Raspberry Pi uses SD card for its main storage and you may run out of the free space as your project goes on. Here are some tips to free up your SD card space. 1. Uninstall unnecessary packages Wolfram Engine: I’ve never used but it seems that Wolfram Engine is for mathematical/physics programming. If… Continue reading “Free up SD card space on Raspberry Pi”
The purpose of this post is to record audio (e.g. voice) on Raspberry Pi with a microphone. Raspberry Pi doesn’t have mic input by default, so USB microphone or USB soundcard + 3.5 mm jack mic is required. Example Setup Raspberry Pi (e.g. Raspberry Pi 3 B+/Raspberry Pi 4B) Microphone (e.g. SunFounder USB… Continue reading “Voice Recording on Raspberry Pi”
Update (Sep 7, 2017): If you are using Raspbian Stretch, please refer here instead of steps below. This post below is for Raspbian Jessie. The purpose of this post is to enable Bluetooth Handsfree Profile (HFP) on Raspberry Pi so that Raspberry Pi can act like as a handsfree speaker phone or a handsfree car… Continue reading “HFP on Raspberry Pi”
This is a step-by-step procedure to install the latest official release of Qt Creator onto Ubuntu Linux PC. Qt Creator can be installed by “apt-get” command, however in that case you may not get the latest version. In this post we’ll use the online installer so that we can get the latest version. For the… Continue reading “Installing the Latest Qt Creator on Ubuntu Linux”
You can setup Wi-Fi on GUI, or you can configure it from your console. Here is how to do it from the console. Brief steps: 1. Registering Wi-Fi Network 2. Enabling Automatic Connection 3. Connecting to Wi-Fi network Let’s get started. 1. Registering Wi-Fi Network 1-1. Open /etc/wpa_supplicant/wpa_supplicant.conf sudo nano /etc/wpa_supplicant/wpa_supplicant.conf 1-2. Add last… Continue reading “Setting up Wi-Fi on Raspberry Pi”
