Luca wrote a short tutorial on how to develop a small website that gets data from Arduino: In this tutorial, I’m going to show how to develop a small website that gets data from Arduino (using your ethernet shield), stores … Read more
We route all our PCBs manually instead of using an autorouter. This can be a tedious job sometimes, but we think it gives the best results. Sometimes we’re just about to finish a PCB, when we notice a MUCH better … Read more
A few days ago we posted about using soda pop cans as a DIY solder paste stencil. Alistair made a similar stencil about a year ago. He documented the process on his blog, so check it out if you want to … Read more
Here’s another custom Li Ion battery charger and holder. Yesterday we ran a post involving a custom battery holder for cell phone batteries, today it’s a holder for a more conventional 18650 type Li Ion batteries. To make a battery … Read more
MickM shares how he rebuilt his ESR meter: I just rebuilt my ESR meter. I found the schematic on the web, see ORIGINAL-schematic.png for author. This works well and is easy and almost free to build. It is analog (which I … Read more
Image by kaktuslampan: CC BY-SA Probably the most used device in out projects is the humble LED. They’re in almost every piece of equipment around us. While LEDs are simple to use, we get a surprising number of requests for … Read more
Hacromatic posted a tutorial on interfacing RFM12B radio data modules with the Bus Pirate: We’re working with some RFM12B RF modules, and needed to verify that they were working properly, so we used a Bus Pirate. We thought it’d make … Read more
From comments on our earlier Poision via effect in manufacturing post, Bearmos shared an article about via options in PCB manfacturing: On the PCB side of things, here’s an article from a PCB fab that goes over a couple of … Read more
Wardy gives some advice on how to improve your schematic and PCB design skills. His advice is to clone consumer products with available schematics. He provides links to a few examples to get you started. Using a realistic design will … Read more
Mats shared his method of aligning, and positioning all the LEDs on his clock in a perfect circle. He wrote an online PHP script that outputs Eagle commands that position, and rotate the LEDs depending on the parameters you enter … Read more
Keepout, and restrict polygons are powerful tools at your disposal as a PCB designer. Keepout is used when you don’t want components placed within an area, like edges of a board, or where your heatsink will be placed. Restrict polygons … Read more
As we picked up some experience with Eagle, we figured out that clicking icons and typing in commands slows down productivity. Eagle’s key-binding features make it faster to do common tasks by pressing a few keys, but for a real … Read more
A link to this guide was left on yesterday’s post about fixing library issues on Eagle 6.xx Linux versions. The difference to yesterday’s guide is that this one provides links to all the missing files, instead of having them packaged … Read more
Mike made a video on how to speedup SMD assembly. He uses air/vacuum powered tools to for pickup, and placement, as well as for solder paste dispensing. Don’t be put of by thinking of expensive air compressors and vacuum pumps, … Read more
As far as we know Eagle doesn’t offer an option for making plated slots. Here are two hacks we found on the subject. Check out our previous tutorial on building footprints in Eagle. You can also skim through our Cadsoft_Eagle … Read more
Most chips have multiple power pins that need to be connected to the same power supply, but Eagle doesn’t allow you to give 2 different pins the same name. This short tutorial shows how to get around this and name … Read more
We are off to the Bay Area Maker Faire, and we’d like to share some of the tips we picked up on our previous visit there. Below are our tips for both visitors, and participants. If you are in the … Read more
Raj wrote a tutorial on how-to implement servo control on PIC16F microcontrollers. The article starts off with some servo theory, and is followed with an open source practical example. A servo motor is a special geared DC motor equipped with … Read more
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