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Flash firmware

How it works

On this page you can reflash or update our products to the latest factory firmware using ESP Web Tools — directly in your browser. Requirements: Google Chrome or Microsoft Edge over HTTPS.

  1. 1
    Connect your smarthomeshop.io product to your computer via USB. Use a USB‑C cable that supports data (not power‑only).
  2. 2
    Select your product and the correct firmware variant below.
  3. 3
    Click Connect and follow the browser prompts to flash the firmware.
  4. 4
    After flashing, configure Wi‑Fi using Improv (if supported) or via access point.
  5. 5
    If the device is not detected, install the CP210x USB‑to‑UART driver: Windows · macOS.
Important — Factory reset

Flashing from this page writes the factory firmware image to your device. All current settings, Wi‑Fi credentials, and local configurations on the device will be erased. Make sure you have any required credentials at hand to reconfigure after flashing.

Which hardware version do I have?

Not sure which hardware version you have? You can check this in the sensors of your product in Home Assistant (look for "Hardware Version" or "Product Version"). Or contact us via support.smarthomeshop.io using the email address you used when placing your order.

Need help?

Join our Discord server for live chat support from our team and community.

Join Discord

Step 1. Select a product

CeilSense

In-ceiling mmWave presence sensor

Basic — Wi‑Fi
ESPHome, Wi‑Fi

Factory image for CeilSense (Basic, Wi‑Fi).

Basic — Wi‑Fi + LD2412
ESPHome, Wi‑Fi

Factory image for CeilSense (Basic, Wi‑Fi) with LD2412.

Basic — Ethernet
ESPHome, Ethernet

Factory image for CeilSense (Basic, Ethernet).

Basic — Ethernet + LD2412
ESPHome, Ethernet

Factory image for CeilSense (Basic, Ethernet) with LD2412.

Complete — Wi‑Fi
ESPHome, Wi‑Fi

Factory image for CeilSense (Complete, Wi‑Fi).

Complete — Wi‑Fi + LD2412
ESPHome, Wi‑Fi

Factory image for CeilSense (Complete, Wi‑Fi) with LD2412.

Complete — Ethernet
ESPHome, Ethernet

Factory image for CeilSense (Complete, Ethernet).

Complete — Ethernet + LD2412
ESPHome, Ethernet

Factory image for CeilSense (Complete, Ethernet) with LD2412.

UltimateSensor Mini

Air quality and presence

Basic
ESPHome, Wi‑Fi

Factory image for UltimateSensor Mini (Basic, without SPS30).

Complete
ESPHome, Wi‑Fi

Factory image for UltimateSensor Mini (Complete, includes SPS30 particulate sensor).

UltimateSensor

Comprehensive environmental monitoring

Basic — Wi‑Fi
ESPHome, Wi‑Fi

Factory image for UltimateSensor (Basic, Wi‑Fi) — without PM dust sensor.

Complete — Wi‑Fi
ESPHome, Wi‑Fi

Factory image for UltimateSensor (Complete, Wi‑Fi) — includes PM dust sensor.

Basic — Ethernet
ESPHome, Ethernet

Factory image for UltimateSensor (Basic, Ethernet) — without PM dust sensor.

Complete — Ethernet
ESPHome, Ethernet

Factory image for UltimateSensor (Complete, Ethernet) — includes PM dust sensor.

P1MeterKit

Energy monitoring via P1 port

Step 2. Select hardware version

Step 3. Select connectivity

Wi‑Fi
ESPHome, Wi‑Fi

Factory image for P1MeterKit V1 (Wi‑Fi, ESP8266).

Step 3. Select connectivity

Wi‑Fi
ESPHome, Wi‑Fi

Factory image for P1MeterKit V2 (Wi‑Fi, ESP32-C3).

WaterMeterKit

Water consumption monitoring

Step 2. Select hardware version

Step 3. Select connectivity

Wi‑Fi
ESPHome, Wi‑Fi

Factory image for WaterMeterKit V1 (Wi‑Fi).

WaterFlowKit

Water flow and temperature monitoring

Step 2. Select hardware version

Step 3. Select connectivity

Wi‑Fi
ESPHome, Wi‑Fi

Factory image for WaterFlowKit V1 (Wi‑Fi).

WaterP1MeterKit

Water and energy monitoring

Step 2. Select hardware version

Step 3. Select connectivity

Wi‑Fi
ESPHome, Wi‑Fi

Factory image for WaterP1MeterKit V1 (Wi‑Fi).

Ethernet
ESPHome, Ethernet

Factory image for WaterP1MeterKit V1 (Ethernet).

Step 3. Select connectivity

Wi‑Fi
ESPHome, Wi‑Fi

Factory image for WaterP1MeterKit V2 (Wi‑Fi).

Ethernet
ESPHome, Ethernet

Factory image for WaterP1MeterKit V2 (Ethernet).

Step 3. Select connectivity

Wi‑Fi
ESPHome, Wi‑Fi

Factory image for WaterP1MeterKit V3 (Wi‑Fi).

Ethernet
ESPHome, Ethernet

Factory image for WaterP1MeterKit V3 (Ethernet).