Category: <span>bluetooth</span>

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DIY Wireless Serial Adapter Speaks (True) RS-232

There is a gotcha lurking in wait for hackers who look at a piece of equipment, see a port labeled “Serial / RS-232”, and start to get ideas. The issue is the fact that the older the equipment, the more likely it is to be a bit old-fashioned about how it expects to speak RS-232. […]
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The Beat Goes On With This ESP32 Page Turner

Looking for a hands-free way to page through sheet music on an iPad, [The_Larch] came up with this simple Bluetooth input device based on the ESP32. The microcontroller just needed to have two switches wired into the GPIO pins, in this case the same heavy-duty plungers you’d find on a guitar pedal, and a USB […]
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New Part Day: Espressif ESP32-C6

If you’re a reader of Hackaday, then you’ve almost certainly encountered an Espressif part. The twin microcontroller families ESP8266 and ESP32 burst onto the scene and immediately became the budget-friendly microcontroller option for projects of all types. We’ve seen the line expand recently with the ESP32-C3 (packing a hacker-friendly RISC-V core) and ESP32-S3 with oodles […]
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Bluetooth PS3 Controllers Modernize The Nintendo GameCube

While the PlayStation 3 and Gamecube come from opposing sides of the aisle, and in fact aren’t even from the same generation of hardware, this DIY adapter built by [Jeannot] allows Nintendo’s console to use Sony’s Bluetooth controllers with surprisingly little fuss. This might seem unnecessary given the fact that Nintendo put out an official […]
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AM/FM Radio Gets Bluetooth Upgrade

For many commercial broadcast radio has lost its luster, leaving an unknowable number of perfectly serviceable AM/FM radios to lie dormant. But they don’t have to. As [Dan Gebhardt] shows in his recent hack, integrating a Bluetooth audio receiver into portable radio may be easier than you think. For this project, [Dan] wanted to make […]
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How To Exit Emergency Mode on Android

Emergency mode is a useful feature that many Android enthusiasts have found to be of great help. This feature is especially useful when you find yourself in a difficult situation. Emergency mode allows you limited access to the emergency features of your Android phone. This helps your handset preserve battery power for extended standby time. When the emergency mode […]
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Adjusting Default Bluetooth Connections in Android

Nothing puts the breaks on a good time like your BlueTooth speakers not connecting — when the music stops, the party stops! Bluetooth technology is one aspect of Android devices we really can’t handle living without. When it stops working or starts having problems, we go haywire. Because there are often so many problems with this […]
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How to Use Nearby Share on Samsung S20 Device

Among the gadgets released in 2020, the Samsung S20 Android has attracted so much attention. And you have the easy-to-use Nearby Share feature to thank for all this hype. You can really only compare the remarkable Samsung S20 Nearby Share feature to Apple’s Airdrop. So let’s take a little time to understand how to use this intriguing […]
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How To Connect Android Bluetooth to Windows 10

We’ve all experienced the need to share files or data from one device to another wirelessly. With advances in wavelength technology, the ultra-high frequency (UHF) band gave birth to Bluetooth. People use Bluetooth for exchanging data wirelessly between fixed and mobile devices over a short distance. Instead of cables, all it uses is a small radio chip […]
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ESP32 Turned Open Source COVID-19 Contact Tracer

Over the past few months we’ve heard a lot about contact tracers which are designed to inform users if they’ve potentially come into close proximity with someone who has the virus. Generally these systems have been based on smartphone applications, but there are also hardware solutions that can operate independently for those who are unable […]
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