Connect Bluetooth Headset Or Speaker

In this post, I’ll share with you the final solution that lets you connect your Bluetooth headset or speaker to Raspberry Pi 3.
You’ll be able to use both output speaker and input microphone.

By the way, thanks to the people who kept me updated in the comments, it was a long journey together (:

Firstly, let me sum up the root causes of this long time problem:

  1. Drop-out of ALSA support in Bluez v5 (replaced by PulseAudio).
  2. Unavailability of correct PulseAudio version for Raspbian Jessie.
  3. Incorrect audio rooting SCO-HCI for the Bluetooth chip BCM43438.

I solved the issues 1 and 2, but I couldn’t find a good solution for 3. For issues 1 and 2, I found how to install manually PulseAudio, with code sources, or using Debian backports. For issue 3, I used a BT-USB dongle that bypassed the internal Bluetooth chip and let me use A2DP and HSP profiles.

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Build a Stratum 1 NTP (Time) Server

The Raspberry Pi Model B was released in 2012 and, since then, a number of useful applications regarding this device have ensued. However, one particular application that is seldom overlooked when dealing with the Raspberry Pi is its ability to be used as a Stratum 1 NTP server and allow you to synchronize clocks across networks like the Internet. For me, this useful trick has actually made my entire office far more efficient. 

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Enable SPI Interface on the Raspberry Pi

The Raspberry Pi has an SPI (Serial Peripheral Interface) bus which can be enabled on Pins 19,21,23,24 & 26. It is a synchronous serial data link standard and is used for short distance single master communication between devices. As far as the Pi is concerned this is usually relevant to certain sensors and add-on boards.
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Recover a Raspberry Pi’s lost User Password

This tutorial aims to answer one of this recurring question: I have lost my password, is it possible to recover access to my Raspberry Pi?

The answer can be surprising but it is actually possible to recover a forgottent or lost password on the Raspberry Pi. To be more exact, it is actually possible to change the lost password of your Raspberry Pi.
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Turn a Raspberry Pi into an Always-On BitTorrent Box

It’s ideal to have a dedicated machine for your BitTorrent client, so you can seed 24/7. But it’s energy intensive to leave a full rig powered up and online that often. Enter the Raspberry Pi.

Most desktop PCs draw a fair amount of energy—our modest home office server, for example, consumes nearly $200 worth of electricity per year. The Raspberry Pi, on the other hand, is built around a mobile processor and sips energy like a hummingbird. The core Raspberry Pi board uses less than $3 of energy per year and even adding in a few external hard drives, you’ll still keep your yearly operating costs at less than a burger and fries.

Plus, when it comes to downloading torrents, an always-on machine is king. With torrents, the more you monitor the cloud and seed into it the better your ratio on your tracker (even if you’re leeching from public trackers, an always-on machine ensures you’ll be there when those rare files make an appearance).Read More

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