Issues activating IRF540 MOSFET with Arduino Digital Pins
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hello!
i'm working on electric drum kit project. i'm using 12 v, 0.91 linear solenoids striking. activated shown in circuit above.
i able irf540 mosfet activate attaching arduino uno's 5 v pin g-input of mosfet, digital pins of arduino not activate mosfet. have verified in program pins set output mode.
when 5 v pin connected mosfet's g-input, voltmeter reads 4.84 5 v pin ground.
when arduino digital pin connected mosfet's g-input, voltmeter reads 2.9 v. built-in led gets dimmer. placing 1 kohm resistor increases voltage drop 5 v, solenoid not actuate.
where did go wrong? have fried arduino or mosfet somehow? did buy wrong mosfet? missing diodes, etc. in circuit?
thanks
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irf540
this not logic level mos fet, device needs gate turn on voltage of 10-12 volts.
use irl540 or similar.
you need common gnd going arduino.
you need kickback diode across the solenoid.
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