📰 As Chips Scale Down, Leakage Current Goes Up. How Are Developers Responding?
As chips scale down, leakage current—and specifically subthreshold leakage—become a prominent source of power consumption in ICs. When developers scale down transistors, they also tend to scale down supply voltages to minimize dynamic power consumption.
However, scaling down supply voltage negatively affects circuit performance with respect to speed. A common way to overcome this is to lower the threshold voltage accordingly. As designers lower the threshold voltage, they decrease the subthreshold region—the result being more subthreshold leakage at more frequent intervals.
This is why developers have mostly stopped scaling down supply voltages: at a certain point, the increase in subthreshold leakage is not worth the decrease in dynamic power consumption.
More information...
#news #articles #electronics
As chips scale down, leakage current—and specifically subthreshold leakage—become a prominent source of power consumption in ICs. When developers scale down transistors, they also tend to scale down supply voltages to minimize dynamic power consumption.
However, scaling down supply voltage negatively affects circuit performance with respect to speed. A common way to overcome this is to lower the threshold voltage accordingly. As designers lower the threshold voltage, they decrease the subthreshold region—the result being more subthreshold leakage at more frequent intervals.
This is why developers have mostly stopped scaling down supply voltages: at a certain point, the increase in subthreshold leakage is not worth the decrease in dynamic power consumption.
More information...
#news #articles #electronics
🎙 Google releases the source code for Lyra low bitrate speech codec
Google has now released the Lyra source code, written in C++ for optimal speed, efficiency, and interoperability and relying on both the Bazel build framework and the GoogleTest framework
Whereas traditional codecs are based on digital signal processing (DSP) techniques, the key advantage for Lyra comes from the ability of the generative model to reconstruct a high-quality voice signal.
More information...
#news #software #machine_learning
Google has now released the Lyra source code, written in C++ for optimal speed, efficiency, and interoperability and relying on both the Bazel build framework and the GoogleTest framework
Whereas traditional codecs are based on digital signal processing (DSP) techniques, the key advantage for Lyra comes from the ability of the generative model to reconstruct a high-quality voice signal.
More information...
#news #software #machine_learning
🔋 Fusion Power Plant for Generation of Net Electricity
The scientists from DIII-D have designed a full “compact nuclear fusion plant” concept and detailed the plans in a new paper in Nuclear Fusion.
In simulations, their 8-meter-wide pressurized plasma fusion concept is powerful enough to generate 200 megawatts (MW) of net electricity after the energy cost of the fusion itself.
This would be the very first fusion power plant to generate net electricity. The current best ratio is an output of 67 percent of the total energy required to power the reactor.
The researchers are careful to emphasize their paper is still very abstract. They want it to serve as a guide for the near future of pressurized plasma research, a sort of road map to whatever the next steps are. And while a traditional tokamak reactor that produces net power is still at least 9 to 14 years away, a pressurized tokamak is almost definitely even further out.
More information...
#news #articles #electronics #energy
The scientists from DIII-D have designed a full “compact nuclear fusion plant” concept and detailed the plans in a new paper in Nuclear Fusion.
In simulations, their 8-meter-wide pressurized plasma fusion concept is powerful enough to generate 200 megawatts (MW) of net electricity after the energy cost of the fusion itself.
This would be the very first fusion power plant to generate net electricity. The current best ratio is an output of 67 percent of the total energy required to power the reactor.
The researchers are careful to emphasize their paper is still very abstract. They want it to serve as a guide for the near future of pressurized plasma research, a sort of road map to whatever the next steps are. And while a traditional tokamak reactor that produces net power is still at least 9 to 14 years away, a pressurized tokamak is almost definitely even further out.
More information...
#news #articles #electronics #energy
🗜 3D-printed Multi-Turn Potentiometer (Using Worm Gear Mechanism)
We, tinkerers, have used potentiometers whether it is of a buck-boost converter or simple audio amplifier, and at some point, we struggled with controlling it precisely.
We can get trim pots but setting those regularly is not so easy. Also, there are multi-turn potentiometers available in the market but they are generally expensive and only available in a limited range of values.
You will learn how to make a simple mechanism that can be used to turn any potentiometer into a multi-turn potentiometer.
More information...
#projects #3d_modeling #electronics
We, tinkerers, have used potentiometers whether it is of a buck-boost converter or simple audio amplifier, and at some point, we struggled with controlling it precisely.
We can get trim pots but setting those regularly is not so easy. Also, there are multi-turn potentiometers available in the market but they are generally expensive and only available in a limited range of values.
You will learn how to make a simple mechanism that can be used to turn any potentiometer into a multi-turn potentiometer.
More information...
#projects #3d_modeling #electronics
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😎 Augmented Reality glasses by STMicroelectronics
ST introduced MEMS micromirror devices by leveraging its extensive experience in MEMS technologies to design, develop and manufacture micro-electro-mechanical devices and electronic control systems to accurately and precisely rotate reflective surfaces along rotational axes.
MEMS micromirror solutions are typically used in laser beam scanning systems (LBS) to project visible images or infrared patterns. These solutions work by deflecting laser beams emitted from laser diodes to project images onto the required field of view. The beam deflection is generally performed using a combination of two mirrors rotating on perpendicular axes.
This solution brings several benefits compared to its competitive technologies:
▫️ Extended depth of field
▫️ High persistency and low latency
▫️ High brightness, ideal for smart glasses
▫️ Scalable field of view
▫️ Compactness and power efficiency
▫️ Light weight for the overall optical light engine
More information...
#news
ST introduced MEMS micromirror devices by leveraging its extensive experience in MEMS technologies to design, develop and manufacture micro-electro-mechanical devices and electronic control systems to accurately and precisely rotate reflective surfaces along rotational axes.
MEMS micromirror solutions are typically used in laser beam scanning systems (LBS) to project visible images or infrared patterns. These solutions work by deflecting laser beams emitted from laser diodes to project images onto the required field of view. The beam deflection is generally performed using a combination of two mirrors rotating on perpendicular axes.
This solution brings several benefits compared to its competitive technologies:
▫️ Extended depth of field
▫️ High persistency and low latency
▫️ High brightness, ideal for smart glasses
▫️ Scalable field of view
▫️ Compactness and power efficiency
▫️ Light weight for the overall optical light engine
More information...
#news
📷 2 Axis controllable platform for ESP32-CAM for streaming video
In this project, we’ll attach the ESP32-CAM to a pan and tilt stand with two SG90 servo motors. With a pan and tilt camera stand, you can move the camera up, down, to the left, and the right— this is great for surveillance.
The ESP32-CAM hosts a web server that shows video streaming and buttons to control the servo motors to move the camera.
More information...
#projects #camera #esp32 #control #IoT
In this project, we’ll attach the ESP32-CAM to a pan and tilt stand with two SG90 servo motors. With a pan and tilt camera stand, you can move the camera up, down, to the left, and the right— this is great for surveillance.
The ESP32-CAM hosts a web server that shows video streaming and buttons to control the servo motors to move the camera.
More information...
#projects #camera #esp32 #control #IoT
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🗜 Drill Depth Display with Gyro Sensor
If you have to drill a certain depth for a project, you need a bench drill with depth display. See how simple it works in this project.
Most bench drills have a ruler with an arrow for reading. The success of the drilling depends on how accurately you can read the desired position. In this Arduino project I present an alternative proposal: A drilling depth display with a gyro sensor and 7-segment display with Arduino support.
More information...
#projects #arduino #display #sensor
If you have to drill a certain depth for a project, you need a bench drill with depth display. See how simple it works in this project.
Most bench drills have a ruler with an arrow for reading. The success of the drilling depends on how accurately you can read the desired position. In this Arduino project I present an alternative proposal: A drilling depth display with a gyro sensor and 7-segment display with Arduino support.
More information...
#projects #arduino #display #sensor
🔌 The Dawn of Wireless Electricity
Wireless electricity sounds like science fiction, but the technology is already realized and primed for a utility-scale case study. And in this first-of-its-kind pilot program, Powerco—New Zealand’s second-largest electricity distributor—will test Emrod technology in 2021.
The companies plan to deploy the prototype wireless energy infrastructure across a 130-foot expanse. To make it possible, Emrod uses rectifying antennas, (“rectennas”), that pass microwaves of electricity from one waypoint to the next: a solution well-suited to New Zealand’s mountainous terrain.
Specialized square elements are mounted on intervening poles to act as pass-through points that keep the electricity humming along, and a broader surface area “catches” the entire wave.
By eliminating the need for long stretches of traditional copper wiring, it can bring power to these regions, which can’t afford the kind of infrastructure that supports the power grid.
More information...
#news #energy
Wireless electricity sounds like science fiction, but the technology is already realized and primed for a utility-scale case study. And in this first-of-its-kind pilot program, Powerco—New Zealand’s second-largest electricity distributor—will test Emrod technology in 2021.
The companies plan to deploy the prototype wireless energy infrastructure across a 130-foot expanse. To make it possible, Emrod uses rectifying antennas, (“rectennas”), that pass microwaves of electricity from one waypoint to the next: a solution well-suited to New Zealand’s mountainous terrain.
Specialized square elements are mounted on intervening poles to act as pass-through points that keep the electricity humming along, and a broader surface area “catches” the entire wave.
By eliminating the need for long stretches of traditional copper wiring, it can bring power to these regions, which can’t afford the kind of infrastructure that supports the power grid.
More information...
#news #energy
📘 Spying Wi-Fi on the Raspberry Pi Zero
Tutorial for Wi-Fi penetration checking, so we'll go over the features and how to use the Pi Zero correctly in various situations
The Raspberry Pi Zero is a very versatile device that can offer a wide range of features for a Raspberry Pi at its low end. We'll look at how to integrate more features and what you get as a result.
This isn't a "how to" tutorial for Wi-Fi penetration checking, so we'll go over the features and how to use the Pi Zero correctly in various situations.
More information...
#articles #raspberry #zero #wifi
Tutorial for Wi-Fi penetration checking, so we'll go over the features and how to use the Pi Zero correctly in various situations
The Raspberry Pi Zero is a very versatile device that can offer a wide range of features for a Raspberry Pi at its low end. We'll look at how to integrate more features and what you get as a result.
This isn't a "how to" tutorial for Wi-Fi penetration checking, so we'll go over the features and how to use the Pi Zero correctly in various situations.
More information...
#articles #raspberry #zero #wifi
💻 3D Printing Process Creates Objects Made of Both Liquid and Solid Materials
Typical plastic 3D printing processes turn liquids into solids. Now researchers have invented a way to integrate materials directly into the process to fabricate an object with both solid and liquid elements.
The method, invented by chemists at Martin Luther University (MLU), in Germany, paves the way for applications such as the incorporation of active medical agents in pharmaceutical products or the integration of luminous liquids in materials to provide damage monitoring, researchers said.
In addition to the examples they demonstrated, the team envisions other uses for the process. One could be to print battery parts, which tend to use combinations of both liquid and solid materials that are typically produced separately.
More information...
#articles #3d_modeling
Typical plastic 3D printing processes turn liquids into solids. Now researchers have invented a way to integrate materials directly into the process to fabricate an object with both solid and liquid elements.
The method, invented by chemists at Martin Luther University (MLU), in Germany, paves the way for applications such as the incorporation of active medical agents in pharmaceutical products or the integration of luminous liquids in materials to provide damage monitoring, researchers said.
In addition to the examples they demonstrated, the team envisions other uses for the process. One could be to print battery parts, which tend to use combinations of both liquid and solid materials that are typically produced separately.
More information...
#articles #3d_modeling
📟 E-Ink Tide and Weather Tracker
This project uses a Raspberry Pi for the brains and an E-Ink display for the information
The weather is pulled directly from OpenWeatherMap.org based on coordinates of the town/city. Using the free One Call API we get get current, forecast and historical weather data all in a single json file. This is the information that will be printed to the screen and used to determine the weather icons used.
Tide Data: Local NOAA station using
The information that is displayed is actually a single image file that is pushed to the screen meaning that a new image is created every time the program updates (currently set to 10 minute intervals).
More information...
#projects #display #IoT
This project uses a Raspberry Pi for the brains and an E-Ink display for the information
The weather is pulled directly from OpenWeatherMap.org based on coordinates of the town/city. Using the free One Call API we get get current, forecast and historical weather data all in a single json file. This is the information that will be printed to the screen and used to determine the weather icons used.
Tide Data: Local NOAA station using
noaa_coops python package which is an awesome tool that allows you to pull requested data through their easy API. First you have to identify the closest local station that collects the data we're after and get the station ID number.The information that is displayed is actually a single image file that is pushed to the screen meaning that a new image is created every time the program updates (currently set to 10 minute intervals).
More information...
#projects #display #IoT
💻 5 Tools Embedded Developers Should Use Daily
The tools that we use as developers can make a dramatic difference in the speed, quality, and overall cost of the software we develop. Here are five tools that I’ve found to be very helpful.
▫️ Saleae Logic Analyzer: It can even perform an analog sampling on the signal which helps ensure the analog signal as well as the digital logic look as they should.
▫️ Percepio Tracealyzer: A tracing tool allows developers to see the transitions into and out of tasks, monitor stack and heap usage, monitor state machines along dozens of other activities that are occurring in software every millisecond.
▫️ Understand: Understand, developed by Scitools, provides developers with a great environment to analyze and understand their software. The tool provides capabilities to perform cyclomatic complexities, perform software metric analysis and static analysis, among other things.
More information...
#articles #design
The tools that we use as developers can make a dramatic difference in the speed, quality, and overall cost of the software we develop. Here are five tools that I’ve found to be very helpful.
▫️ Saleae Logic Analyzer: It can even perform an analog sampling on the signal which helps ensure the analog signal as well as the digital logic look as they should.
▫️ Percepio Tracealyzer: A tracing tool allows developers to see the transitions into and out of tasks, monitor stack and heap usage, monitor state machines along dozens of other activities that are occurring in software every millisecond.
▫️ Understand: Understand, developed by Scitools, provides developers with a great environment to analyze and understand their software. The tool provides capabilities to perform cyclomatic complexities, perform software metric analysis and static analysis, among other things.
More information...
#articles #design
📄 Exploring Cooling Technologies for Electronic Systems
Increasingly, today’s electronic equipment and devices integrate additional functionalities, but this inadvertently results in greater heat flux. We explore the various techniques used to adequately handle heat flux to ensure that electronic systems operate with efficiency.
Ohmic heating (caused by bridging) may damage a device’s various delicate electronic parts, and may cause voids or even explosions. However, with optimised thermal management through cooling, these issues can be avoided.
More information...
#articles #electronics
Increasingly, today’s electronic equipment and devices integrate additional functionalities, but this inadvertently results in greater heat flux. We explore the various techniques used to adequately handle heat flux to ensure that electronic systems operate with efficiency.
Ohmic heating (caused by bridging) may damage a device’s various delicate electronic parts, and may cause voids or even explosions. However, with optimised thermal management through cooling, these issues can be avoided.
More information...
#articles #electronics
📟 MicroPython on ESP32: Sending Data to Google Sheets
A simple weather station based on ESP32 and MicroPython which sends data to a Google Sheet.
Here is a list of main features:
▫️ Measuring temperature and humidity with DHT22 sensor.
▫️ Sending data to a Google Sheet.
▫️ Supporting Google OAuth 2.0 service to get access to the sheet.
▫️ Configuring the device via web browser.
The Google Sheet doesn't need to be publicly available on the Internet. The device doesn't require any middleman such as PushingBox or IFTTT.
More information...
#projects #esp32 #python #IoT
A simple weather station based on ESP32 and MicroPython which sends data to a Google Sheet.
Here is a list of main features:
▫️ Measuring temperature and humidity with DHT22 sensor.
▫️ Sending data to a Google Sheet.
▫️ Supporting Google OAuth 2.0 service to get access to the sheet.
▫️ Configuring the device via web browser.
The Google Sheet doesn't need to be publicly available on the Internet. The device doesn't require any middleman such as PushingBox or IFTTT.
More information...
#projects #esp32 #python #IoT
🔫 Wi-Fi Drone Disabler with Raspberry Pi
Build a Pi-powered drone disabler to understand the security risks of wireless communications
Quadcopters capable of transmitting high-quality video are making it possible to affordably record unique perspectives. But these “unmanned aircraft systems,” as the FAA calls them, have posed new challenges in security, safety, and privacy, and many experts caution pilots to consider the implications of increased drone usage. In addition to the concern of constant surveillance, there’s the possibility that businesses (or hackers) can collect location information from mobile devices by using roving drones.
As a result, a cottage industry is forming for anti-drone technology. These devices come in a range of sizes, from plane-mounted to handheld tools. I will show you how to build our own rig to execute a particular network-based attack against one type of quadcopter control: Wi-Fi.
More information...
#projects #raspberry #wifi
Build a Pi-powered drone disabler to understand the security risks of wireless communications
Quadcopters capable of transmitting high-quality video are making it possible to affordably record unique perspectives. But these “unmanned aircraft systems,” as the FAA calls them, have posed new challenges in security, safety, and privacy, and many experts caution pilots to consider the implications of increased drone usage. In addition to the concern of constant surveillance, there’s the possibility that businesses (or hackers) can collect location information from mobile devices by using roving drones.
As a result, a cottage industry is forming for anti-drone technology. These devices come in a range of sizes, from plane-mounted to handheld tools. I will show you how to build our own rig to execute a particular network-based attack against one type of quadcopter control: Wi-Fi.
More information...
#projects #raspberry #wifi