Originally posted by Panici
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Feeler - Touchscreen OBC with Megasquirt CAN interface, extra sensors, outputs, etc.
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Slight delay on PCB revisions discussed previously, and therefore a slight delay in placing the order (got sidetracked working on my VGT control algorithm). As mentioned, I'm not an electrical engineer, but figured out how to use some of their tools with no formal training - a dangerous combo!
I've been using this questionable skillset at my job to design some prototype PCBs for battery-powered IoT devices, with several iterations done by this point. This is an application in a very hard environment (freight railroad), albeit with very little in the way of EMI. They have been working great in the field, but to scale up to higher volume we've hired a design firm to review the current PCB design and either suggest revisions or redesign from scratch. Overall, I apparently did a decent job, but they had several "best practices" type suggestions to improve long-term durability, decrease power-supply noise, etc. Things like "if an IC pin uses multiple bypass capacitors, put the smaller one closer to the pin." Super helpful for me, and I will be including the suggestions in the revisions to the touchscreen OBC board design before I place the order.
Goal is to make the revisions and order the boards before the end of the weekend. I've also ordered 3 full enclosure kits (enclosure, bulkhead connector header, etc.), as well as 15 bulkhead connector headers. The bulkhead connector is the part that's super difficult to find in stock, and I suspect the 3 full kits I ordered were not actually in stock as claimed by the seller. But the 15 hard-to-get connectors are on their way and should be in-hand very soon.
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The service interval lights in my car are going to be converted to shift lights. I already have the board to do so ( I've had it for 2 years now, lol being lazy) Would this be something you could do as well to work hand in with your touch screen or maybe a new thing all together. Just a thought. There is only one company I think actually doing it right now.
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Originally posted by It's Soda Not Pop View PostThe service interval lights in my car are going to be converted to shift lights. I already have the board to do so ( I've had it for 2 years now, lol being lazy) Would this be something you could do as well to work hand in with your touch screen or maybe a new thing all together. Just a thought. There is only one company I think actually doing it right now.
https://www.e30ig.com/#1thing
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Originally posted by mikey.antonakakis View Post
Whoa cool! I think that should be doable in several different ways. Do you know how I can find more details on how to program the set points or installation instructions or something? That might help clue me in on how it works.
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Bulkhead connectors arrived. They are keyed so you can't mix them up:
Untitled by Mikey Antonakakis, on Flickr
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Originally posted by mikey.antonakakis View PostBulkhead connectors arrived. They are keyed so you can't mix them up:
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In addition to those 15 bulkhead connectors, I ordered 3 full kits (enclosures, bulkhead connectors, harness-side connectors, pins, etc) from a different supplier. Two of the three kits are missing a major component, lol. Honestly looks like someone raided the kits to fill orders for individual parts.
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Originally posted by mikey.antonakakis View PostImage
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PCB design updates well underway. Kind of a lot to it, so far I have the schematic updated and I still need to redo the actual layout. But, I am having a design review today with the design firm that's helping with the PCBs I've done at work, so their recommendations will get rolled into this one.
Oh, it's getting a 3-axis accelerometer, too (ADXL362, +/-8g max). No gyro/magnetometer on this one - I haven't found any with good analog signal processing before they digitize it. Gyro would really only be helpful if you really wanted to record yaw rate.
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Originally posted by mikey.antonakakis View PostPCB design updates well underway. Kind of a lot to it, so far I have the schematic updated and I still need to redo the actual layout. But, I am having a design review today with the design firm that's helping with the PCBs I've done at work, so their recommendations will get rolled into this one.
Oh, it's getting a 3-axis accelerometer, too (ADXL362, +/-8g max). No gyro/magnetometer on this one - I haven't found any with good analog signal processing before they digitize it. Gyro would really only be helpful if you really wanted to record yaw rate.
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Board revision finished, maybe. Need to go back and double-check some stuff, make sure I'm not forgetting anything. I think I may order 15 of these to start.
I will have to order the VR sensor signal conditioner IC separately and solder by hand. Nothing spells fun like 0.5mm pitch surface-mount soldering!
Capture by Mikey Antonakakis, on Flickr
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