The Raspberry Pi, although first intended as an inexpensive single-board computer for use in education, is now ubiquitous in electronics communities. Its low price as well as Linux platform and accessible GPIO make it useful in many places outside the classroom. But, if you want to abandon the ease-of-use in favor of an even lower […]
PROCESSING AUDIO WITH THE RP2040 Read More »
Toradex leverages Amazon® Web Services (AWS) and NXP® to demonstrate how to simplify the creation of Industry 4.0-ready industrial automation solutions. A live demonstration that leverages expertise and technology across all three companies will be on display at the Industry of Things World in Berlin from September 16 through September 17. The demo includes: The demo is built around a
TORADEX WORKS WITH AMAZON WEB SERVICES AND NXP ON A CLOUD-ENABLED AI DEMONSTRATION Read More »
This is add-on of the audio amplifier project result which is introduced in other instructable. (https://www.instructables.com/PC-Speaker-Amplifier/) Usually many types of sound level meters are directly connected with input (or rarely output) signal lines of amplifier. But personally I’m thinking any electrical connections with amplifier circuit may surely degrade music playback quality by inserting some noises
Arduino Audio Sound Level Meter Read More »
Flashing LEDs are all well and good, but they’re even better if they can sync up with ambient sounds or music. [mircemk] has built the LUMAZOID visualizer to do just that, relying on some staple maker components to do so. The build is open-source, and designed to work with strings of 60, 120, or 180 WS2812B
AN EASY MUSIC VISUALIZER WITH THE ARDUINO NANO Read More »
We all love seeing data represented in pretty ways — whether it’s necessary or not. Take VU meters for example. They’re a super useful tool for audio editors to balance signals, but they also look really cool, even if you’re only listening to music. Who didn’t use a Winamp skin with a built-in VU meter back in
VISUALIZING AUDIO WITH AN LCD VU METER Read More »
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 Read More »
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 Read More »
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 Read More »
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 Read More »
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) Read More »
