ESP32-C3 EU Smart Plug 16A with ESPHome, Home Assistant, Bluetooth Proxy and Energy Monitoring
 
Local Smart Control for Everyday Appliances
Upgrade ordinary household appliances with local smart control and real-time energy monitoring.
This EU smart plug is designed for Home Assistant and ESPHome users. It features an ESP32-C3 chip, pre-installed ESPHome firmware, built-in Bluetooth proxy support, a calibration-free HLW8032 energy monitoring chip and a high-quality 16A relay.
No mandatory cloud service is required. Control your appliances, monitor electricity consumption and create powerful automations directly through your local smart home system.
 
Main Features
ESP32-C3 processor
ESPHome firmware pre-installed
Native Home Assistant integration
Local control without a mandatory cloud account
Built-in ESPHome Bluetooth proxy
Calibration-free HLW8032 energy monitoring chip
No manual energy calibration required
Real-time voltage, current and power monitoring
Total energy consumption measurement
High-quality 16A relay
Physical on/off button
LED status indicator
2.4GHz Wi-Fi
Bluetooth Low Energy
ESPHome OTA firmware updates
Standard EU plug and socket
 
Easy Home Assistant Integration
Connect the smart plug to your 2.4GHz Wi-Fi network and add it to Home Assistant through the ESPHome integration.
You can then:
Turn appliances on or off remotely
Create schedules and timers
Build custom automations
Monitor real-time power consumption
Track long-term energy usage
Automatically switch off standby devices
Receive notifications based on appliance status
Control everything from your Home Assistant dashboard
 
Built-In Bluetooth Proxy
The integrated ESPHome Bluetooth proxy extends Bluetooth Low Energy coverage for Home Assistant.
It can help Home Assistant receive data from supported nearby BLE devices, including:
Temperature and humidity sensors
Door and window sensors
Plant sensors
Bluetooth beacons
Other compatible BLE devices
One compact device works as a smart switch, energy meter and Bluetooth proxy.
 
Calibration-Free Energy Monitoring
The built-in HLW8032 chip provides ready-to-use energy monitoring without requiring manual calibration during normal setup.
Available measurements include:
Voltage
Current
Active power
Total energy consumption
Use this data to create energy dashboards, analyze appliance usage or trigger automations based on actual power consumption.
For example, Home Assistant can send a notification when a washing machine’s power drops below a selected level, indicating that the washing cycle has finished.
 
High-Quality 16A Relay
The high-quality 16A relay provides reliable switching for a wide range of compatible household appliances, such as:
Lamps
Fans
Coffee machines
Televisions
Computers
Air purifiers
Dehumidifiers
Washing machines
Dishwashers
Chargers
Other compatible electrical appliances
 
Open and Customizable
ESPHome gives advanced users full control over the device configuration.
You can:
Customize button and LED behavior
Adjust energy sensor update intervals
Add local safety automations
Modify device functions
Install firmware updates wirelessly
Integrate the plug into advanced Home Assistant projects
The plug arrives with ESPHome firmware already installed for a faster and easier setup.
 
Technical Specifications
Specification
Details
Product Type
EU Smart Plug
Main Chip
ESP32-C3
Input Voltage
AC 100-250V
Smart Home Integration
Home Assistant via ESPHome
Wi-Fi
2.4GHz
Bluetooth
Bluetooth Low Energy
Bluetooth Function
ESPHome Bluetooth Proxy
Energy Monitoring Chip
Calibration-free HLW8032
Electrical Measurements
Voltage, current, active power and total energy consumption
Relay Rating
Up to 16A
Control Methods
Home Assistant, ESPHome and physical button
Cloud Account
Not required for local operation
Certifications
FCC / CE / RoHS
Package Includes
1 x ESP32-C3 EU Smart Plug
1 x Product Manual
 
Important Notes
A 2.4GHz Wi-Fi network is required.
Initial Wi-Fi configuration is required before use.
Advanced customization requires basic ESPHome knowledge.
Minor measurement differences may occur depending on the appliance and operating conditions.
The 16A value is the relay’s maximum rating. The actual safe load depends on appliance type, inrush current, operating temperature and local electrical regulations.
Use an appropriate safety margin for high-power, inductive, motor-driven or continuously operating loads.
 
GPIOs:
GPIO#        Component
GPIO20      CSE7766 Rx
GPIO3         Button
GPIO5         Relay
GPIO6         Led
 
Product Highlights
ESP32-C3 EU Plug Made For ESPHome is a local smart plug made for ESPHome and Home Assistant. It is suitable for appliance control, scheduling, and Home Assistant automations.
Ideal For
Appliance control
Power monitoring where supported
Schedules and Home Assistant automations
Compatibility
Designed for local smart home use with Home Assistant. Products marked as Made For ESPHome use the correct Made For ESPHome compatibility wording and are intended for ESPHome-based local control.