Category Archives: dac

Bitluni Brings All the ESP-32 Multimedia Hacks to Supercon

Of all the people I was looking forward to meeting at Supercon, aside from my Hackaday colleagues with whom I had worked for five years without ever meeting, was a fellow from Germany named Matthias Balwierz. The name might not ring a bell, but he’ll certainly be familiar to Hackaday …read more

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Posted in 2019 Hackaday Superconference, bitluni, cons, dac, dma, ESP-32, espressif, I2S, Microcontrollers, modulation, pal, vga, xtensa | Leave a comment

RTFM: ADCs and DACs

It’s tough to find a project these days that doesn’t use an analog-to-digital converter (ADC) or digital-to-analog converter (DAC) for something. Whether these converters come as built-in peripherals on a microcontroller, or as separate devices connected over SPI, I2C, or parallel buses, all these converters share some common attributes, …read more

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Posted in adc, analog, calibration, converter, dac, digital, DNL, Engineering, Hackaday Columns, INL, Original Art | Leave a comment

10-Way Game Console Lets Everyone Play

[Bitluni]’s motto seems to be, “When you’re busy, get busier.” At least that would explain adding even more work to his plate in the run-up to the Hanover Maker Faire and coming up with a ten-player game console from scratch.

As for this being extra work, recall that [bitluni] had …read more

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Posted in composite, dac, ESP32, gamepad, nintendo, nintendo hacks, pal, R-2R Ladder, video hacks | Leave a comment

Creative Limitation And The Super Nintendo Sound Chips

The Super Nintendo recently experienced a surge in popularity, either from a combination of nostalgic 30-somethings recreating their childhoods, or because Nintendo released a “classic” version of this nearly-perfect video game system. Or a combination of both. But what made the system worthy of being remembered at all? With only …read more

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Posted in art, dac, donkey kong, memory, music, retro, retrocomputing, snes, sound, super nintendo, video game | Leave a comment

Arduino Nitrox Analyzer for the Submarine Hacker

For Hackaday readers who don’t spend their free time underwater, nitrox is a blend of nitrogen and oxygen that’s popular with scuba divers. Compared to atmospheric air, nitrox has a higher concentration of oxygen; which not only allows divers to spend more time underwater but also reduces the risk of decompression sickness. Of course when fiddling with the ratio of gases you breathe there’s a not inconsequential risk of dying, so nitrox diving requires special training and equipment to make sure the gas mixture is correct.

Divers can verify the ratio of oxygen to nitrogen in their nitrox tanks with …read more

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Posted in Arduino Hacks, dac, hardware, nitrogen, nitrox, oled, oxygen sensor, scuba | Leave a comment