It’s a distressing moment for some of us, when a formerly prized piece of electronic equipment reaches a point of obsolescence that we consider jettisoning it. [Jon Robinson] ran into this dilemma by finding the Kenwood Hi-Fi amplifier his 17-year-old self had spent his savings on. It was a very good amp back in the […]
BRING THAT OLD HI-FI INTO THE 2020S Continue Reading
In the early 1980s cassette tapes were the standard storage medium for home computer users; readers of a certain age will remember fiddling with audio jacks, tape counters and signal levels, then waiting for several minutes while a program (hopefully) loaded correctly. While most people happily upgraded to much more reliable floppy disks, [Zack Nelson]
AUDIO TAPE INTERFACE REVIVES MICROCASSETTES AS STORAGE MEDIUM Continue Reading
A popular tool in chiptune software like LSDJ allows the user to draw a waveform and use it as the basis for a wavetable synth. It’s fun and it can produce some great bleeps and bloops. [Kevin] has created a similar tool using an Arduino and a touchscreen. The build is based on the Arduino Uno,
TOUCHSCREEN MAKES FOR A NEAT WAVETABLE SYNTH Continue Reading
Looking for a digital recreation of the classic analog volume unit (VU) meter? If you’ve got an Arduino, a few passive components, and a SSD1306 OLED, then [mircemk] might have the answer for you. As you can see in the video below, his code turns a handful of cheap parts into an attractive and functional audio
ANALOG STYLE VU METER WITH ARDUINO AND OLED DISPLAY Continue Reading
Reaction time is a measure of time a person takes to identify a stimulus and produce a response. For example an athlete’s audio reaction time is time elapsed between firing of gun shot (that starts the race) and him or her starting the race. Reaction time plays an important role in situations of immediate response
Reaction Time Meter (Visual, Audio and Touch) Continue Reading
While humans have done a pretty good job of figuring out how to fly with various mechanical contrivances, the fact remains that our natural senses aren’t really well suited to being off the ground. For example, unless you have a visual reference point, determining which way is up is quite a bit harder than you
ARDUINO VARIOMETER IN A MINT TIN Continue Reading
Retired scientist [Mark Howe] spent the last couple months making an animatronic movie featuring his LEGO lunar lander in a video recreation of the Apollo 11 moon landing (also embedded below). [Mark] is not only the producer, but serves as the technical director, set designer, and cameraman as well. He designed and 3D-printed a custom special effects
LEGO LUNAR LANDER ANIMATRONIC MOVIE RELEASED Continue Reading
Audio and video synthesizers have been around for decades, and are pretty much only limited by one’s willingness to spend money on them. That is, unless you can develop your own FPGA-supercharged synthesizer to really get a leg up on the consumer-grade components. Of course, as [Julian] found out in this four-year project, you tend to pay
FREE TO GOOD HOME: FPGA SUPERCHARGED AUDIO/VIDEO SYNTHESIZER Continue Reading
3.5″ Embedded SBC with Intel® Celeron® Processor J1900/J1800, LVDS, VGA, DisplayPort, Three GbE LANs and Audio. CAPA84R, is a fanless 3.5-inch embedded motherboard powered by the Intel® Celeron® processor J1900 quad-core or J1800 dual-core. The CPU is located at the rear side of the motherboard, which further aids the heat-extraction process and simplifies maintenance procedures.
CAPA84R – 3.5″ Embedded SBC with Intel® Celeron® Processor Continue Reading
User [mircemk] presents his “MiliOhm Meter” project which you can build with an Arduino, a handful of common parts from your lab, and a cigar box. It doesn’t get much simpler than this, folks. While this is something you won’t be getting calibrated with NIST traceability, it looks like a fun and quick project that’s more than
QUICK AND SIMPLE MILLIOHMMETER Continue Reading
