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Free Stuff - February 2024
The belated February 2024 Free Stuff recipient for the Great Scott Gadgets Free Stuff Program is Adam Drake! Adam, a teacher in Canada, sponsors three clubs at his high school - a competitive robotics club, a model railway club, and a D&D club. All of these clubs are fully funded from either internal school funds, the school PAC (Parental Advisory Council), or the NSHSS. This summer, Adam ran an RF Comms summer school where 18 students gained their amateur radio certification!
Following the success of the RF Comms summer school, Adam is now starting another after-school club: “RF Communications.” This club...
Wealth distribution in the United States
Forbes recently published the Forbes 400 List for 2024, listing the 400 richest people in the United States. This inspired me to make a histogram to show the distribution of wealth in the United States. It turns out that if you put Elon Musk on the graph, almost the entire US population is crammed into a vertical bar, one pixel wide. Each pixel is $500 million wide, illustrating that $500 million essentially rounds to zero from the perspective of the wealthiest Americans.
The histogram above shows the wealth distribution in red. Note that the visible red line is one pixel wide at the left and disappears everywhere else—this is...
Оголяем «данные» и что из этого вышло
Однажды я задался целью создать устройство, которое измеряло бы качество воздуха — не просто как-то, а с высокой точностью. Проект по разработке устройства привел к созданию NeboAir — недорогого датчика, который претендует на высокую точность. В этом материале я расскажу об испытаниях в реальных условиях и о том, что получилось в итоге.
Читать далееFritzing 1.0.4 released
Fritzing 1.0.4 is a maintenance release. It has been tested on Windows 10, Windows 11, macOS Ventura, macOS Monterey, Ubuntu 20.04, Ubuntu 22.04, and Ubuntu 24.04. What is new UX: QFN support and working with tiny structures in the PCB was vastly improved. We changed the algorithm that decides which element will receive a mouse click. Ratsnest lines now stay the same size when zooming in. The hitbox size of wires and traces now depends on the wire diameter. These two images show a PCB at 3000% zoom. The copper traces are 0.2mm (8mil) wide. Working at this scale was...
September Update: Check Your Notes
A new community update! New hardware to announced and previous hardware to return!
BML FPGA Design Tutorial Part-16ofN : Test Benches
2024.09.29 : I’m BSEE Kevin Hubbard from Seattle, WA. I design digital logic circuits. My journey started more than 40 years ago designing digital circuit boards. My first was a simple 5V TTL logic plug-in expansion board for my 8-bit Apple ][+ computer as a teenager in the 1980’s. In the 1990’s I eventually transitioned ( and got paid! ) to design chips – PALs, CPLDs, early sub-micron (350nm) FPGAs and eventually digital ASICs (250nm, 180nm ) during the LSI Logic heyday years of late 1990’s to early 2000’s.
I have circled back to FPGAs these days, but now deep sub-micron...
Black Mesa Labs
Soil Monitoring for Conservation, Australia
Measuring changing in soil properties can indicate soil and ecosystem health, informing conservation land management practises.
The post Soil Monitoring for Conservation, Australia first appeared on Freaklabs.
The post Soil Monitoring for Conservation, Australia appeared first on Freaklabs.
GPS and Septage Level Monitoring on Trucks, Egypt
In almost all of the projects we work on, the technology problem is the easiest one to solve.
The post GPS and Septage Level Monitoring on Trucks, Egypt first appeared on Freaklabs.
The post GPS and Septage Level Monitoring on Trucks, Egypt appeared first on Freaklabs.
Monitoring Water Levels in Rice Paddy Fields, Philippines
By reducing the amount of water used in growing, and monitoring the water levels in the rice paddy fields, irrigation can be managed more efficiently and predictably.
The post Monitoring Water Levels in Rice Paddy Fields, Philippines first appeared on Freaklabs.
The post Monitoring Water Levels in Rice Paddy Fields, Philippines appeared first on Freaklabs.
Water Monitoring & Workshops, The Himalayas
Ownership over a system is critical as many projects fail after the implementors leave.
The post Water Monitoring & Workshops, The Himalayas first appeared on Freaklabs.
The post Water Monitoring & Workshops, The Himalayas appeared first on Freaklabs.