OpenDeviceDB

Devices / smart-plug

Arlec PC191HA

Also known as Arlec PC191HA Smart Plug BK7231N, Arlec PC191HA Smart Plug BK7231T, Arlec Plug In Socket

Open firmwareImported

A free replacement firmware exists.

Advanced energy monitoring smartplug, controlled locally over the Tuya protocol by tuya-local (stock firmware, no cloud).

Get started

3 known ways to put open firmware or software on this device, easiest first. Each one links to the project's own instructions.

Before you start
  • Back up your data and settings (and the stock firmware, when the guide says how).
  • Check the exact model, hardware revision and firmware version against the guide: a close model may not work.
  • Charge the battery or use a stable power supply; do not unplug during the install.

Use tuya-local (nothing is flashed)

Medium

Needs a cable or the command line · tuya-local

You need
Home Assistant (tuya-local is installed through HACS), Tuya / Smart Life app account (to get the device's local key)
Device opened
No
Brick risk
None
Reversible
Yes

No flashing: set the device up in the Tuya or Smart Life app first; tuya-local then controls it on your network with its device id and local key. Re-pairing in the app changes the local key.

No install report yet. · Report how it went

Follow the official guide

Flash over the air with tuya-cloudcutter

Medium

Needs a cable or the command line · tuya-cloudcutter

You need
Linux computer (not a VM) with Docker, Spare Wi-Fi adapter that supports AP mode
Device opened
No
Firmware
Works only with the Tuya firmware cloudcutter lists for this device: 1.1.8 (SDK 2.3.1-40.00), 1.3.5 (SDK 1.0.2-40.00). Check the "Main Module" version in the Tuya or Smart Life app and do not update the device first. Firmware built on Tuya's patched SDK (from February 2022) cannot be flashed over the air: serial flashing is the alternative.

Command line. The device can no longer use the Tuya apps or cloud afterwards.

No install report yet. · Report how it went

Open the official installerRead the guide first

Install Tasmota

Hard

Opening, soldering or a programmer · Tasmota

Mains voltage. This device runs on mains power and must be opened: never open it while it is plugged in. For experienced users only.

You need
Soldering iron, Replacement ESP module (e.g. ESP-12F)
Device opened
Yes
Brick risk
Medium
Reversible
Partly

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.

No install report yet. · Report how it went

Official guide

OpenDeviceDB links to each project's own instructions and tools; nothing is flashed from this site. Flashing is at your own risk and may void the warranty.

ID
arlec/pc191ha
Category
smart-plug
Vendor support
Unknown
chips
BK7231N, CB2S, BK7231T, WB2S, ESP8266
sku
tuya:auojpnb4hpc13ftb
Updated
2026-10-17
Curate this record on GitHubJSONClaim this device

Being worked on

No live claim. If you start working on this device, claim it so nobody duplicates your work.

Interfaces

No interface documented yet.

Projects

ProjectKindOriginLicense
tuya-cloudcuttertoolcommunityMIT
tuya-cloudcuttertoolcommunityMIT
TasmotafirmwarecommunityGPL-3.0
tuya-localintegrationcommunityMIT

Verification

Not verified. A "verified on hardware" badge requires a replayable test (hardware-replay) run on a real device with a stated firmware version.

Provenance

AI assistance not stated.

Status and claims as of the build date (2026-10-18). Data licensed CC BY-SA 4.0; imported data keeps its upstream license.