In order to connect the displays in cascading mode, the data output pin (Dout) of one is connected to data input pin (Din) of the other display. All the displays are connected to the same CS pin.
This setup will provide a frequency of (45000000/255*692) = 255 Hz and we can vary the duty cycle to observe the changes in the sound of the buzzer.
We can adjust delay time to Set how long the output remains high after detecting motion…. Anywhere from 5 seconds to 5 minutes. Similarly sensitivity adjusts the range from 3 to 7 meters.
Retrigger setting jumper is to set for single or repeatable jumpers.
RTC can be used for chronometers, alarm clocks, watches, small electronic agendas, and many other devices and today we are going to learn HOW to access internal RTC in STM32.