Setting Up I2C Serial Communication on Raspberry Pi

This post shows steps to setup I2C serial communication [1] on Raspberry Pi with an I2C peripheral device. I’ll use a temperature and humidity sensor as an example of I2C peripheral. The goal is to read those sensors value on Raspberry Pi.   Assumptions I assume that you already installed Raspbian OS on your Pi, if not,… Continue reading “Setting Up I2C Serial Communication on Raspberry Pi”

Showing Album Cover Art Images for Bluetooth Audio

In the previous post, I was able to show song title, artist name, and album name of Bluetooth audio. Then, I thought it would be nice if the album cover art images could be displayed too. Specification wise, transferring cover art over Bluetooth is supported since AVRCP 1.6 [1], but unfortunately it’s not widely implemented… Continue reading “Showing Album Cover Art Images for Bluetooth Audio”

Controlling Bluetooth Audio on Raspberry Pi

Update (April 21, 2020): Volume control support added. This post shows steps to control playback status of Bluetooth audio which is streamed from a connected phone (or any Bluetooth capable media player). The goal is to enable below. Playback control (play, pause, next/previous song, and volume control) Music information display in real time (song title, artist… Continue reading “Controlling Bluetooth Audio on Raspberry Pi”

Enabling Python Autocomplete in VIM on Raspberry Pi

This post shows steps to enable Python autocomplete in vim editor [1] on Raspberry Pi. In this post, jedi-vim [2] and Vundle.vim [3] will be used for autocomplete plugin and plugin manager respectively. Also, even Raspbian Stretch has vim preinstalled, it’s a minimal version which is called “vim.tiny” and to use the plugin, we need… Continue reading “Enabling Python Autocomplete in VIM on Raspberry Pi”

Setting Up Bluetooth Serial Port Profile on Raspberry Pi using D-Bus API

This post shows steps to set up Bluetooth Serial Port Profile[1] (or SPP) on Raspberry Pi. The goal is to establish an SPP connection between Raspberry Pi 3 and Android phone, then send and receive texts using serial terminal applications on both ends. SPP is not available by default. There are two options to enable… Continue reading “Setting Up Bluetooth Serial Port Profile on Raspberry Pi using D-Bus API”