Fans have most times a small pcb, and a SMD control chip, which in my case went up in smoke... no smoke from the main board... just looking for confirmation if the BD679 is doing the fan control or not...
The PCB on those fans does the PWM, which is not very wise, as it does the same as the PWM on the UM board.Fans have most times a small pcb, and a SMD control chip, which in my case went up in smoke... no smoke from the main board... just looking for confirmation if the BD679 is doing the fan control or not...
The BD679 is turning the fan on/off. So if it's always on then it's most likely fried.
It could be that the output of the Arduino is fried, easy to test, turn on the board without the Arduino connected. If the fan turns on, the BD679 is fried.
The BD679 is turning the fan on/off. So if it's always on then it's most likely fried.It could be that the output of the Arduino is fried, easy to test, turn on the board without the Arduino connected. If the fan turns on, the BD679 is fried.
It's fried, thanks for confirming... now I need to find a new one.
sells them for 29 cents, which is cheaper then Farnell. They also have affordable nuts&bolts, and loads of other stuff.
http://reichelt.de/ sells them for 29 cents, which is cheaper then Farnell. They also have affordable nuts&bolts, and loads of other stuff.
They are in Germany/Europe, I'm in the US/NYC... I'll find a local supplier...
Recommended Posts
owen 19
I thought fans only usually have a coil in them and wouldn't be affected by reverse polarity except that they'd run backwards.
Link to post
Share on other sites