iPhone ready - Nanjg stripping and A17DD-SO8 building videos

Cajampa, did you look at this one? Guide: how to flash ATtiny13a based drivers (NANJG, QLITE, etc.) with custom firmware

wow :slight_smile: yes that looks exactly like something that will straighten out a lot of ?
thanks

Nice videos. If a picture is worth a thousand words, then a video is worth the commercials, then a video is worth pixels times as many, then a video is worth more. Some different techniques to try.

You’re all welcome. (And thanks for the complements folks.)

I struggled with soldering for a long time - but I don’t feel like the struggle was at all necessary to become proficient. The struggle was all because I hadn’t learned to solder correctly, it was not part of the learning process. If you find that the soldering is not as easy for you as it looks in my videos, please post about where you’re getting hung up.

For me the biggest sources of problems tended to be excessive use of force and/or applying heat for too long. IMO generally both of those problems are/were actually symptoms of either a technique or equipment problem. Nobody uses too much force or heats for too long just for the heck of it…

Go do it! If you want to start with something disposable then strip some of the worthless 2-amp DD drivers, you’re probably saving a pile for no good reason. (I know I am.)

What aspect do you have trouble with?

Which boards? If you have the parts what do you need a list for!? :stuck_out_tongue: Check posts #36 & 38 in the driver thread for A17DD-SO8 parts from Digikey and Mouser. I’d go with Mouser because the shipped cost is significantly lower.

I’m using ~392° Celsius. I rarely adjust, check, or pay attention to the temp knob.

I think I’d spring for the Pomona, but I wouldn’t get it from Digikey! There should be plenty of options for European folks to pickup a Pomona 5250… I think you can keep it under $20 USD. This ebay seller for example: Cpt-063 Test Clip Soic8 Pomona 5250 for sale online | eBay EDIT: the shipping preview price seems to be very wrong. Maybe this Italian seller instead?~~ http://www.ebay.co.uk/itm/Clip-Test-SOIC-8-pin-Cable-POMONA-5250-ORIGINALE-/271702107691?pt=LH_DefaultDomain_101&hash=item3f42b5262b

As to the flashing, DavidEF’s link is exactly where I would have sent you. Hoop drew on all the scattered BLF resources I normally refer back to, as well as probably a couple of things I missed. :wink: Be very gentle with your SOIC clip, do not pull on or attempt to bend the contact pins.

Mainly trying to keep the components in place. I’m probably applying too much force.

SMD parts do seem to have a very low escape velocity.

You’re probably right. The iron only requires gentle pressure; it’s the same for the tweezers and component. In the videos I think the only time I applied any pressure was with the solder wick, which I’m not always very good at using. I should have added flux instead of pressure. The rest of the video I’m really just placing the iron against things.

If heat isn’t moving from the iron to the target then maybe it’s time to clean and re-tin the iron or maybe add some flux to the area the joint needs to be in.

I most often lose components when they escape my tweezer death-grip. There’s no reason for that much pressure on the tweezers but I’m impatient, stubborn, and over-eager enough to have the problem regularly.

Wow very nice videos. It’s most informative to see how you do this. Thanks!

oh wight…I ordered some of that no clean liquid flux

You’re video’s made it look “too” easy :wink:

@cajampa

You could also order a pomona clip from tme.eu

Thanks wight for trying to find some more affordable options, but unfortunately the italian ebay sellers price would be 58$ delivered to Sweden :frowning:

But thanks to chouster i think we have found the cheapest price yet for the pomona test clip in the EU only 29.51$ delivered, nice now i have to check if tme have some of the driver components so i can order them at the same time, thanks again chouster you saved me 30$ :slight_smile:

So in the EU the final cost for the MCU flasher kit amounts to
Pomona test clip 29.51$ delivered

USB programmer from fasttech $3.93
https://www.fasttech.com/products/1002900
40-pin Splittable Ribbon Cable (20cm) from fasttech $1.99
https://www.fasttech.com/products/1011800

Total = 35,42$

I want also to build the A17DD-SO8, so from my understanding all the parts are from the nanjg 105d like the resistors, capacitor and the attiny except the FET and otc that i have to buy separately? How about the 105c, are the components the same as the 105d?

Yeah,looking forward to getting more videos of the flashlights :slight_smile:

Yes 105D is the same, just a different location of the 7135’s on the spring side of the board, a different PCB layout, same components

Here are links to stream/watch the videos on a modern iPhone or iPad. They should also work on Android phones and Google Chrome. You may also right-click and save-as if preferred.
How to strip a Nanjg-105D for parts with a soldering iron. - iPad / iPhone
How to assemble an A17DD-SO8 with a soldering iron. - iPad / iPhone

Here are lower resolution links for older iPhones and/or devices which cannot play 720P. (For anyone who’s concerned about data usage these files are also much smaller.) You may also right click and save-as if you prefer.
How to strip a Nanjg-105D for parts with a soldering iron. - lowres iPhone
How to assemble an A17DD-SO8 with a soldering iron. - lowres iPhone

For Internet Explorer using the original video URLs is still best:
How to strip a Nanjg-105D for parts with a soldering iron. - Internet Explorer
How to assemble an A17DD-SO8 with a soldering iron. - Internet Explorer

Dude alex, I know you don’t think you need one, you think your way is easy enough (right? I know I did for years) but get yourself a few decent work holders, I promise you it’ll make your life a hundred times easier!

I know, I know, the pieces didn’t move around much in the video’s but dude I swear to you, start using work holders (helping hands or a jewlery clamp) and you won’t believe you used to think it was easy to not use them.

I highly recommend the same for beginners too, nothing more frustrating when your new and trying to learn than your work piece rotating around on your or sliding further and further away!

I have multiple work holders. I only find them of limited usefulness…

EDIT: Especially in this case. The relatively tight zoom gives a limited DoF and you’ll note that I frequently rotate the work.

Thanks for doing that, it's always good to watch a master in action. I obviously need to invest in a good soldering iron!

nice video, steady hands and very good soldering skills.
thanks.

Almost makes me wanna try it…….almost :wink: