📡 Building a CubeSat from the scratch
A CubeSat (U-class spacecraft) is a type of miniaturized satellite for space research
An interesting series of videos explaining how CubeSat could be built from hardware to software (written in Rust) in just under 1000$.
More information:
Video part 1
Video part 2
Video part 3
Video part 4
Github for hardware
Github for software
#projects #electronics #rust
A CubeSat (U-class spacecraft) is a type of miniaturized satellite for space research
An interesting series of videos explaining how CubeSat could be built from hardware to software (written in Rust) in just under 1000$.
More information:
Video part 1
Video part 2
Video part 3
Video part 4
Github for hardware
Github for software
#projects #electronics #rust
📃 Vertical turbines far more efficient in large-scale wind farms
A study from Oxford Brookes University researchers has found that vertical wind turbine design is considerably more efficient than the traditional form factor in large-scale wind farms, and in a certain arrangement can increase performance by up to 15 per cent.
The research suggests that the now-familiar sight of traditional propeller wind turbines may be eventually replaced by the sight of wind farms containing more compact and efficient vertical turbines.
More information...
#articles #energy
A study from Oxford Brookes University researchers has found that vertical wind turbine design is considerably more efficient than the traditional form factor in large-scale wind farms, and in a certain arrangement can increase performance by up to 15 per cent.
The research suggests that the now-familiar sight of traditional propeller wind turbines may be eventually replaced by the sight of wind farms containing more compact and efficient vertical turbines.
More information...
#articles #energy
📟 ESP32 Plot Sensor Readings in Charts (Multiple Series)
This project shows how to build a web server with the ESP32 to plot sensor readings in charts with multiple series.
As an example, we’ll plot sensor readings from four different DS18B20 temperature sensors on the same chart. You can modify the project to plot any other data. To build the charts, we’ll use the Highcharts JavaScript library.
More information...
#projects #esp32 #IoT
This project shows how to build a web server with the ESP32 to plot sensor readings in charts with multiple series.
As an example, we’ll plot sensor readings from four different DS18B20 temperature sensors on the same chart. You can modify the project to plot any other data. To build the charts, we’ll use the Highcharts JavaScript library.
More information...
#projects #esp32 #IoT
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🤖 Apple harvesting robot plucks a piece of fruit every 7 seconds
Like many industries across the world, 🇦🇺 Australia's fruit-picking sector has been impacted heavily by the COVID-19 pandemic, creating a massive void in the labor market that would normally be filled by backpackers looking to make buck on the road.
Local researchers have cooked up a creative partial solution to this problem, developing a fruit-picking robot that can harvest apples from orchards at high speed.
The robot uses a mix of cameras and deep learning algorithms to scan the trees of an orchard and detect the pieces of fruit, which requires it to process information on their shape, orientation and the location of the stem-branch joint to minimize damage to the produce and the surrounding foliage.
More information...
#news #robots #machine_learning
Like many industries across the world, 🇦🇺 Australia's fruit-picking sector has been impacted heavily by the COVID-19 pandemic, creating a massive void in the labor market that would normally be filled by backpackers looking to make buck on the road.
Local researchers have cooked up a creative partial solution to this problem, developing a fruit-picking robot that can harvest apples from orchards at high speed.
The robot uses a mix of cameras and deep learning algorithms to scan the trees of an orchard and detect the pieces of fruit, which requires it to process information on their shape, orientation and the location of the stem-branch joint to minimize damage to the produce and the surrounding foliage.
More information...
#news #robots #machine_learning
🖥 Smashed iPad + Pi Zero = Magic Mirror
I built a magic mirror quite a while ago and I've been using a Fire Tablet for the display. My old iPad was finally becoming unusable so I thought I'd try and take it apart and salvage the screen. Hooked it up to a Pi Zero and I've now liberated the Fire Tablet for day to day use!
More information...
#projects #raspberry #display
I built a magic mirror quite a while ago and I've been using a Fire Tablet for the display. My old iPad was finally becoming unusable so I thought I'd try and take it apart and salvage the screen. Hooked it up to a Pi Zero and I've now liberated the Fire Tablet for day to day use!
More information...
#projects #raspberry #display
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📰 US Army Explores Equipping Robots with Living Muscle Tissue
A scientist from the Army Research Lab gave a glimpse into its early work with biohybrid robotics
The Army Research Laboratory believes its bots could use real muscle, which allows most living things to move and manipulate their environments, instead of mechanical arms, wheels, tracks, and other systems to travel across the battlefield. The concept, which some might find disturbing, is an example of the new field of “biohybrids.”
Modern army robots use batteries that power motors, which then drive axles and turn wheels. A biohybrid-powered robot would replace this entire system with lab-grown organic muscle tissue that might power artificial legs or other limbs. Electrical impulses or chemical actuation would control the muscles.
More information...
#news #robots
A scientist from the Army Research Lab gave a glimpse into its early work with biohybrid robotics
The Army Research Laboratory believes its bots could use real muscle, which allows most living things to move and manipulate their environments, instead of mechanical arms, wheels, tracks, and other systems to travel across the battlefield. The concept, which some might find disturbing, is an example of the new field of “biohybrids.”
Modern army robots use batteries that power motors, which then drive axles and turn wheels. A biohybrid-powered robot would replace this entire system with lab-grown organic muscle tissue that might power artificial legs or other limbs. Electrical impulses or chemical actuation would control the muscles.
More information...
#news #robots
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📟 Measuring Wheel
A 3D printed measuring wheel displaying both metric and imperial measurements
The circuit is designed around a ATtiny1614 microprocessor. It uses very little power when in sleep mode. The rotary encoder contains two sets of contacts which can become quite noisy resulting in incorrect readings.
I added a RC network and Schmitt trigger between each contact and microprocessor. This removes any noise generated by the contacts and provides clean switch change signals to the microprocessor. The result is precise and accurate readings. The circuit is powered by a 3.7V 120mA LIPO battery.
More information...
#projects #3d_modeling #electronics
A 3D printed measuring wheel displaying both metric and imperial measurements
The circuit is designed around a ATtiny1614 microprocessor. It uses very little power when in sleep mode. The rotary encoder contains two sets of contacts which can become quite noisy resulting in incorrect readings.
I added a RC network and Schmitt trigger between each contact and microprocessor. This removes any noise generated by the contacts and provides clean switch change signals to the microprocessor. The result is precise and accurate readings. The circuit is powered by a 3.7V 120mA LIPO battery.
More information...
#projects #3d_modeling #electronics
💻 3 Ways to Improve Your Software Development Environment
Leverage a unit test harness
Over the last several years, software development process tools have made huge leaps forward to the point where even the smallest embedded software teams can benefit from using the tools. Test harnesses provide developers with the ability to perform automated regression testing to ensure that the code is working as expected and that no new additions interact with existing code.
Spend less time debugging
According to any number of surveys, and conference talks, the average developer spends about 40 percent of their time debugging. Recovering debug time can benefit by reducing project costs, helping teams deliver on time, reduce stress, and a myriad of other benefits.
Review and improve your processes
The key to sustained success is to have a balanced approach that allows for repeatability but maintains the development team’s flexibility and adaptability.
More information...
#articles #software
Leverage a unit test harness
Over the last several years, software development process tools have made huge leaps forward to the point where even the smallest embedded software teams can benefit from using the tools. Test harnesses provide developers with the ability to perform automated regression testing to ensure that the code is working as expected and that no new additions interact with existing code.
Spend less time debugging
According to any number of surveys, and conference talks, the average developer spends about 40 percent of their time debugging. Recovering debug time can benefit by reducing project costs, helping teams deliver on time, reduce stress, and a myriad of other benefits.
Review and improve your processes
The key to sustained success is to have a balanced approach that allows for repeatability but maintains the development team’s flexibility and adaptability.
More information...
#articles #software
📰 Nexperia’s Trench Schottky Diodes Seize Power Efficiency
This week, Nexperia has released a new group of trench Schottky diodes which they claim are more efficient than ever
According to their datasheets, these new diodes have impressive specs, with forward voltage drop of around 600 mV, leakage currents around 1 µA, and a reverse recovery step time of 17 ns.
The company claims these specs result from the trench configuration, which allows for low reverse recovery charge and hence faster reverse recovery times.
The company sees these devices finding homes in applications that require high power and high-frequency switching like automotive, and specifically LED lighting. This family now offers devices ranging from 40 V to 100 V and up to 15 A in volume production, with 20 A devices available for sampling.
More information...
#news #electronics
This week, Nexperia has released a new group of trench Schottky diodes which they claim are more efficient than ever
According to their datasheets, these new diodes have impressive specs, with forward voltage drop of around 600 mV, leakage currents around 1 µA, and a reverse recovery step time of 17 ns.
The company claims these specs result from the trench configuration, which allows for low reverse recovery charge and hence faster reverse recovery times.
The company sees these devices finding homes in applications that require high power and high-frequency switching like automotive, and specifically LED lighting. This family now offers devices ranging from 40 V to 100 V and up to 15 A in volume production, with 20 A devices available for sampling.
More information...
#news #electronics
📰 IBM creates First 2nm Chip
Today’s announcement states that IBM’s 2nm development will improve performance by 45% at the same power, or 75% energy at the same performance, compared to modern 7nm processors.
IBM is keen to point out that it was the first research institution to demonstrate 7nm in 2015 and 5nm in 2017, the latter of which upgraded from FinFETs to nanosheet technologies that allow for a greater customization of the voltage characteristics of individual transistors.
IBM states that the technology can fit ’50 billion transistors onto a chip the size of a fingernail’. We reached out to IBM to ask for clarification on what the size of a fingernail was, given that internally we were coming up with numbers from 50 square millimeters to 250 square millimeters. IBM’s press relations stated that a fingernail in this context is 150 square millimeters. That puts IBM’s transistor density at 333 million transistors per square millimeter.
More information...
#news #electronics
Today’s announcement states that IBM’s 2nm development will improve performance by 45% at the same power, or 75% energy at the same performance, compared to modern 7nm processors.
IBM is keen to point out that it was the first research institution to demonstrate 7nm in 2015 and 5nm in 2017, the latter of which upgraded from FinFETs to nanosheet technologies that allow for a greater customization of the voltage characteristics of individual transistors.
IBM states that the technology can fit ’50 billion transistors onto a chip the size of a fingernail’. We reached out to IBM to ask for clarification on what the size of a fingernail was, given that internally we were coming up with numbers from 50 square millimeters to 250 square millimeters. IBM’s press relations stated that a fingernail in this context is 150 square millimeters. That puts IBM’s transistor density at 333 million transistors per square millimeter.
More information...
#news #electronics
📃 ARM vs RISC-V Vector Extensions
A comparison of the RISC-V vector extension (RVV) and ARM scalable vector extension (SVE/SVE2)
Microprocessor with vector instructions is going to be the big thing for the future. Why? Because self-driving, speech recognition, image recognition are all based on machine learning and machine learning is all about matrices and vectors.
But that is not the only reason. We have been banging our heads in the wall trying to eek out more performance for years ever since we semi-officially declared Moore’s laws to be over. In the golden old days of microprocessor design, we could simply double the clock frequency of the CPU each year and boom everybody was happy. That wonderful old trick is over.
Today we play a thousand different clever games to eek out more performance whether that is through adding more CPU cores, adding out-of-order execution, more advance branch predictors or SIMD instructions.
More information...
#articles #electronics #machine_learning
A comparison of the RISC-V vector extension (RVV) and ARM scalable vector extension (SVE/SVE2)
Microprocessor with vector instructions is going to be the big thing for the future. Why? Because self-driving, speech recognition, image recognition are all based on machine learning and machine learning is all about matrices and vectors.
But that is not the only reason. We have been banging our heads in the wall trying to eek out more performance for years ever since we semi-officially declared Moore’s laws to be over. In the golden old days of microprocessor design, we could simply double the clock frequency of the CPU each year and boom everybody was happy. That wonderful old trick is over.
Today we play a thousand different clever games to eek out more performance whether that is through adding more CPU cores, adding out-of-order execution, more advance branch predictors or SIMD instructions.
More information...
#articles #electronics #machine_learning
🤖 Aquanaut, the Underwater Transformer
Aquanaut is an advanced unmanned underwater transformer that can transform itself from a nimble long-distance submarine into a half-humanoid robot capable of carrying out complex underwater manipulation tasks.
Designed by Houston Mechatronics Inc, Aquanaut can inspect subsea oil and gas infrastructure, operate valves, and use subsea tools with just a few mouse clicks.
Operating completely untethered and without support ships, Aquanaut can travel more than 124 miles in submarine mode, has a max speed of 7 knots and a maximum operational depth of 984 feet.
More information...
#articles #robots
Aquanaut is an advanced unmanned underwater transformer that can transform itself from a nimble long-distance submarine into a half-humanoid robot capable of carrying out complex underwater manipulation tasks.
Designed by Houston Mechatronics Inc, Aquanaut can inspect subsea oil and gas infrastructure, operate valves, and use subsea tools with just a few mouse clicks.
Operating completely untethered and without support ships, Aquanaut can travel more than 124 miles in submarine mode, has a max speed of 7 knots and a maximum operational depth of 984 feet.
More information...
#articles #robots