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openeew / openeew-sensor

Hardware for an OpenEEW sensor
https://openeew.com/docs/build-sensor
Apache License 2.0
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Layout preparations #33

Closed perigoso closed 4 years ago

perigoso commented 4 years ago

Working on the layout, this is a draft PR, it will be marked ready for review when the layout is finished.

Closes (no longer the case)

26

perigoso commented 4 years ago

For ease of review, the current state:

image image

perigoso commented 4 years ago

I took some liberty with the layout, I changed the location of a lot of things, I realize this breaks compatibility with the current case design, but I'm hoping that other than that it doesn't create issues.

I can explain my reasoning behind the location of anything if need be, just ask.

I'm hoping for some feedback, I'm sure I'm overlooking something, that's always a given.

andygrillo commented 4 years ago

For me the layout looks like a big improvement. I love that the leds are in the center, as it was odd before.

Am I right that the adxl is on the left? If so, that's great as its away from any interference, and close to a mounting hole for minimal board vibrations.

I also think placement of usb and ethernet look fine.

My one comment is that we might want at least one mounting hole on the bottom edge. Otherwise it could wiggle when you plug cables in.

On Wed, Oct 7, 2020, 6:54 PM Rafael Silva notifications@github.com wrote:

I took some liberty with the layout, I changed the location of a lot of things, I realize this breaks compatibility with the current case design, but I'm hoping that other than that it doesn't create issues.

I can explain my reasoning behind the location of anything if need be, just ask.

I'm hoping for some feedback, I'm sure I'm overlooking something, that's always a given.

— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub https://github.com/openeew/openeew-sensor/pull/33#issuecomment-705252477, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABP5GHPDDVYABXJY6SKA4M3SJT5SRANCNFSM4SIBGYPQ .

perigoso commented 4 years ago

2020-10-09_16-19

perigoso commented 4 years ago

I added mounting on the bottom, in between the LEDs, we may merge this for now

andygrillo commented 4 years ago

oh nice ! those work well - the adxl is near the mounting which gives rigidity, and the bottom edge is now fixed :)

On Fri, 9 Oct 2020 at 10:24, Rafael Silva notifications@github.com wrote:

I added mounting on the bottom, in between the LEDs, we may merge this for now

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gareth2020 commented 4 years ago

This layout looks very good.

I also like how you have kept the accelerator away from the buzzer, LEDs and Ethernet.

I assume that it is OK to have Q3 just inside the bottom corner of the KEEP-OUT ZONE. We might do an elector-magnetic field simulation to see the effect of having the ground plane clipping the corners of the KEEP-OUT ZONE. However we know that the WIFI seems to work OK in v1.0.

Do we do anything to prevent the PCB moving on the mount points during a tremor ? e.g. apply a blob of epoxy resin? Because it will be hard to do that to the mount point under the buzzer - but it will probably not matter anyway.

It might be better to move SW1 away from SW2 so that they will not accidentally get pushed at the same time.

Would it make more sense to have D1 D2 D3 go clock-wise instead of anti-clock-wise ? or is D3 D2 D1 the good order from a programming stand point ?

The GPS jumper seams to be well located. I assume that GPS boards will fit well without the case being in the way. If this GPS is so cheep anyway - why do we not solder it directly on the PCB ?