So my new laser module produces a lot more smoke, that makes sense since it is much more powerful. It is possible that I need to up my air assist game, although I did not see significant scorching on the few test cuts that I have done...
The second prototype was soldered on a hot plate - maybe it is the reason why the accuracy is worse than for prototype #1, that was hand soldered? Another source of error in this case is the output resistor R29 - its value is 1k in this case and that,...
They say necessity is the mother of invention. Have you ever been right in the middle of a project, when you realize that you could hack up a simple tool which would make your current task easier? Maybe it’s a coil winder, or a device to hold .100 headers...
The first revision of the IuT voltmeter was built using the Wemos mini prototyping system, in particular D1 mini board and matching shields: dual base, battery shield, protoboard shield.(Note 1: more about Wemos D1 mini shields - at the end of the log...
Hi everyone, welcome to the Hack Chat. We're excited to have @Mohit Bhoite | मोहित भोईटे today to talk about his wonderful circuit sculptures. If you haven't seen them, you should check them out at https://www.bhoite.com/sculptures/...
Populating (or stuffing) circuit boards can be a messy process. It's fraught with high heat, chemicals and teeny tiny parts. What could go wrong? 😬 In this post, you’re learn how I assembled the first prototypes of the nRF9160 Feather. It's my...
When I selected the tiny QFNs for the LDO and the MCU, I imagined it would be hell to solder them correctly. I was sooo wrong ! Check this out: Fig. 1: 3.3V LDO: 2x2mm QFN, with thermal pad. Fig. 2: STM32L072KB: 5x5 mm UFQFPN, with thermal pad.You need...
Now, I show you how to use the CAPSENSE technology to unsolder components, and again using the PSoC 62S2 WiFi BT Pioneer Kit board. Below I show you the schematic diagram. Schematic Diagram Schematic diagram How does it work? Here I will use the device...
Maybe I should have soldered to the pcb, in case of an accident... As seen in the last photo, there are 4 holes for holding the dial, do not undo them to keep the dial in place :D Cleaning the contacts could also be good a idea, since it is open :D
UPDATE -- New SOIC-breakout... see below.Working on a solderable-prototype... due to solderless-breadboard-wiring-wonkiness.Decided not to design a full-on PCB, yet, as it's still in the prototyping-stage...Decided on 70mm x 70mm boards, they're much...
Looked into dealing with removed solder pad Looked into hot air reflow station Bought: Hot air reflow station Solder paste Magnifying glass stand with lights 0.5mm solder 0.8mm solder tip Solder cleaner (sponge and tap water can damage tip over time)...
Soldered all of the LM324 quad amp IC'sSide that is more beveled is where pin 1 isIncorrectly oriented the first one, bought a heat gun to de-solder and re-orient itBought isopropyl alcohol pcb cleaner to clean flux and solder residueOrganized bags containing...
Thought Experiment: You solder a very tiny connector to an breakoutboard to try beep out the thing you connected to that connector. You find a few connections but for Farad sake you can not find others. You totally must have broken some connections on...
My most recent JLCPCB order arrived today, which contained:The i2s soundcard based around the TLV320AIC3104 from TI.Breakout board for the AXK770147G used to connect the logic board to the portrait dock connector daughterboard.Breakout board for the...
On my last punch list, I had a debug of my old build, and soldering a new build, to confirm the main double demux structure, which reads the sensors and runs the motors. So I took apart hop along and found some of the solder joints from...