{
  "id": "calex/429228",
  "vendor": "Calex",
  "model": "429228",
  "aliases": [
    "Calex 4AC 2USB",
    "Calex 4AC 4USB"
  ],
  "category": "smart-plug",
  "identifiers": {
    "chips": [
      "ESP8266",
      "TYWE2S",
      "WB3S"
    ]
  },
  "status": "open-firmware",
  "projects": [
    {
      "name": "Tasmota",
      "url": "https://templates.blakadder.com/calex_429228.html",
      "kind": "firmware",
      "license": "GPL-3.0"
    },
    {
      "name": "Tasmota",
      "url": "https://templates.blakadder.com/calex_429228_uk.html",
      "kind": "firmware",
      "license": "GPL-3.0"
    }
  ],
  "install": [
    {
      "project": "Tasmota",
      "guide": "https://templates.blakadder.com/calex_429228.html",
      "method": "ota-exploit",
      "installer": "https://github.com/ct-Open-Source/tuya-convert",
      "difficulty": "medium",
      "tools": [
        "Linux computer with Wi-Fi (e.g. Raspberry Pi)"
      ],
      "opens_device": false,
      "brick_risk": "low",
      "reversible": "partial",
      "firmware_constraints": "tuya-convert only works on Tuya firmware released before its 2020 patch; patched devices must be flashed over serial."
    },
    {
      "project": "Tasmota",
      "guide": "https://templates.blakadder.com/calex_429228_uk.html",
      "difficulty": "hard",
      "opens_device": true,
      "mains_powered": true,
      "notes": "Mains-powered: unplug before opening; for experienced users only. The stock Wi-Fi module is not ESP-based: it must be desoldered and replaced with an ESP module before flashing.",
      "method": "other",
      "tools": [
        "Soldering iron",
        "Replacement ESP module (e.g. ESP-12F)"
      ],
      "brick_risk": "medium",
      "reversible": "partial"
    }
  ],
  "provenance": {
    "sources": [
      "tasmota"
    ]
  },
  "updated": "2026-10-17"
}