Viewing profile — Ductapemaster

The 8266 has no flash readout protection, and the UART is exposed on a programming header. It was very easy to dump the firmware.

I looked into it and the channel sounding approach isn't yet ready. Will need the new iOS as well as some firmware work from Nordic's side.

No need — I simply plugged into the exposed programming header on the gateway. The sensor has an Atmel SAMD part which I assume has the security bit set. I didn't need to dump that…

I am planning a write up once I get it working. I'd be happy to share. My setup is a logic analyzer tap on the SPI bus between 8266 and the RFM69 on the bridge device to log raw tr…

Interesting timing, I have spent the last week with Claude reverse engineering the on-air protocol and I'm getting pretty close to building a secondary "listener" receiver that wil…

Nordic has newly-released silicon that supports Aliro using Channel Sounding, meaning a UWB chipset becomes optional. Also, NFC is supported directly. https://www.nordicsemi.com/Pr…

This is cool! I have recently been building a "life admin" system that is focused around keeping track of bills and insurance reimbursements, and I am currently extending it to sup…

In simple terms, this works by doing an XOR on the outputs and if they disagree, performing a fault recovery. There's also space systems that use 3 processors and a majority vote f…

It's not about the whole microcontroller having less than 64kB of memory - it's that each WASM module has a minimum memory size of 64kB, regardless of how much it actually requires…

I use this app on all my Macbooks — it's great!

I've always wanted a Shaper Origin, but the cost and subscription fee required for accessing some features always turned me off. I don't need it for anything other than fun hobby p…

Sadly, Useful Sensors seems to have pivoted to other edge AI tech and no longer sells this or their person detector.

I spent a LOT of time on this website as a 90's kid. One of many that inspired me to get an EE degree. Projects like this always felt like some incredible magic, and came with an a…

Thank you (and the GP) for the correction! I'll admit this lesson came to me a decade ago and I am speaking to a rule of thumb I developed as a result. Time to update my knowledge …

On your note about capacitor sizes — at my first EE job, my boss taught me about capacitance-voltage derating[0] for ceramic capacitors and it was quite the revelation. There is a …

I live in Alameda and this place is such a local gem. The owners are really genuine people too. Great place to spend some time! They also own a whole warehouse out at Alameda Point…

As a former Fit owner, I wish I had thought of this! The AC was really bad. We did a lot of road trips and it really struggled out on the long desert highway stretches.

Just op-amps and FETs for the active components. The design from my memory was: - To get position, 2 integrators were applied to an adjustable voltage representing gravity. - The F…

In my upper-division analog electronics class (the hard one), our lab project throughout the quarter was to build an analog computer that simulated the physics of a bouncing ball. …

That's really interesting. For me, I very much do NOT enjoy the taste of truffles in restaurant dishes because it's often so overbearing. I just don't find the flavor interesting, …

This is a great resource for why Starship is groundbreaking. So much so, it’s not even really comprehensive to the existing space-industrial complex. https://caseyhandmer.wordpress…

Check out this talk: https://www.youtube.com/watch?v=dF_9YcehCZo The source code isn't hiding in a repo somewhere for security reasons — it's spread around on various pieces of pap…

It's not quite that simple: https://carnegiemuseums.org/magazine-archive/1997/mayjun/dep... However, one misnomer remains true — a Strawberry isn't actually a 'berry'.

Awesome! That is a vastly more complex machine and action than I was expecting. Seems like there is more to the process than just flipping it over.

Unfortunately since it’s an active feature it requires power, meaning any wired headset will require a battery or other power source. A wired headset plus my mixer gives me an oppo…