Looking at schematics and #firmware of #Teufel #MYND waterproof portable speaker.
Very cool to check out their #OpenHardware design, though not much to see.
Everything of note runs through the WB-2835P #Bluetooth / Audio Module. It even acts as USB-Soundcard and digitizes Line-In, then outputs #I2S to the amplifier chips.
Someone asked how play multiple simultaneous CD-quality WAVs from an SD card to I2S DAC on ESP32 in CircuitPython. Turns out: possible! Can get a bit glitchy if doing USB stuff tho https://www.youtube.com/watch?v=97OA6L9PLCg
code: https://github.com/todbot/circuitpython-tricks/blob/main/larger-tricks/wavmix_s2mini_i2s_sd.py
#CircuitPython #i2s #esp32
STM32 Tutorial #57 - Music Player part 2 - Reading and Parsing WAV files
Second video in the Music Player series. In this video we will implement the file handling, WAV file parsing and sending the WAV PCM data to the audio DAC.
#STM32 #GettingStarted #Tutorial #STM32CubeIDE #STM32CubeMX #I2S #DMA #WAV #SDIO #STM32World
STM32 Tutorial #56 - Music Player part 1 - Audio out to I2S
In this video we start building our "Music Player" introduced in the previous video. This video will focus on the I2S audio out to the DAC as well as adjusting sample rates. Part 2 which will deal with reading WAV files from SD card will follow soon.
#STM32 #GettingStarted #Tutorial #STM32CubeIDE #STM32CubeMX #I2S #DMA #STM32World
STM32World Short #3 - CREATING a Music Player
A short introduction video to our planned music player series.
STM32 Tutorial #55 - I2S w. DMA - Dual Sine
In this Getting Started Tutorial video we are going to dive into generating an audio I2S stream. We will be creating dual SINE waves (Left/Right) at 96 kHz sample rate.
#STM32 #Tutorial #GettingStarted #STM32CubeIDE #STM32CubeMX #I2S #DMA #STM32World
Packing Even More Features Into a Classic Radio - When it comes to hacking niches, breathing new life into vintage devices is always... - https://hackaday.com/2025/01/17/packing-even-more-features-into-a-classic-radio/ #digitalaudiohacks #musicalhacks #ipsdisplay #nfcreader #ili9431 #m5stack #teensy #i2s #lcd #nfc
Using Audio Hardware To Drive Neopixels Super Fast - Here’s the thing about running large strings of Neopixels—also known as WS2812 add... - https://hackaday.com/2025/01/13/using-audio-hardware-to-drive-neopixels-super-fast/ #ledhacks #esp32 #i2s #led
Audio On Pi: Here Are Your Options - There are a ton of fun Raspberry Pi and Linux projects that require audio output –... - https://hackaday.com/2024/08/12/audio-on-pi-here-are-your-options/ #usbaudiocard #raspberrypi #featured #hardware #usbaudio #how-to #codec #sound #i2s
ESP32 Powered Crunch-E Makes Beats on the Go - There’s no shortage of devices out there for creating electronic music, but if you... - https://hackaday.com/2024/06/11/esp32-powered-crunch-e-makes-beats-on-the-go/ #microcontrollers #electronicmusic #musicalhacks #tracker #esp32 #i2s
Do YOU have experience designing #usb3 or #usbC circuits? How about implementing I²S audio?
I'd love to chat, and/or work together on an #openSource, budget-friendly, and VERY high quality (24bit/192K) 8 channel #usbAudioInterface.
I'm basing the front-end on the incredible differential instrumentation amplifier #INA217 by #burrBrown. We're talkin' #midas competition #preamps into a BB #adc 
.
I could really use help with the usb implementation.
DIY Programmable Guitar Pedal Rocks The Studio & Stage - Ever wondered how to approach making your own digital guitar effects pedal? [Steve... - https://hackaday.com/2023/05/16/diy-programmable-guitar-pedal-rocks-the-studio-stage/ #microcontrollers #adafruitfeather #musicalhacks #digitalaudio #guitarpedal #teensy #i2s #pcb
Modded See ‘N Say Teaches the Sounds of City Life - The Fisher-Price See ‘n Say was introduced back in 1964, and since then has helped... - https://hackaday.com/2023/03/13/modded-see-n-say-teaches-the-sounds-of-city-life/ #microcontrollers #toyhacks #adafruit #seensay #vintage #i2s #toy
Modded See ‘N Say Teaches the Sounds of City Life
https://hackaday.com/2023/03/13/modded-see-n-say-teaches-the-sounds-of-city-life/
#Microcontrollers #ToyHacks #adafruit #Seen'Say #vintage #I2S #toy
@matt_trentini @dave @fuzzySynths I definitely walked in with a plan to bitbang. Reading about #micropython interrupts disabused me.
I'm not sure what RMT is. I looked at an #I2S device but it kind of sucked. The #ad9833 is #SPI and works beautifully but has predetermined waveforms.
I wondered about storing wfs in an #eeprom but it needs more thought. Still need to output a phase ramp at a high rate. #esp32->DDS ramp->eeprom->DAC?
Working With I2S-Compatible FM Tuners - While the Internet is a great place to get access to any music or audio you can dr... - https://hackaday.com/2022/12/23/working-with-i2s-compatible-fm-tuners/ #radiohacks #fmradio #parts #radio #i2c #i2s
Working With I2S-Compatible FM Tuners
https://hackaday.com/2022/12/23/working-with-i2s-compatible-fm-tuners/
#RadioHacks #fmradio #Parts #radio #i2c #I2S
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