A truly smart relay module, offering sink and source capabilty (select per channel by jumper) for 4 opto-insulated inputs, I2C interface with address selection to connect up to 8 modules to the same I2C bus, and socket for WEMOS D1 mini WiFi IoT module.
This module comes in the size of a credit card, with just 80 x 55 mm footprint.
This DIY soldering kit offers an incredible cheap opportunity to wirelessly control 4 load circuits (up to 250VAC, 5A) from a browser interface or smart phone app – the limit is your imagination and programming skills.
The (included) D1 mini WiFi module with ESP8266 can easily be programmed using Arduino IDE, and smart phone or browser apps can be developed with free and available tools like Blynk.
Turn your lights on and off, open and close your garage door, remote start your whirlpool heater and circulation pump. What ever project comes to your mind.
CANADUINO Smarter Relays 4.2 is a Do-It-Yourself kit comprising only through-hole parts and is easy to build using basic electronic tools.
Power (5V, 500mA) can be supplied through 5V header pin or USB in case the D1 mini is installed.