hackintosh/arduino question

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kasek
Posts: 25
Joined: Sat Dec 14, 2019 7:48 pm

Sun May 03, 2020 5:26 am

hey never done anything with arduino before so wondering if this is possible. i found this: https://www.amazon.ca/Traffic-Display-M ... 19&sr=8-63
i have the alpha , i was thinking, like i said i have no experience here, could that led be used and programmed on a hackintosh to light up based on cpu temp? like mayb 0-60 green 61-80 yellow and 81+ red

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ccs_hello
Posts: 589
Joined: Sat Oct 13, 2018 9:16 pm

Sun May 03, 2020 2:26 pm

Per picture, it appears that the R-Y-G LED module does not have the necessary current-limiting resistors. This means it will exceed Arduino's I/O pin driving capability unless you add your own (e.g., 470ohm per color LED, you'll need 3.)

With that done, you'll need to send the CPU temperature reading from the OSX side (if such kernel driver is there and supported) to the Arduino side thru the existing Intel <-> Arduino virtual serial port as the communication channel.

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kasek
Posts: 25
Joined: Sat Dec 14, 2019 7:48 pm

Sun May 03, 2020 5:06 pm

https://www.instructables.com/id/LED-Tr ... duino-UNO/

i was looking at this did they not need resistors because of the board they used?
also what would i need ot tell if that is even possible im guessing a software app or something?

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ccs_hello
Posts: 589
Joined: Sat Oct 13, 2018 9:16 pm

Sun May 03, 2020 11:09 pm

No good if no current limiting resistor on direct-drive LED from Arduino I/O pin.
The picture I've see on that board doesn't show that other than 0 ohm.

Others are s/w puzzles. You'll have to check yourselves.

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