An Esp8266 Nextion Scene controller??
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Hehe, thanks. But at that layer, I have not done much. It is more a matter of adding a new transport layer next to the existing swi driver. But the driver is heavily tailored towards swi use, so there will be some tinkering needed down there. But at least it is isolated to a relatively small portion of the codebase.
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for fun, few pics of the proto board...
I have not dev lot of things yet with it but it works with minor fix except I am trying to do sort of a thermostat gui but design is not my best :laughing:
when i did it I made a non smart choice... to92 :flushed: ugly isn't it! I did that because I wanted it easy/fast handsolderable (1206+through hole) but I should have done all through hole in this case, I should have slept more I think :tired_face: lol I have discovered that other people have done great/smart boards like this one too...tough! I have mine, different features with few things I could do better....but I will the changes on design files.there is an onboard lipo charger too, so I can use usb only, usb+lipo and charging...
Now pics:
the big component on bottom is a fuse for usb, I forgot to order smt version
for fun, could look better :blush: -
@scalz said:
about openhardware.io. What's your strategy? Do we have to use the new platform, or hardware section + new platform (+ github, gloups!)? In the other hand, can I use the new platform if I use Eagle (not opensource, and no time for kicad unfortunately...). I think it's maybe a dumb a question..and it's just a matter of taste.
Opps, missed that one.
The idea is to use whatever tool you'd like. I'm trying to make it recognise CAD design files from all major brands (commercial included). But it might be good to upload the Gerbers along with your cad source files so people have a chance to actually build upon your work.
Keeping everything in a github repo will help your with the versioning bit. To update OpenHardware when you push something, just requires a push on the refresh-button (I will do a daily scan of all connected repos eventually).So yes, use Eagle!.. they have a free version if I remember correctly?
Your proto board (and Nextion screenshots) looks great BTW!
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@scalz said:
about openhardware.io. What's your strategy? Do we have to use the new platform, or hardware section + new platform (+ github, gloups!)? In the other hand, can I use the new platform if I use Eagle (not opensource, and no time for kicad unfortunately...). I think it's maybe a dumb a question..and it's just a matter of taste.
Opps, missed that one.
The idea is to use whatever tool you'd like. I'm trying to make it recognise CAD design files from all major brands (commercial included). But it might be good to upload the Gerbers along with your cad source files so people have a chance to actually build upon your work.
Keeping everything in a github repo will help your with the versioning bit. To update OpenHardware when you push something, just requires a push on the refresh-button (I will do a daily scan of all connected repos eventually).So yes, use Eagle!.. they have a free version if I remember correctly?
Your proto board (and Nextion screenshots) looks great BTW!
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@scalz
Oh my Nextion are still located on my desk in their original shipping case ;-(Great job, next time we'll see you'd be able to show me how to use them ;-)
By the way where to you get your blue PCB ? The blue I have from ElectroDragon does not looks so good. But the Red they have, rock ;-)
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hihi. yes very happy! you're right for the price and still don't understand why chinese have not done yet all changes advised by unified!!! after changes done, it's very cool!
some other things on my toOrder: a hot air for rework (in case), and need to tinker a small solder paster dispenser with stepper motor (can be useful when I have no stencil). but stencil+reflow, wow so fast! chrono stenciling 5-10min, reflow cooking 5min, and "hand" pick&place depends how I am organized but it's a lot faster than handsoldering + no more fear :) But this board is handsoldered, 1206 is pretty fast to do.. -
I always had pain for solder paste dispenser (that's a shame because has you said, you do not always have stencils) because the solder always stay on the top of the dispenser and not on the pad, but may be I'm doing wrong but tried a lot of position !!
What solder paste are you using ? leaded or not ? I needed to change settings for leaded because it needs to be approx 250°C and it's difficult to calibrate (oven says 250 but really ?), and at this temp sometime the PCB change it color a little bit due to excessive heating.
What I noticed also at 250°C (didn't tried on leaded) is that heating is not uniform, I mean on a big PCB solder paste does not melt on corners, good to know, but not fun, I could increase temp and time but PCB will change it's color more and more ;-)
That said, T962 for leaded is really good, but attention need to be taken with lead free solder paste, reach the limits ;-)
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I am using leaded chipquick SMD291AX Type3. Works well for the moment with 44pinVQFN fine 0.5 pitch. For smaller pitch, I think type4 or 5 is better (but more expensive) and I don't need it yet! I have not tried the reflow with cheap chinese paste yet. I have seen cheaper solder paste at RS (multicore) but not tried yet. I wanted to have all chance on my side that's why I read lot of reviews, choosed leaded + chipquick. I was a little bit disapointed because I had to order at digikey for the solderpaste, as mouser don't ship it..
Before using the reflow, I did multiple test, to check how the t962 was heating and then I tried to reproduce solderpaste curve. then tried with few old pcb to look after some burning, tuned a little bit the curve and then it was ok on my first real reflow :) Thx for your feedback ;) can't wait to tinker together... :) -
I know the thread is getting old, but I had to say Scalz I love the work you have done on this project!
Beautiful renders and a great board in the end. How many hours do you have in that PCB design? What is your rate for a similar board with the a few minor modifications? I don't mean to offend, and that's not to say your board is not perfect, I am just interested in adding a radio module sort of.
Thank you for sharing, this thread that finally got me to register with the site. I have merely been a visitor for over a year now, but this was a great project.
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@Joshua-Nulton thx :)
I don't remember for the time as i don't count, but it was not personnaly the hardest ;) because there was enough room. I made it because I was thinking it could be everywhere as there is also i2c temp/hum/light sensors onboard.Nextion is really nice, but it's not a mobile phone screen or oled. For this applicatio, imho it could render better using a cheap tablet with a nice wood or metal frame connected to controller. A little dilemma. I have not finished to design a case btw. too much things :) and add to this, I have a made a custom discrete multisensors for indoor with pir/temp/hum/lux...
So for the moment, I am only using one. for multiple things. I tried it for thermostat feedback through mqtt etc.. but I have a controller which does thermostat, and it's cool on mobile too.
Actually i have it connected to a signal generator (ad9850 like) and use nextion to config/change waveforms, for testing etc.. connected to a lipo. sort of fun&basic digital instrument (even if i have a better one).what changes would you like to see for instance? if i remember right, I can't use all features if radio module as esp8266 lacks of pins. I think i will redesign it as soon as i can get an esp32, just for fun, ;)
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Hmm hey sorry for dumb question especially since it's a super old post but I don't seem to find a link to the eagle/cad documents or a way to buy this shield. I have Nextion 2.4, 3.2" and some enhanced version too.
Let me know if I missed the buy button or a way to get the fritzing/eaglecad I can change myself and maybe adapt to my sousvide and thermostat project :).
Help Please,
DV -
@David-Vitrant said:
Hmm hey sorry for dumb question especially since it's a super old post but I don't seem to find a link to the eagle/cad documents or a way to buy this shield. I have Nextion 2.4, 3.2" and some enhanced version too.
Let me know if I missed the buy button or a way to get the fritzing/eaglecad I can change myself and maybe adapt to my sousvide and thermostat project :).
Help Please,
DVHere is the nextion pcb
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@Didi same as one on Scargill site ? I just saw that one a few minutes ago. Did you do your own or pick and place it ;)
Seems like fun.
