want to reach 0.1hz with my arduino uno . some help ?
some help ?
At one cycle per 10 seconds, you have to bit bang PWM.
fared:
want to reach 0.1hz with my arduino uno . some help ?
Easily achievable. Are you making a clock?
the project is a dosing pump . 10 second one cycle . thanks for help
Then just make a software PWM. Or, if it's that slow, most people will just call it blink 
See Pulse-width modulation - Wikipedia.
For very low frequencies, you just need to turn the pump on and off as required. For example, using delay().
What timing accuracy do you need?
Could you share a link to the dosing pump?