Looking at it with a magnifying glass showed how well formed the soldering worked, and considering how small things are, it’s really impressive. From your photos it looks like the whole job was a recipe for disaster. Repeat the soldering for the second LED. Use the scalpel to hold the chip in place and solder one leg using a very fine multicore solder and a good … All components should be tight down onto the PCB, avoid long component leads and it is recommended the finished product should be potted. Anybody got any ideas or suggestions on what else I could have done to make this work within this size and output let me know, ‘cause one day, just maybe, I might even try to replace the halogen headlights with LED(s). Reply Connect the tinned RGB wires to the copper dots of your strip lights. 5 Months isnt a long time, their supposed to operate way beyond that. Tinning soldering iron tip Tin the Tip: Trying to solder without a tinned tip is futile. I managed to spiral 2” of extra wire between the resistor and the first LEDs in the series just so there is at least some buffer from the heat conducting to the LEDs. Heat the leg first and apply the solder - good lighting and a good magnifier helps a lot. Cut two wires about 6 inches long…use different colors if you have them. solder electric wires to COB LEDs, tips with high heat capacities should be used. SMD LED single, dual, mulit color LED chip production. The double stick foam tape does an adequate job on holding the LEDs temporarily free my hands from having to hold the piece down. Share it with us! • After LED soldering, the package should be protected against mechanical shock or vibration until the LEDs have reached 40 ºC or below. First apply solder paste just enough to cover solder pads. To hold the LEDs in place, cut a piece of double stick foam tape and just stuck it to down to something … I’m not exactly a fan of having attention grabbing illumination for my plates. Even an LDO chip, low dropout voltage regulator, or an LED on the board consumes extra current that would affect our measured results, let’s say of the ESP32 power consumption. The two long wires protruding forward is from the soldiering of the heat sinks. With a … The flat one is cheap, just a couple of bucks works great in my license plate lights even though it doesn’t point directly down on my plates . Use the scalpel to hold the chip in place and solder one leg using a very fine multicore solder and a good quality fine iron tip. 125 ma Is just as fine :), Reply One way is to arrest it and design it so that the force of the vibration cannot overcome it, or just make sure it can vibrate without coming apart. I can't call my old soldering iron a soldering iron :D I couldn't tin it no matter what, and it was a mess, but this one, with a slight touch to solder it just tins itself! Don’t hold the iron on the chip too long. But hey, it was educational and I discovered some useful techniques I’m sure will come in handy for future projects. Nice instructable, well explained for beginers like me :DPs: you earned my vote for the contest! It simply shows how to solder a wire to the pin in real time, with text running over the video. A gentle wiggle when in position will dropped it in place. on Introduction. Use a medium conical one. I use a soldering iron and solder wick to pull as much solder off as possible. It would provide us with the wrong result data and give us a hard time to debug and find a solution to our problem. Unfortunately hand soldering without solder balls was more difficult than I expected. GURUmicro - 03/22/2012 Reply. 1 year ago, I would suggest using some flux to get some better solder joints, Question Slide a scalpel blade under the leg. Repeat until there are half a dozen legs free. on Introduction. Now for tinning the LEDs, I smashed a portion of the soldering wire flat, careful to not smash it too much because there is rosin flux in the wire. For now, I'm just waiting to see when the entire thing will fails, for now, it’s still plenty bright. One day, I just felt like replacing some incandescent 194 bulbs with LED bulbs for my car. The next step is to wipe off the excess solder with a wet sponge and finally reapply a little amount of solder to the tip again. An LED SMD Module is a type of LED module that uses Surface-mount technology (SMT) to mount LED chips on printed circuit boards (PCB). I wasn't able to keep my fingers on it after 20 seconds. Slide the scalpel blade under the body of the chip and gently ease it up while running the iron along the legs. The heat killed it since it didn't have enough surface area to dissipate heat quickly enough. Reply on Introduction, How to Make a IR Proximity Sensor at Home, CheApR - Open Source Augmented Reality Smart Glasses, "High-Fivey" the Cardboard Micro:bit Robot. The key was to be able to control the amount of solder that ends up on the final product. It’s got powerful LED lights in it and even if you think you can see well enough and the light is ok once you turn one of these on you’ll be surprised at what you’ve missed and couldn’t see before. I was able to pickup a piece of the precut soldering wire with a sewing needle and accurately align and deposited it on the contacts. Published time: 2019-12-24 11:50:41. Well, the LEDs been in the car over 5 months and to my disappointment, at least 1 of the 3 emitters, has died. I have since took it out, one side started to blink. The procedure for soldering waterproof LED strip is almost similar to that of soldering the simple strips except here you have to cut the epoxy sealant before applying to solder to the hard points of the strip. Basically it was meant to act like a spring and absorb the vibrations.Guess This is a good time for an update. First of all, I did some measurements of a 194 bulb, and did some sketches to approximate where and how to arrange the emitters. Now here is the part where having a steady hand helps. Wait a few seconds for the heat to pass through the braid and melt the solder. I couldn't think of any other ways to dissipate the heat since I can't fit a heat sink into the lens assembly of the car. Oh and i did easily solder an attiny13a! I can sleep well experimenting with cheap stuff! Tip cleaner thing. A light touch of the tip of the soldering iron and presto, nice microscopic balls of tinned contacts. The one on the right is a well designed replacement for the 194 bulb. Slide the scalpel blade under the body of the chip and gently ease it up while running the iron along the legs. Let this cool. Now for tinning the LEDs, I smashed a portion of the soldering wire flat, careful to not smash it too much because there is rosin flux in the wire. 7 years ago Had a feeling it would eventually give, actually surprised how long it lasted considering I knew it was really hot to the touch. To make the interface between the socket and the LEDs, I got a hold of some counter laminate samples, cut them to a square shapes that will slide into the sockets and used epoxy to form the base of the array. Solder the wires to the copper dots one more time and wait for them to dry. The chips are small, so don’t use too much solder. Flux, in case need to re-solder anything that didn't turn out well the first time. The trick is to avoid lifting the pads and tracks as well.When the chip if off, clean up the pads with solder braid.User a tacky flux like Chip Qwik SMD 291 on all the pads and seat the new chip in place. 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