In this video, we use the @Raspberry Pi Zero 2 W to build a YouTube subscriber counter with a MAX7219-based 8-digit 7-segment display.
The Raspberry Pi Zero 2 W is the successor to the Raspberry Pi Zero W. Its RP3A0-AU CPU is a System-in-Package (SiP) combining a BCM2710A1 die with 512 MB of RAM. So, the Zero 2W is a quad-core ARM Cortex-A53 Raspberry Pi 3 like board whereas the Zero W is a single-core ARM11 Raspberry Pi 1.
In many cases, the Zero 2 W can be used as a drop-in replacement for the Zero W and when doing so it will greatly speed up the host application. It is about 5 times as fast as a Zero W. According to Raspberry Pi, the Zero 2 W has about 85% of the performance of a Raspberry Pi 3.
0:32 Presenting the Raspberry Pi Zero 2 W
1:43 Speed test
2:33 Build a YouTube subscriber counter
3:17 Get account data from YouTube
4:40 Add a MAX7219-based 7-segment display
5:56 Use the luma.core library
6:36 Assemble all the parts
6:49 Create a systemd service for start-up
7:13 Get the files
7:28 Thank you for watching
– Buy a Raspberry Pi Zero 2 W: https://www.elektor.com/raspberry-pi-zero-2-w
– In-depth review of Raspberry Pi Zero 2 W: https://www.elektormagazine.com/news/raspberry-pi-zero-2-w
– Project files: https://github.com/ClemensAtElektor
– This project is based on https://www.instructables.com/id/Raspberry-Pi-YouTube-Counter
– MAX7219 driver (luma.core) for Python: https://max7219.readthedocs.io/en/latest