How to read raspberry pi temperature from script on an Arduino to control fan

Question

我正在做一个包括我的树莓派和 aruduino 的学校项目，我制作了一个温度脚本，允许我监控 pi 的当前温度，我想知道是否可以从我的 arduino 读取此输出以控制风扇的速度。

Answer 1

You can actually to it all with the Raspberry Pi. Control you fan with a PWM value that will then turn on and off a MOSFET.

If you really have to do it with the Arduino, the "simple noob" way of doing this is to send a PWM pulse output from the Pi and analog read it from the Arduino. From there, do the same as you would do with the Pi.

Answer 2

You could also use serial communication. If you have to use the Arduino, then Dat Ha is right, PWM is the easiest.