Hello.
This is Huchu’s dad from Coding Beginner Rescue.
On the latest Raspberry Pi OS, pigpiod is not installed by default, so you may see the following message while doing the PWM exercises in the course.
$ sudo systemctl status pigpiod
Unit pigpiod.service could not be found.
Since the PWM exercise uses the pigpio library, please install and run pigpiod in the following order.
$ sudo apt update
$ sudo apt install -y git build-essential
$ git clone https://github.com/joan2937/pigpio.git
$ cd pigpio
$ make
$ sudo make install
$ sudo ldconfig
After installation, run pigpiod with the command below.
$ sudo pigpiod
You can check whether it is running properly with the command below.
$ pgrep pigpiod
If a number is displayed, it is running normally.
You can then run the PWM practice code as shown in the lecture.
If the same issue occurs during the practice, please leave a post on the Q&A board, and we will assist you.
Thank you.
Sincerely, the Coding Beginners Rescue Team