I am really new to Arduino and would like to seek advises before committing myself to one.
Using Arduino, I would like to flip the switch to power up my espresso machine (warm up time a bitch) using Arduino + mobile app and also to start other home automation projects.
I'm looking at a Arduino> switchboard > relays to control 3-pin appliances
Arduino will be controlled via mobile app/ web interface hosted within local network
Im on 230V main and I'm not too sure on the exact peripherals and setup that I may need.
can a normal relay able to sustain the huge amperage the espresso machine may draw(1500W heating element)
is it possible to use Arduino to control relay wirelessly? Meaning 1 Arduino interface with maybe 2-3 wireless relay situated in different part of the house (1 x coffee machine, 2 x Air condition unit)
It's possible but you will need to know or learn a good number of things you don't seem to.
In the different sections of the forum are threads discussing ALL of those. Have you browsed for interesting threads on any of those?
The Exhibition Hall part of the forum presents completed projects open to examination.
The Arduino Playground section of the main Arduino site is packed with how-to for those who look.
The Arduino site is loaded with reference pages, I keep a whole set of links bookmarked.
Switching mains power without causing interference is not automatic especially with lots of power used, the motors and power sections of the forum are where to read up and ask but for many small uses an opto-isolated relay module is just fine to use. You need to research the subject to see what will float your particular boat.
1500 Watt is huge load consider this
P=VI
V is 230V then Amp should ideally be around 6.5.
If it is heater load go for realy( 230V 15amps)
if inductive load like motor or something select Relay with( 230V 20 amps).
This can work.
You can choose from many wifi option
From 433Mhz to 2.4GHz .
Both work fine.
Your device load has nothing to do with arduino it is a job of Relay to serve the purpose.
Consider arduino as a crane operator and relay as a crane itself.