Control Any AC Load
the Smart Way
Dim lights, regulate heat, control fans and pumps — flicker-free, with real hardware timers.
ESP32 · Arduino · ESPHome · Home Assistant · Tasmota · Raspberry Pi
Lighting
Smooth dimming for any AC bulb — LED, halogen, incandescent
Heating
Heaters, boilers, underfloor heating — smooth power regulation
Fans & Ventilation
Variable speed control for AC fans and ventilation systems
Pumps & Flow
Water circulation pumps, flow regulators, pool systems
10K+
Units shipped
6+
Platforms supported
Zero
Cross detection built-in
0 Hz
Flicker at any brightness
Find Dimmer
Get started in 3 easy steps
Choose Dimmer
Pick the right module for your load and platform
Connect Hardware
Follow the wiring diagram for your setup
Upload Code
Use our open-source library or plain UART/I2C
Compatible with major DIY platforms
ESPHome · Home Assistant · Tasmota · MQTT · Arduino · Raspberry Pi · MicroPython
Integration Guides
Ready-made recipes for your platform
Comprehensive Documentation
Hardware module
DimmerLink — UART/I2C dimmer controller
Need flicker-free dimming without writing interrupt code? DimmerLink handles all critical AC timings on a dedicated Cortex-M+ — you just send 3-byte commands.
- No libraries required — UART or I2C, any language, 5 lines of code
- Universal — Arduino, ESP32, Raspberry Pi, STM32, 1.8 V–5 V logic
- Flicker-free — dedicated hardware timer, no software delays
Latest News
New modules, firmware updates, announcements
Dimmer's FAQ
Find your solution
Worldwide Shipping
Fast & Reliable!
We ship globally from our warehouses in France and China.
Choose the nearest warehouse for faster delivery and lower shipping costs!
✔ Secure & tracked shipping
✔ Multiple delivery options
✔ Fast dispatch from regional warehouses
RBgrid — Energy monitoring
Enjoy effortless local monitoring with the FREE RBgrid app for ESP32. Gain complete insight into your home's energy consumption. Track real-time usage, monitor trends, and stay informed to make smarter, more energy-efficient decisions.
Visit RBgrid.io