after a break i am still fighting with the TB6612 and the valves. can you please post the schematic of your setup? i seem to be to dim to figure it out myself.
thanks a lot!

I just connected the valve directly to the power supply. Now I know what to look out for:-) With an electrolytic capacitor (1000µF, all I have right now) across the "power in" of the driver nothing happens. Or does it have to be in line or is the capacitor the wrong type?
thx
jochen

i actually only made dry tests so far. does it make a difference to add water? i tried blowing into one end to see if something would happen. ok, i’ll try with water and batteries instead of dry and with the motor shield:-)

It might be good to add that i tried with 3.6V and 5.2V

Hi, I want to use the Royal Gardiner valves with the L298N motor driver. I managed to get the code right and the drive shows the correct voltage but the valve(s) don't respond. They make a faint sound when I put my ear close but don't switch. I never heard what the switching sounds like. Perhaps you...