AC Power Router Controller

Overview

AC Power Router Controller is an all-in-one development board based on the ESP32 microcontroller (WROOM/WROVER) designed for building AC dimmer and relay control systems. Perfect for makers, hobbyists, and DIY enthusiasts who want to quickly spin up smart home projects, industrial automation, or power monitoring setups without the hassle of breadboarding everything from scratch.

What's On Board

Load Control

• Hook up to 2 AC dimmers (standard or with built-in current sensors)
• Connect up to 2 relay modules for on/off switching of non-dimmable loads

Power Monitoring

• Onboard ZMPT107 voltage sensor with screw terminal for AC mains connection
• 2× 3.5mm JACK sockets for SCT-013 current transformers
• Calculate real-time power consumption on the fly
• Set up current limits and overload protection

Feedback & Alerts

• 2 LEDs for status indication — show what's going on in your project
• Piezo buzzer for audio alerts and warnings

Power Supply

• Onboard 3.3V voltage regulator
• MicroUSB socket and pinheader for external 5V power input

Hackability

• All ESP32 GPIOs broken out to pin headers
• Easy to expand with additional sensors and modules

Pinout

Connectors

• Screw Terminal — AC voltage sensor input
• 2× 3.5mm JACK — SCT-013 current clamps
• 2× Pin Header (GND, VCC5V, RL) — relay modules
• 2× Pin Header (VCC3.3V, GND, ZC, DIM) — AC dimmers
• Power pins — 5V external supply

What Can You Build?

• Smart home lighting with smooth dimming
• Heater or heating element control
• DIY energy monitor with power consumption tracking
• Load limiter with overload alerts
• Cost calculator for electricity usage
• Any ESP32-based IoT project that needs AC control

Why This Board?

Stop messing around with jumper wires and sketchy breadboard setups for mains voltage. The AC Power Router Controller gives you a solid foundation to build your AC dimming projects safely and quickly. Just plug in your dimmers, hook up current sensors if you need power monitoring, flash your code, and you're good to go.