It’s done… The mighty Nano has been deployed in my TV cabinet, behind the Xbox One. The TMP36 thermistor is resting at the end of a cable on top of it. When the XB1 is turned on and the temp rises to 30 degrees, the fan kicks in, and will give a smooth stepping of speed up until 50 degrees, where the fan is maxed out. (I’m hoping I never get to this stage!!).
But, in the true spirit of tinkering, I’ve already got at least 3 improvements/changes that I want to put in to the next version!!
Firstly, the RPM calculation isn’t working properly, but that’s moot anyway, because I’ve got no way of showing what it is!
Secondly, the flashing LED is a bit pointless, because the on board one is bright enough, but in any case, it wouldn’t be needed if #1 is done.
Thirdly, I need to mount it properly, in a box.