Boards for prototypes

For low frequency projects, a fast way to prototype is using a bare PCB and scratch some dividers that allow “manhattan” style prototyping. I am especially very fond of this prototyping technique and I believe that PCB design should be avoided in the early stages of prototyping. Jim Williams was an artist in such designs. …
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A quickie on USB Endpoints

Endpoints are essentially the USB addresses that USB data is sent to or from. Now, here is the trick. The transfer direction naming convention is a bit unintuitive. Contrary to — at least — what I imagined, an IN Endpoint will transfer USB data from the USB device to the host PC, while an OUT Endpoint …
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SCPI on Mac

Some more days passed and some more finishing touches added to my MacSCPI app. It is entirely dependent on hooking the device via the USBTMC driver, but it works fine and is stable: I had some problems with buffer padding and the output it is still not 100% gibberish–free , but I assume I have to play with …
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USBTMC driver for Mac

After some head banging, I finally managed to send SCPI commands from my Mac to my Agilent (Keysight) DSOX2002A. I’ve worked on this since december last year. Almost a year, but I did not spent a sustained amount of effort. I did it just during my free time. I still have a day job that …
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Writing serial drivers for OS X (1)

At least one thing can be improved on Mac Dev Center: the code sample repository. I am not talking about documentation. In this particular case, there’s not much new to write about. The I/O Kit documentation (grab the pdf while it is stil there) is sufficient. On the shelves are tons on books about C and …
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Rigol Spectrum Analyzer !

I’ve kept drooling for this for several years. Today I finally got it ! Moreover, it seems it is fully-option enabled, which is kinda weird because I haven’t ordered for such. However, here it is: the Rigol DSA 815 TG Spectrum Analyzer with tracking generator. This will enhance my lab’s capabilities in RF electronics and …
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C#, SCPI and Keysight (Agilent) DSO-X 2002A

This post is a relic. The initial draft dates back in January 19, 2013. And was left as draft ever since. Past couple of days I was busy — among other things — learning a new programming language, C#. 🙂 Ok, here’s the deal: my scope (KeysightAgilent DSO-X 2002A) is SCPI–compliant device. If you remember, the reason behind …
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…and the order from DigiKey

Ok. Today was THE mail day. I’ve received both my electronic parts orders, the one from RF Parts and the one from DigiKey, that I placed several weeks ago (but had some issues with a couple of backordered items). Ta–Da ! This is it: A lot of bags and goodies. Not to mention the pleasure of sorting …
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My first order from RF Parts…

I was looking for a RF power module for my APRS beacon project and stumbled upon RF Parts. They are somehow of a niche–oriented online electronic part retailers, specialised on RF and — it seems — mostly on Ham Radio RF parts. I placed my order for two Mitsubishi power RF MOSFET Amplifier Modules and the package …
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