{{ value_json["ENERGY"]["Yesterday"] }}'
    unit_of_measurement: "kWh"
  - platform: mqtt
    name: "Blitzwolf Energy Total"
    state_topic: "tele/blitzwolf/SENSOR"
    value_template: '{{ value_json["ENERGY"]["Total"] }}'
    unit_of_measurement: "kWh"
  - platform: mqtt
    name: "Blitzwolf Power"
    state_topic: "tele/blitzwolf/SENSOR"
    value_template: '{{ value_json["ENERGY"]["Power"] }}'
    unit_of_measurement: "W"
  - platform: mqtt
    name: "Blitzwolf Voltage"
    state_topic: "tele/blitzwolf/SENSOR"
    value_template: '{{ value_json["ENERGY"]["Voltage"] }}'
    unit_of_measurement: "V"
  - platform: mqtt
    name: "Blitzwolf Power Factor"
    state_topic: "tele/blitzwolf/SENSOR"
    value_template: '{{ value_json["ENERGY"]["Factor"] }}'

Attention~

There is a newer hardware revision (v2.3) which is supported too. Use latest release. See also devices/Gosund-SP1