Thread: Tutorial/Documentation Requests

From what I understand the Fusion Brain can supply up to 400mA per output channel. I fan I have here by my computer says its rated for 0.4A (400mA). In my inexperience it would seem that my no-frills fan would likely trip the fuse/breaker with any little bit of variance (fan or Fusion Brain or power to the Brain). :/ I would think the MOSFET board would be the way to go...

Ah, I checked my Cooler Master 120mm fan and it uses 0.16A (160mA), which is obviously under 400mA
I'd say it depends on the fan.

Right, I have run fans from the FB before but I'd like to control the speed simply through an analogue voltage output (PWM). With the MOSFET board, how do you 'program' it in MDX to do it is my question.

Hardware wise, you can just hook it up directly. Power it off of the pins, and the ground is switched, modulating the speed.

Programming wise:

Software PWM:
<iochannel id="Digital Output 0" port="15" brain="my fusion brain 0" type="digital_output">
<defaults defaultstate="off"></defaults>
<options mode="standard">
<pulse duty_cycle="50" period="XX"></pulse>
</options>
</iochannel>

Hardware PWM:
<iochannel id="Digital Output 0" port="15" brain="my fusion brain 0" type="digital_output">
<defaults defaultstate="off"></defaults>
<options mode="pwm">
<pulse duty_cycle="50" period="XX"></pulse>
</options>
</iochannel>

any update on the HVAC controlls by chance? I've had my fusion brain 6 for almost 2 years now. still have no clue what I'm doing. lol