I very new to this feild, i want to make a hotplate for my replica assigment. while i called replica, i still need it to be usable or atleast can heat up the plate to +50 Celcuis. i want to know i how to supply power to my arduino board while also supply heating element with the higher volatge power supply from one socket/source.
the thing i know:
arduino only need 7 to 9 v to functioning.
heating element need high volatge around ±230v.
if i miss anything pls share it with me. not urgent so dont worry.
The lethal voltage must be isolated from the Arduino, you, and your computer if the USB is plugged-in.
A relay is the standard solution. A relay is an electrically-isolated and electrically-activated switch. With heading you don't need to "dim" the power because the heat doesn't change instantly. Virtually all heating & cooling systems simply cycle on & off to maintain temperature.
There is one "catch" with relays - The Arduino can't directly drive a relay coil. But there are relay-boards with a built-in driver circuit or solid state relays that can be directly driven by the Arduino.
i wanna made replica of the hot plate.
so... the target of heating should be from ambient to ±50 celcius.
heat up the small glass container around 250 ml. its for presentation about how does hotplate work.
i know, it basicaly a heating coil with electric going thorugh them and it heat up.
but i wanna made it to can be adujusted.
well this before reconsidered to change it.
rt now i wanna made a basic water bath for my replica. sorry for nuisance or inconveniece from my part.
In addition it's important to know the wattage of your heating element, wattage or current draw?
Next I would likely use an SSR (Solid State Relay) to drive your heater element. This will afford you isolation and afford you driving the SSR directly from your Arduino on the control side.
Finally how were you planning to sense temperature? I am guessing you want to control the hot plate temperature.