This is video of Arduino Timer with few functions
Code Based on This Theory: lesson-10-timer-example-code
It works like this:
1. You choose by Jumper pins – if it will count Seconds or Minuets (Pins 2 and 3 – if connected to GND => chosen)
2. You move Potentiometer to decide number between 0-100 (Sec. or Minutes) – you see the number on Serial PORT
2. You choose in SW if it will be OFF and AFTER TIME ON, or ON and After time OFF
3. You give “START” command by connecting PIN 4 – to GND
4. The output (RELAY or LED out) is pin number 7
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