📟 Watchy CO₂ Sensor Watch
Open-source watch/wearable CO₂ sensor for COVID safety
The relationship of CO₂ sensing to COVID safety can be found at a number of places. Briefly CO₂ levels measure the amount of human breath in your vicinity, which is a reasonable proxy for the number of particles of an infectious airborne pathogen potentially in your vicinity.
There are some caveats, mostly related to indoor air filtration systems which can potentially remove (very small) virus particles but not (much smaller) CO₂ molecules, but it's still a reasonably interesting parameter to monitor when you're in a new or unusual setting.
The project is based on the Watchy (ESP32-powered open-source E-Paper Watch).
More information...
#projects #esp32
Open-source watch/wearable CO₂ sensor for COVID safety
The relationship of CO₂ sensing to COVID safety can be found at a number of places. Briefly CO₂ levels measure the amount of human breath in your vicinity, which is a reasonable proxy for the number of particles of an infectious airborne pathogen potentially in your vicinity.
There are some caveats, mostly related to indoor air filtration systems which can potentially remove (very small) virus particles but not (much smaller) CO₂ molecules, but it's still a reasonably interesting parameter to monitor when you're in a new or unusual setting.
The project is based on the Watchy (ESP32-powered open-source E-Paper Watch).
More information...
#projects #esp32
🖐🏻 Tactile Sensing Gets a Boost for AI Systems Thanks to Open-source Research
The new announcement from Meta this week was ReSkin, a new open-source tactile sensing "skin" solution. ReSkin is a deformable elastomer designed with embedded magnetic particles.
According to the publication, when this material deforms, it causes a change in its magnetic field, which is perceptible by nearby magnetometers. The system then uses AI-based techniques to interpret this data into relevant information such as contact location and applied force.
All together, ReSkin comes out to be 2-3 mm thick, has a lifetime of over 50,000 interactions, has a temporal resolution of up to 400 Hz, and has a spatial resolution of 1 mm with 90% accuracy.
ReSkin offers several unique value propositions. First off, unlike other skin-based sensors, ReSkin is generalizable thanks to a novel self-supervised learning algorithm that allows the sensors to auto-calibrate without manual intervention.
#articles #sensors #news
The new announcement from Meta this week was ReSkin, a new open-source tactile sensing "skin" solution. ReSkin is a deformable elastomer designed with embedded magnetic particles.
According to the publication, when this material deforms, it causes a change in its magnetic field, which is perceptible by nearby magnetometers. The system then uses AI-based techniques to interpret this data into relevant information such as contact location and applied force.
All together, ReSkin comes out to be 2-3 mm thick, has a lifetime of over 50,000 interactions, has a temporal resolution of up to 400 Hz, and has a spatial resolution of 1 mm with 90% accuracy.
ReSkin offers several unique value propositions. First off, unlike other skin-based sensors, ReSkin is generalizable thanks to a novel self-supervised learning algorithm that allows the sensors to auto-calibrate without manual intervention.
#articles #sensors #news
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🎚 Raspberry PI Zero 2W: What does the silicon contain?
Author of the article used special tools and chemicals for having a closer look at how new Raspberry board is built.
It's not just a single integrated circuit, but rather 3 pieces of silicon and a bunch of gold wires which tied everything together. Looks like developers have moved away from Package-on-package and have gone for the even more sophisticated multi-chip packaging.
In this technique they take the substrate (basically a circuit board with super fine traces), then they put down the DRAM, a spacer... which is simply a bit of un-etched silicon, and then the SOC. It's all connected together with gold bond wires and encapsulated in epxoy.
Advantages of this is cost, the package is often as expensive as the silicon it contains. They have gone down from two packages used on the "Pi zero" where they stacked the DRAM on top of the SOC to one.
#articles #boards
Author of the article used special tools and chemicals for having a closer look at how new Raspberry board is built.
It's not just a single integrated circuit, but rather 3 pieces of silicon and a bunch of gold wires which tied everything together. Looks like developers have moved away from Package-on-package and have gone for the even more sophisticated multi-chip packaging.
In this technique they take the substrate (basically a circuit board with super fine traces), then they put down the DRAM, a spacer... which is simply a bit of un-etched silicon, and then the SOC. It's all connected together with gold bond wires and encapsulated in epxoy.
Advantages of this is cost, the package is often as expensive as the silicon it contains. They have gone down from two packages used on the "Pi zero" where they stacked the DRAM on top of the SOC to one.
#articles #boards
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📟 Top-5 Cool Projects for TTGO T-Display written in Arduino IDE
Short compilation of projects and their git repositories. Can be used with any board supporting Arduino IDE.
😹 1. Internet Radio.
😹 2. Linear Function Calculator.
😹 3. Simple Stopwatch.
😹 4. One Button Game.
😹 5. Weather Station.
Keep in mind that the project of Internet Radio might require additional audio library.
#projects #arduino
Short compilation of projects and their git repositories. Can be used with any board supporting Arduino IDE.
Keep in mind that the project of Internet Radio might require additional audio library.
#projects #arduino
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📊 Engineering is Still a Great Job
As revealed in ElectronicDesign's 2021 Salary Survey, science and engineering jobs continue to be fun and profitable.
The most engineers and programmers want to stay in their jobs and would recommend them to others based on the results of our recent salary survey. The majority of engineers and programmers were satisfied with their current position, which is a good indication they chose the right profession. Likewise, the survey results show that more than 90% recommend engineering as a career choice to others.
Job satisfaction seems to match well with retention or it may be the sign of the times. Not a lot of engineers or developers are actively searching for a new position. Still, a substantial portion are keeping their eyes open for opportunities that may arise.
The outlook for engineers who want to stay put or move into new positions looks good, with most companies maintaining or increasing the number of engineers or developers on their staff.
#articles #work
As revealed in ElectronicDesign's 2021 Salary Survey, science and engineering jobs continue to be fun and profitable.
The most engineers and programmers want to stay in their jobs and would recommend them to others based on the results of our recent salary survey. The majority of engineers and programmers were satisfied with their current position, which is a good indication they chose the right profession. Likewise, the survey results show that more than 90% recommend engineering as a career choice to others.
Job satisfaction seems to match well with retention or it may be the sign of the times. Not a lot of engineers or developers are actively searching for a new position. Still, a substantial portion are keeping their eyes open for opportunities that may arise.
The outlook for engineers who want to stay put or move into new positions looks good, with most companies maintaining or increasing the number of engineers or developers on their staff.
#articles #work