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Signed and encrypted email
It’s surprising that S/MIME is not more widely used. It offers authentication, so that you can be sure the email comes from the person that email address belongs to, which will kill all (spear-)...
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Garbage collection for JET
The JET project is based on a dataflow engine, which needs to run on a variety of hardware, in particular fairly low-end µCs.But dataflow requires passing messages around, and I want these messages to...
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Data structures for JET
Another post about the JET project. This time around, I’m trying to come up with simple data structures to get the job done, i.e. supporting a PureData-like dataflow engine, able to fit in very small...
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Data structures for JET, cont'd
I made some good progress on the design of an early prototype forlast week’sJET data structure design. So far, it’s all working out well (I’m coding this in C), with some useful refinements:the gadget...
View ArticleMeet the Tinker Pico (again)
It’s time to get some new hardware out the door, which I’ve been doodling with here at JeeLabs for quite some time, and which some of you might like to tinker with as well. The first new board is the...
View ArticleArduino IDE w/ LPC824
What will it take to support the LPC824 µC, i.e. the Tinker Pico, from the Arduino IDE? As the Arduino IDE has been evolving and growing over the years, more and more µC platforms have been added -...
View ArticleIDE w/ LPC824, part 2
Let’s get that upload going. Remember, this is about adding a “hardware platform” to the Arduino IDE so it can compile and upload files to a Tinker Pico, based on the LPC824 µC. There are two parts to...
View ArticleMaking a sharp turn
During my tinkering over the past two weeks, I hit a snag while trying to hook up the LPC824 µC to the Arduino IDE. Nothing spectacular or insurmountable, but still… This week, I have two articles for...
View ArticleThe world of STM32
As announced last week, I’ll be switching (pouring?) my efforts into a new series of µC’s for a while, so there’s quite a bit of work ahead to get going, and I really don’t want to dwell too much on...
View ArticleTalking to an STM32
When dealing with ARM µCs and boards based on them, there’s always one big elephant in the room: how to upload software to them, and how to talk to them via serial or USB. The available options,...
View ArticleProgrammer PCB Triple Play
To follow up on last week’s upload articles, I’m going to turn a couple of these boards into Black Magic Probe programmers: From left to right: an STM Nucleo F103RB (any Nucleo will do, though), a...
View ArticlePi-based STM32F103 development
There are many ways to experiment with embedded development, which is what the Arduino IDE really is all about. But before diving more into using the Arduino IDE with STM32 µCs, I’d like to mention...
View ArticleA fingernail vs a moon lander
Small microcontroller chips, modern laptops/desktops - the range of computing power is enormous nowadays. So enormous, that it can be pretty hard to grasp the magnitude. This week, I’m going to do some...
View ArticleA diversion into FPGAs
Last week’s exploration of “processing with limited computing power” a few decades ago has led me into another direction which turned out to be mesmerising and addictive… All due to a chip called a...
View ArticleSwitching to a new server
As you may know, the various websites here at JeeLabs are served locally. Houten offers very fast Fiber-To-The-Home connections, my ISP (XS4ALL) is excellent, and I don’t see the point of putting...
View ArticleTying up 2015's loose ends
As the end of 2015 is approaching and now that the new server setup has been completed, it’s time to clean up some remaining loose ends. Spring cleaning is early, here at JeeLabs! Next week will be a...
View ArticleTurning the page on 2015
As the last few days of 2015 pass, I’d like to reflect on the recent past but also look forward to things to come. For one, the JeeLabs weblog is now thriving again: the new weekly post-plus-articles...
View ArticleGetting (a bit more) organised
More spring cleaning. This has been keeping me busy for a couple of days, so I thought I might as well write about the issues and solutions I’ve found for them: Sh(r)edding those CDs & DVDs - Wed...
View ArticleArduino shields... or not
Once upon a time, when the Arduino was still young, someone made a mistake with the headers on its PCB, placing one of the headers off the standard 0.1” placement grid - as used by just about...
View ArticleOvercoming JET lag
Long-time readers of this weblog know that the topics here have always been all over the map - electronics, digital design, embedded firmware, but also trying out new stuff, getting organised,...
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