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Comment by pwaai | Hacker News Reader

> I think these are great for people with experience using embedded electronics and comfortabke with soldering and low level programming (I.e probably a significant portion of HN readers).

Those days are over. The new chips come with a high level language like python, pip. You can program it like you would with a digital ocean box but with a lot more constraints in hardware.

I haven't done any soldering but I don't see why that should turn people off. I mean I am worried about the toxic fumes but I'm sure theres way to mitigate that.

The whole point of having my own chip and programming it is the experience itself. Particle.io does not make sense to me as it seems to be another commercialization via platforming of this space which might make sense in enterprise but for the hobbyist, I doubt it.

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nodemcu is a variant of esp8266. here is a great case from thingiverse[1] that you can get printed on 3dhubs for cheap. the case design lets you avoid soldering, the gpio feet just sink into the case, and make contact with any wires you want. not sure how solid this is compared to soldering, but i think for most use cases it's fine, and keeps things very simple.

as others have said, those days are over. micropython with esp8266 is insanely easy[2].

1. https://www.thingiverse.com/thing:1128026 2. https://docs.micropython.org/en/latest/esp8266

ah this is a perfect gateway for noobs like me! thanks for this.

I'm super excited about 3dhubs! I didn't know such service existed. Wonder what the pricing is like.

3dhubs is a market place. you choose from local printers, and if u go bottom of the barrel on price (as i do) it usually means u just wait longer for shipping. i printed x5 nodemcu cases and x5 raspi cases for ~$30 total, arrived a week later. pickup is also possible instead of delivery.

what software do you use to design the 3dhubs? do you need to know basic CAD? thank you.

i just used the stl files from thingiverse. no modifications.

You solder outside unless you've got a great exhaust fan.

And use lead-free solder. Not much to worry about really.

I've read another comment saying that actually produces more toxic fumes?

Lead free solder requires a higher temperature, so ther are more and more toxic fumes from embedded flux and from heated pcb and components.

I see...seems like I'll just get one of these

https://www.amazon.ca/Aoyue-Benchtop-Solder-Smoke-Absorber/d...

and stick with lead when I get the chance....I'll be sure to do it in well ventilated area.

And don't lick your fingers after handling leaded solder. Wash them first (with soap and warm water). Otherwise, I totally agree: it is easier to use and less frustrating, and the dangers are overrated (or: the dangers from lead-free fumes are underrated).

Me: I use leaded solder, I have a fan, I don't lick my fingers (while soldering).

Lead free solder in the long run damages solder tips and also is a lot more prone to the tin whiskers plague. Luckily I have a life time supply of leaded solder and hopefully will never have to touch the lead free junk.

http://www.militaryaerospace.com/articles/print/volume-16/is...

https://nepp.nasa.gov/whisker/background/

For hobby-amounts of soldering, stick to leaded and save yourself lots of frustration. General stock lead-free solder is much harder to work with, and if you are new to soldering it can be a horrible introduction to the fine art.

I would heavily recommend against lead free solder as the other commenters have done. Unless you have a ton of experience with soldering, avoid it like the plague.

Lead was never the problem (just dont eat solder paste). Its the toxic fumes from fluxes needed to wet the metal, aka etch away oxidation layer. Very nasty stuff. The nicer te flux (RMA, no clean), the more toxic.

The tiny amount of soldering involved in an 8266 etc project is not a concern. Use standard 63/37 lead/tin solder and wash your hands afterwards to be perfectly safe. The rosin flux fumes may be a bit annoying for some people, a small battery powered desktop fan will blow them away.

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