Each step of the project has a parts list, assorted assembly photos/videos and testing procedures. The parts list is as complete as possible, with suggested parts and cost. Many parts can be sampled for free or low cost, but this is starting to become harder and harder. Parts may have to be purchased in larger quantities than necessary, and I always suggest getting twice as many parts as you'll need in case something goes wrong.
Total cost should be ~$25 for PCBs and $100 for parts (if you sample chips) or $135 (buy all parts & use a nice lithium ion battery).
Corrections, updates and suggestions are very welcome should be posted to the forum.
There are a few tools that are required for assembly. If you don't have them, now would be a good time to borrow or purchase them. They are very very handy whenever assembling/fixing/modifying electronic devices!
|Soldering Iron Because of the many small parts, a WES-50/WES-51 and the other ~$100 Wellers is minimal equiptment. Get the finest pitch tip you can. Alternately you can use solderpaste and a hotplate. Although eventually you will need to solder something on the other side. A low quality (ahem, $15 radioshack) iron is not suitable.|
|Solder Rosin core 60/40 or 63/37 0.025". Get high quality, fine solder. Silver solder is OK too but not necessary. (Kester 23-6337-0007)|
|«no image … yet»||Solder Paste. Good for soldering the TSSOP parts. Kester 57-3901-5403|
|(De)solder braid. For fixing solder bridges. Techspray 1814-5F.|
|«no image … yet»||Power Supply – It can be a thousand dollar arbitrary waveform generator, or a 9V hooked up to an LM317 & potentiometer. Whatever, just make sure you can get ~3-4 V out of it, for testing.|
|Multimeter/Oscilloscope – A hand-held meter, at least, is necessary. A scope will help you even more with debugging & analyzing the circuit. 10MHz is minimal. Most of the frequencies here are either 10MHz and lower or 1GHz and higher, so no point using something -really good-|
|Spectrum Analyzer – In theory, this is not necessary to construct, with the PLL. But still an incredibly useful tool for RF work. BK Precision 2650 3.3GHz is not a bad choice.|
|«no image … yet»||Needle-Nose Pliers – For bending leads, etc.|
|«no image … yet»||Tweezers – For holding fine components steady while soldering. Wiha #44501 from digikey is good.|
|Flush/Diagonal Cutters – Not needed that often, but handy anyways.|
|Board Holder – The panavise jr. has been perfect.|
|Good light preferrably with Magnifying glass – Ideal for examining board for solder bridges, etc. Unicorn Electronics|
Download the gerbers and/or board files and generate the (tiled) gerbers you want. The files are in Eagle format and are small enough to be opened by the 'freeware' version (Mac/Win/Linux). Then send them off to your favorite board house. I have a seperate page all about this sort of thing.
In a week, the PCBs arrive. Hooray!
Depanelize them with tin snips, shears, band saw, etc. (if not depanelized by manufacturer)
Print out the parts lists, placement diagrams, and schematic.
OK now you are ready to go!
Original Page: Wave Bubble - Make - Preparation