Hi, I need help with determining the transistor needed to power about 17 solenoid valves with a Raspberry Pi which produces 3.3V. I have made this diagram with the circuit:
(There will be 17 connections to GPIO pins on the Raspberry Pi, 17 transistors and 17 solenoids)
I need to know how to work out the transistor needed. Also, will any 12v power supply suffice? And do I need a resistor in this circuit?
Thanks for any help.
(There will be 17 connections to GPIO pins on the Raspberry Pi, 17 transistors and 17 solenoids)
I need to know how to work out the transistor needed. Also, will any 12v power supply suffice? And do I need a resistor in this circuit?
Thanks for any help.