5ADBEEF

7 ms·

1.
by 5ADBEEF 1y ago
I don’t think most have this experience. Zephyr is the future.
2.
by 5ADBEEF 1y ago
Zephyr provides an open source implementation of all layers of the BLE stack. The radios of some devices are documented extensively, Nordic nRF5 devices are probably the best example. The Bluetooth SIG requires that you qualify your device
3.
Study of USB2 signal robustness under varying conditions [video](youtube.com)
11 points by 5ADBEEF 1y ago|1 comments
4.
by 5ADBEEF 2y ago
the average defense job is the exact opposite of fulfilling and meaningful
5.
by 5ADBEEF 2y ago
Be aware, per erratum 9, that you’ll need to include external pull-downs instead of using the internal ones
6.
by 5ADBEEF 2y ago
Anybody notice that the example for their shell is using the Zephyr shell subsystem? Very cool that it's using Zephyr!
7.
Zephyr: Implementing a Device Driver for a Sensor(bootlin.com)
19 points by 5ADBEEF 2y ago|0 comments
8.
by 5ADBEEF 2y ago
anybody doing new BLE products has a 50/50 shot of using Zephyr in current year. I think the real benefit of Zephyr is that the wheel has already been invented, no need to do it yourself
9.
by 5ADBEEF 2y ago
the pi pico is 100% supported in Zephyr. https://github.com/zephyrproject-rtos/zephyr/tree/main/board... Did the author not check the docs? https://docs.zephyrproject.org/latest/boar
10.
by 5ADBEEF 2y ago
RF dongles almost always are Nordic Semiconductor parts and they use their proprietary (but open) protocol called Enhanced Shockburst. The minimum latency of BLE is 7.5ms (fastest connection interval in the spec) while ESB can be in the 100
11.
by 5ADBEEF 2y ago
https://www.popsci.com/deadly-splinter-antibiotic-resistance...
12.
by 5ADBEEF 2y ago
Zephyr would also be well suited for something like this. Anyone aware of any projects that do something similar with Zephyr?
13.
by 5ADBEEF 2y ago
I am not certain that this provides a lot of benefit. Worth discussion. Feels like most engineers just copy the application circuit nowadays though. https://www.signalintegrityjournal.com/articles/1589-the-myt...
14.
by 5ADBEEF 2y ago
This is what Wirepas is doing with their mesh network. They have a DECT version coming soon
15.
by 5ADBEEF 2y ago
Not an unauthenticated mesh. This will be up user implementation iirc
16.
by 5ADBEEF 3y ago
Best option is PoE and battery back up (if they elect to pull the meter)? I guess they could also cut your cable. Or forget all of that and get a nice pup
17.
by 5ADBEEF 3y ago
the crustier EEs among us have been burned by downloaded symbols. It’s often better to make your own symbols and footprints unless you have a high quality source from the manufacturer. Even then, some symbols are not organized in a logical
18.
by 5ADBEEF 3y ago
Why just accept that time passes?
19.
ECE3400 Analog Electronics (2022) [video](youtube.com)
2 points by 5ADBEEF 3y ago|0 comments
20.
by 5ADBEEF 3y ago
If you’re into electronics and can sweep aside some crusty EE opinions, the EEvblog forums are quite fun and informative.
21.
by 5ADBEEF 3y ago
I warn you that much of controls is very very boring. PLCs w/ ladder logic in most places. Embedded devs have better devex than controls engineers…
22.
by 5ADBEEF 3y ago
I’ve watched all of the skibidi toilet episodes. It’s really the same as 2000s or 2010s gmod YouTube poop, it just managed to find a larger audience.
23.
by 5ADBEEF 3y ago
Juniors are hyper-online, accustomed to COVID classes etc. Maybe it is methods of training that need to shift.
24.
by 5ADBEEF 3y ago
Yes, this fix was mentioned in IN-142 from Nordic.
25.
by 5ADBEEF 3y ago
Nordic announced a processor w/ Arm + RISC-V cores on the same die. It's already happening!
26.
by 5ADBEEF 3y ago
There is a companion chip, the nRF7002 which supports Wi-Fi. Not integrated into a SoC though but probably way lower power consumption than an ESP. Not sure on the difference in performance between the two competitors Wi-Fi solutions
27.
by 5ADBEEF 3y ago
There is a Zephyr BLE stack that can be used as well as a SoftDevice stack but SoftDevice isn't a huge binary anymore, much more modular to save code space.
28.
by 5ADBEEF 3y ago
The famous APProtect bug was patched in a silicon rev IIRC. Unless you're thinking of another exploit
29.
by 5ADBEEF 3y ago
You don't hear as much about LoRa as other wireless protocols because the use cases are less "sexy," in my opinion. The people who grew excited about LoRa or LoRaWAN are...electric and water metering engineers. Cool stuff, ve
30.
by 5ADBEEF 3y ago
it is the fault of freer money for education and greater expectations for amenities at colleges. higher education should be a measured decision where you literally calculate ROI on the cost of your degree

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