Even though your linux has a package management system, sometimes you may need to install a software from source code for some reason. And if you install the software by ‘make install’, you may have a little difficulty later on; You cannot use your package manager to uninstall it. This is where ‘checkinstall’ comes in.… Continue reading “Installing software from source code with ‘checkinstall’”
By enabling SSH, you can access Raspberry Pi remotely. For security, you should change login password If you enable SSH. Here is the steps. 1. Enable SSH 1-1. Launch raspi-config sudo raspi-config 1-2. Select “Interfacing Options”. 1-3. Select “SSH”, and “Yes”. 1-4. Then, exit raspi-config. 2. Change login password for user ‘pi’ 2-1.… Continue reading “Enabling SSH on Raspberry Pi”
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”
Update (Sep. 7th, 2017): If you are using Raspbian Stretch, the pre-installed version is now v1.1.3 and this issue doesn’t occur any more! Update (Dec. 9th, 2018): If you are looking for steps to update ALSA on Raspbian Strech, please see this post. If you find hundreds of files like below after the recording… Continue reading “arecord creates hundreds of files”
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”
