SimpleScreenRecorder works on Raspberry Pi

SimpleScreenRecorder is a Linux program that was created to record programs and games by Maarten Baert. I have found this to work exceptionally well on the Raspberry Pi 3B+ and I wanted to show you how easy it is to install and use.

As Maarten Baert’s original goal was to create a program that was just really simple to use, featured filled and is actually a pretty powerful program. It’s ‘simple’ in the sense that it’s easier to use than most other programs because it has a straightforward user interface. Here is a direct link to SimpleScreenRecorder.

NOTE:
I am installing this across my network from my Linux Mint computer using RealVNC to my Raspberry Pi 3B+ so I can use the same SimpleScreenRecorder on the Pi. Once I have that installed on the Pi I will install another program showing you SimpleScreenRecorder being installed on it.

Additional NOTE:
Last week I installed the RESPEAKER on the Pi so that is how you will hear me on the next video. In THIS video the microphone you hear me on is on my Linux Mint computer.

So now that you know about it and all the details let us get to it with the installation. This is going to be fun!

For those that wanted a more close up of the control panels here is a .gif I Googled on the Internet.

Final thoughts:

I have tried several different programs over the years that do screen recordings. I find this one not only the easiest to use but the Simple fact that it works so wonderfully well on the Raspberry Pi is perfect. Give this a try and I think you will be not only very surprised but happy as well. -=Enjoy=-

ReSpeaker 4-Mic Array for the Raspberry Pi

Today’s project is a ReSpeaker 4-Mic Array for the Raspberry Pi. It is a quad-microphone expansion board designed for AI and voice applications. This means that we can build a more powerful and flexible voice product that integrates Amazon Alexa Voice Service, Google Assistant, and so on.

The Respeaker comes assembled and easily fits onto any Raspberry Pi provided that the header is already installed to it.

Mount ReSpeaker 4-Mic Array on Raspberry Pi, make sure that the pins are properly aligned when stacking the ReSpeaker 4-Mic Array for Raspberry Pi.

Note: Hot-plugging ReSpeaker is not allowed. It will damage the respeaker.

Install driver

The AC108 codec is not supported by Pi kernel builds currently, we have to build it manually.

sudo apt-get update
sudo apt-get upgrade
git clone https://github.com/respeaker/seeed-voicecard.git
cd seeed-voicecard
sudo ./install.sh
reboot

  • Step 3. Then select the headphone jack on Raspberry Pi for audio output:

sudo raspi-config
# Select 7 Advanced Options
# Select A4 Audio
# Select 1 Force 3.5mm (‘headphone’) jack
# Select Finish

BONUS: Play with APA102 LEDs

Each on-board APA102 LED has an additional driver chip. The driver chip takes care of receiving the desired color via its input lines and then holding this color until a new command is received.

  • Step 1. Activate SPI:
    • sudo raspi-config
    • Go to “Interfacing Options”
    • Go to “SPI”
    • Enable SPI
    • Exit the tool
  • Step 2. Get APA102 LEDs Library and examples

pi@raspberrypi:~ $ cd /home/pi
pi@raspberrypi:~ $ git clone https://github.com/respeaker/4mics_hat.git
pi@raspberrypi:~ $ cd /home/pi/4mics_hat
pi@raspberrypi:~/4mics_hat $ sudo apt install python-virtualenv 
pi@raspberrypi:~/4mics_hat $ virtualenv –system-site-packages ~/env 
pi@raspberrypi:~/4mics_hat $ source ~/env/bin/activate 
(env) pi@raspberrypi:~/4mics_hat $ pip install spidev gpiozero

  • Step 3. Then run the example code under virtualenv, now we can see the LEDs blink like Google Assistant.

(env) pi@raspberrypi:~/4mics_hat $ python pixels_demo.py

There is a LOT more you can do with this board but I will leave that for you to discover. There is a great WiKi on this over at the Seeed Studio website.

The main reason for me wanting to install the Respeaker is that there are two programs that I used on a regular basis that require a microphone to work and this is the perfect solution for my needs. Those programs are:

Both are easy to install and I will show you how to install both of these in a future video.

Final Thoughts:

The Respeaker is a great add-on for the Raspberry Pi. It is expensive but it has a lot to offer. For all of my future projects, this seems for now to be a good choice. See you next week!