The capacitors can be installed in either direction.Next, use the tweezer or needle-nosed pliers to place each surface mount (SMD) component on the PCBs as shown in the photo below:.It is okay if it is messy or smeared - simply leave the smudge for now, since it is much easier to remove after the PCBs have been reflowed later in this tutorial. Do not try to wash the soldering paste away with water or cleaning solution. If you accidentally add too much soldering paste, wipe the excess away with a paper towel or cotton swab. Carefully squeeze a small amount of soldering paste onto each of the exposed pads as shown in the photograph below:.You will be using your syringe of ChipQuick to apply solder to the exposed pads on each PCB. ![]() Lay out your boards on a hard, flat surface.Avoid doing this over carpeted floors or other spaces where there may be a lot of static electricity. Used with permission.Make sure you have all of your materials laid out and ready in a well-ventilated area. View and contribute to our wiki page for beginnersīanner from original picture by Sergej Klammer ( /u/zappadoing). something beyond 'stick decoupling caps everywhere'! Related subredditsĮlectronic circuit design and repair questions go in /r/AskElectronics NB: This is for original work - pictures of stock kit builds will be deleted.Ī useful or insightful technical note on component selection, circuit design or testing etc. To qualify as a project, the details available should allow someone else to make a copy. If you are just posting pictures or videos with no further write-up, please use the 'Gallery' tag. Show us your (or someone else's) electronic circuit design and/or final build. If in doubt, contact the mods before posting.Įlectronic engineering-related posts that don't fall into any other category.Īn electronic engineering-related news article or announcement. Videos with commercial content or sponsorship/patronage requests are likely to be removed repeat offenders may be banned from the sub. General pictures or videos related to component-level electronic engineering (See posting Rule #1). Please categorize your post by clicking the " add tag" (flair) button after submitting it.Ĭlick a tag name below to view just the posts in that category Click HERE for our Wiki - Tags / Flairs ![]() ![]() 2e) Memes (pictures w/text), low effort ("shit-posts"), as decided by the mods.Do not post an enclosed assembly just because it contains 'electronics' internally 2c) Consumer products (marketed as "electronics") or self-made products, even if historically significant.2b) Plain electrical components and circuits (no active components), such as transformers, relays, resistors, light bulbs, cables, batteries, connectors, sensors).PI -, a relay module, a computer mouse) projects that are based entirely on such ready-made electronics assemblies (e.g., a green-house watering system that uses an Arduino and no other electronic components) 2a) Ready-made electronic assemblies (e.g., a Single-Board-Computer - Arduino.'Tip" is for tricks and suggestions useful to the electronics designer.'Project' must link to full (non-commercial) build instructions.This sub abides strictly to Reddit's Rules of Self-promotion. Applicable even if free or if submitter does not benefit monetarily. ![]() No commercial or promotional posts: advertising, endorsing or praising a company, fundraising and crowdfunding, giveaways, sponsored products and services, selling, offers, product announcements and information, blogs, videos, pictures of / links to commercial boards. The focal point of a submission must be component-level electronic engineering, design, news, and circuits (with at least one active element: a semiconductor or a vacuum tube/valve). As this is a professional sub, act and speak professionally. A subreddit dedicated to news, articles and general discussions related to the field of electronic engineering.īe civil: Do not insult fellow Redditors.
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