i want to use the VADJ-Output for swathing a magnet valve. i want to do it without an external relais, so i wondered if it is possible to do it via the servo pins on “Servo7” (see the screenshot). i turned the trimpot to max., jumpered for “VADJ”. but now? can you give me a sample code for this?
or is it possible to do this task via the normal I/O pins?
I’m not sure about how to wire the i/O pins to get a high voltage output.
what i did just now: VADJ-trimpot to max, on cable into the I/O-pin of D1, the other to the + pin of VADJ, executing the following code:
what my multimeter says is swathing between 5 an 10,7 V.
But what i need is a switch between 0 and 10,7 V.
So how could i reach that? What does the following instruction mean:
“You can cut a trace on the bottom of the board to disconnect them from VCC. This will leave the power pins connected to one through-hole, which can be connected to a different power source, such as VADJ, which is available elsewhere on the board.”
perhaps my english is not good enough to understand this, but I cannot see any connection between the two through-holes that i could cut. And if so, would that be the solution for what i am looking for?