PS, If they still balk at the request, I'll try with my business email and letter head.
9V (no resistance nor current specs).Do you have a DMM, measure the resistance.
The specs you will need are the following:DC voltage50 millisecond pulse 6-9 volts
That photo also shows a solderless breadboard, not a soldered perfboard. Those breadboards may not be able to carry that much current.
In your diagram, what are the boxes?Where are you getting your power from?Are you boosting low voltage to a higher voltage?Are you trying to drive the DC latching valve directly from the controller?
If so, do you realize that you need MORE input current for any output current that is needed.POWER IN = POWER OUT + LOSSES.POWER IN >> POWER OUT.
The logic flow is as follows:When it's time to open the valve, I ENABLE the voltage regulator, let the regulator fill the capacitor up via resistor, then after some time (470ms), I pulse the solenoid open (a 10ms pulse to either INPUT 1 to open or INPUT 2 to close on the motor controller).
The box next to it on the left is a pololu voltage regulator that will boost the 3.3V to 9V. (https://www.pololu.com/product/2869)The box underneath is a pololu brushed dc motor controller. (https://www.pololu.com/product/2960)I am trying to boost voltage from 3.3V to 9V and pulse the solenoid open via the capacitor+resistor.
I think the values are 2,200 uF, 10ohm current limiting resistor, and 20ms to charge the capacitor (9V @ 10ohm @ 2,200 uF). Seems like I tried to charge the cap with 20ms and it wasn't enough, but I'm willing to bet it was how I had it wired. I used this calculator (https://www.allaboutcircuits.com/tools/capacitor-Charge-and-time-constant-calculator/).