Quote:
Originally Posted by CamaroAJ
This is the kind of info I was looking for.
1. It will be in a car and it gets kind of toasty in Texas so that is a concern.
2. I won't have a crazy radio. My plan was to have this in some type of enclosure with it possibly being sealed with potting epoxy or a silicone type product.
3. No, it would be under the dash so it will be away from water areas.
4. I was planning on making this a stand alone unit with a 12v switched input. The sensor only uses 5v and the LED 7 segment board is also run off 5v. I was also going to run a ground output when in reverse to trigger my InfinityBox to turn on the reverse lamps.
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On 2, there is always NVH with any vehicle traveling down the road. We have different frequency profiles depending on how the chassis is setup and design our mechanical attachments to not transmit anything that would be harmful to the electronics. Also don't forget about the exhaust note and its impact. A bit of shock and vibration simulation should help, but normally we use test beds to shake and bake the hardware. See:
https://blogs.solidworks.com/solidwo...ified-use.html
On 3, don't forget condensation. Last time I was in Texas I was in San Antonio in the winter. As memory serves, the windows can get fogged, which is moisture. Also, I seen a bunch of videos on Texas having power issues when it got cold.
On 4, are you also going to put in a voltage regulator that will shut it off if the battery discharges past a certain point (i.e., to a level that would not work with the electronics)?
Just a few things to think about when your planning. There are housings that are completely sealed to protect the housed electronics. Then use the case shell as a conductor of heat. Just have to do the math to make sure everything will work out well. We do this with desert sealed units and we have stirring fans in the sealed up case so as to eliminate overly hot spots and use conduction to a large air based heatsink. You can model this with Solidworks (see:
https://www.engineersrule.com/therma...ow-simulation/).
