So beginner arduino user here, using arduino mega 2560. my question is. i'm using a RGB LED, to blink the red LED, ( with a resistor obviously) and it drew 7.78 mA. the chip got a bit warm, measured with a thermocouple i got like 30 degrees Celsius. is everything fine?
With only 7ma, 30° sounds wrong.
Show us a good schematic of your circuit.
Show us a good image of your ‘actual’ wiring.
Give links to components.
Which chip?
ATMEGA2560 ofc
schematic simulation: https://tinyurl.com/yzpvjbqx
photo:
components: https://www.amazon.com/Tricolor-Diffused-Multicolor-Electronics-Components/dp/B01CI6EWHK/ref=sr_1_3?dchild=1&keywords=10mm%2Brgb%2Bled&qid=1625274136&sr=8-3&th=1
and a 0.25W resistor from the elegoo kit.
and a multimeter to measure current.
also update it's 8.70 mA**** connection with breadboard issues...
Does the chip get cool/cold if the LED is removed from the output ?
nope. dang.
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Yes, what resistor?
What do you actually know about resistors? 
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