AC Dimmer Module 4A for Arduino ESP32 – Compact TRIAC Dimmer 400V 4A, 3.3V/5V Logic, Phase Control for Lights Fans Small Appliances – DIY Smart Home Automation Module
AC Dimmer Module 4A for Arduino ESP32 – Compact TRIAC Dimmer 400V 4A, 3.3V/5V Logic, Phase Control for Lights Fans Small Appliances – DIY Smart Home Automation Module
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About This
- COMPACT LOW-POWER AC DIMMING – Control AC loads up to 4A at 400V with smooth phase-angle regulation. Perfect for dimmable incandescent lights, small fans, pumps, air purifiers, and low-power heating elements. True voltage control, not just on/off switching.
- ULTRA-COMPACT DESIGN – Tiny footprint (60 × 20 × 20 mm) fits easily into small enclosures and tight spaces. Ideal for DIY smart switches, lamp controllers, and space-constrained automation projects where larger modules won't fit.
- ARDUINO & ESP32 COMPATIBLE – Supports 3.3V, 5V, and 12V logic levels for universal microcontroller compatibility. Works with Arduino, ESP32, ESP8266, STM32, Raspberry Pi, and more. Ready-to-use rbdimmerESP32 library simplifies coding with example projects.
- SMART HOME INTEGRATION – Direct compatibility with ESPHome for Home Assistant, Tasmota firmware, and custom automation platforms. Build voice-controlled lighting, scheduled operations, and energy-saving routines through your preferred smart home ecosystem.
- SAFE OPTOCOUPLER ISOLATION – Complete electrical separation between high-voltage AC and low-voltage control circuit protects your microcontroller. Zero-cross detection output enables precise timing synchronization for flicker-free dimming.
Overview
- Operation Mode : ON-ON-ON
- Current Rating : 4 Amps
- Operating Voltage : 120 Volts
- Contact Type : Normally Closed
- Connector Type : Clamp
- Brand : Generic
- Switch Type : TRIAC
- Terminal : Screw
- Material : PCB
- Item dimensions L x W x H : 1.97 x 0.63 x 0.39 inches
WE MAKE SMART LIVING SIMPLE.
OUR TEAM HELPS SECURE YOUR HOME.
SmartHomeValueHub helps homeowners create safer, smarter, and more convenient living spaces with trusted smart home solutions built for everyday life.
From smart security cameras and smart locks to video doorbells, thermostats, lighting, and home automation essentials — we focus on products that improve real comfort, safety, and efficiency.
Our goal is simple: better protection, lower energy costs, and smarter daily living for every home.
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✔ Easy Setup
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SMART HOME FAQ
Yes — many modern devices support multiple platforms.
Matter-certified devices can work across Alexa, Google Home, and Apple HomeKit at the same time.
Not always.
Smart bulbs, plugs, cameras, and video doorbells are often easy DIY installations, while full security systems may need professional setup.
Many devices still work manually or through local control.
You may lose remote app access, but locks, lights, and thermostats often continue basic functions.
Security depends on the device and setup.
Use strong passwords, trusted brands, firmware updates, and secure Wi-Fi for better protection. Privacy and unauthorized access are common concerns in smart homes.
Most homeowners start with:
Smart Security Cameras
Smart Door Locks
Smart Thermostats
Smart Plugs
Video Doorbells
Yes.
Smart thermostats and smart plugs help reduce wasted energy by automating heating, cooling, and power usage.
It depends on your ecosystem.
Alexa → widest compatibility
Google Home → strong for Android users
Apple HomeKit → best privacy
Home Assistant → advanced control
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