October 17, 2019 at 3:42 am #6786
The wifi stopped working in 0117 recently, and I had it at work while I located a programmer (on the theory that maybe it was the firmware). Sadly while moving it I dropped it ~30cm onto a hard surface and the wifi module fell off the main board. When I resoldered it everything worked again. I reflowed a few other joints on the board that also looked a bit dry. That suggests that the wifi failure was actually due to the quite poor soldering job from the factory.
It should be online now (I’m about to take it back home):
https://www.uradmonitor.com/tools/dashboard-04/?open=82000117October 17, 2019 at 12:46 pm #6787Wolfgang MahringerModerator
Nice fix, your unit seems to work great now. Can you post a picture of the soldering area? I’m just curious….
WolferlOctober 22, 2019 at 10:47 pm #6791
Sadly my phone is awful at this level of macro, but this is after I re-soldered it. I didn’t really look too closely when it was broken because with the module off it was obvious what the problem was. The capacitor next to it looked like slightly dry joints, just not quite enough heat.
I should have gone round the corner and got Dave@EEVBlog to fix it and make a video. He is the next suburb over.
Attachments:October 23, 2019 at 8:36 pm #6793RaduKeymaster
hi Moz, congrats on that! Dave helped you with it?October 24, 2019 at 11:39 pm #6801
No, I have very limited surface mount skills but managed to get it done.
I should have gone to Dave, that way we’d get a video. I will open up 116 and have a look at that too, and if it looks suspect will see what Dave says. The workshop downstairs is all set up for this and there’s a proper microscope that I can get hopefully screenshots out of. I just have to bribe the technician 🙂October 25, 2019 at 3:24 am #6802
What I should have done was gone downstairs at work and used the proper microscope rather than faffing about at home. Here’s some shots of 116 opened up. Sorry for not thinking of this before I fixed 117 🙁
I would be more comfortable with just a little more solder on each of the pads that attach the module.
Also, Radu, can you please move 090 into this account or 116+117 into my other account?November 15, 2019 at 2:01 pm #6853RaduKeymaster
hi Moz, The picture doesn’t show , can you please download it and upload it on the forum directly?
All 3 Units moved to your account (moz@***.***.nz)November 18, 2019 at 11:51 pm #6864
Thanks for moving the units to this account. I’ve just updated the locations, and the ‘randomise location’ option is working well. If you want to see air pollution in Sydney from the early season bush fires it’s visible.
Weirdly the images show for me even trying multiple different browsers. When I tried to upload them to the forum I ran into size issues. I’ll put them on my website and link them directly. What I will also do is bring 116 back into the office and take photos of that. Please stand by 🙂November 19, 2019 at 10:26 pm #6871
here’s photos of the wifi module from 117 after my hack job. It does work though! the b and c photos are tilted up a bit to make the soldering easier to see
Attachments:November 20, 2019 at 8:19 am #6876Wolfgang MahringerModerator
Nice solder job, thanks for the photos!
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