GNURadio 3.7, HackRF, Python 3.8, Win 10, QT vs WX

So a lot has changed since I last fired up my HackRF. GNURadio hit version 3.8, so did Python. GNURadio deprecated WX GUI and moved to QT GUI elements. My two go-to test flow graphs didn’t work anymore on my Windows 10 machine. So here is what I changed: FM Radio Receiver In the osmocom…

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Replacing BusPirate with GreatFET

I am starting to tinker with the GreatFET as a possible candidate to be included in my toolbox of embedded development tools. I2C is a protocol I spend a lot of time messing around with, so that provided a good test case for trying out the GreatFET in a real-world situation. As of the GreatFET’s…

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Tinkering with Arduino’s IoT Cloud

Another day (of quarantine), another project. Today explore the latest version of the Arduino IoT Cloud (beta). For the hardware we have the following: MKR 1010 MKR ENV Shield ST LPS22HB : atmospheric pressure ST HTS221 : temperature and humidity VISHAY TEMT6000 : Lux of the ambient. VISHAY VEML6075 : UltraViolet wavelengths A / B…

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Controlling a NodeMCU from the Browers

One of the silver linings of coronavirus quarantine has been time to tinker with development boards long ago acquired yet rarely tinkered with. Such is NodeMCU. I am interested in self-contained devices that rely on little support infrastructure yet offer lots of functionality. So one project I have tackled was the ability to remotely and…

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Saleae Logic Analyzer and I2C Addresses

One of the challenging head-scratchers I came up against in learning embedded electronics was analyzing communications that utilized the I2C protocol. One challenge was realizing there was 7-bit and 8-bit address implementations. Not realizing this made for a very long debugging session. It was one those sessions where everything was working, but from my analysis,…

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Factory vs. Warehouse Brain; the Generalist and the Specialist

This past week as I took an evening stroll with my maker-in-training teenage daughter we stumbled up the topic of what most would call the ‘impostor syndrome’. She, like myself, have a plethora of interests. They run the gambit from woodworking to embedded electronics, from cosplaying to drawing. However, she feels like she is not…

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The Case for Continuously Upgrading Your Systems

It is unlikely the world will emerge from the COVID-19 pandemic completely the same as it was before the virus swept the planet. No doubt this is almost purely a story of human tragedy, but as an engineer, my ears were piqued to hear how antiquated technology was contributing to the slow response to alleviate…

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Resources for Makers Who Want To Help Save The World

The COVID-19 pandemic has catalyzed the Maker Movement into embracing their role in emergency response. Like ham radio operators before, Makers are helping governments, NGOs and non-profits fill critical skill and manufacturing gaps that are exacerbated when disaster strikes. From 3D-printing face shields and sewing face masks; to MacGyver’ing a massive number of ventilators, makers…

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Green Shoe Garage @ Consumer Electronics Show 2020

My company, Green Shoe Garage, made it’s long-awaited CES debut this year. Along with partners Mouser Electronics, Digi, and Medium One; launched TANKFULL: An IoT Experimentation Platform. An excerpt: ‚ÄúTankfull consists of two water tanks equipped with submersible liquid pumps and liquid-level sensors. The demonstration platform enables an operator to control the flow of water…

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