I've got a PIR sensor triggering a solenoid via arduino and a 2N2222 transistor. I'm running 15v into the circuit, but am only getting around 2v at the solenoid. I'm a n00b and could definately use some help in figuring out what transistor I need. I was advised to replace the 2N2222 with a relay, but the relay switches too slow.
also, the 2N2222 gets REALLY hot, so i'm quite sure i'm losing a ton of voltage to it.
Extreme n00bie, here. I am a designer in Chicago and need to get this thing project done by June 20th or I lose about $150,000 in Grad School Money. (long story).
I need a PIR sensor, when it detects movement, to trigger a programmed pattern for a push-style solenoid to play. Basically, I need the solenoid to play a basic beat or rhythm for 60 seconds when someone moves past the sensor.
Also, if completed in time, this project may be funded and installed (up to 50 of these things) locally on abandoned infrastructure in the Chicagoland area, so it's power source must be some kind of battery array. I would prefer solar, but I don't think that's feasible.