I'm trying to get my Wind Sensor RevP to work. Unfortunately, something seems screwy with my Arduino - I have it hooked to a 12V external power supply, but only get 3.95V out of the Vin pin. This results in "nan MPH -25 C" being the output in the serial monitor. Guides and arduino forum posts seem to make it out that this is supposed to be easy. Which it probably is if my Arduino Vin pin output 12V like it's supposed to.
Anyway, I bypassed it and simply hooked up 12V directly to the device, but forgot about current, so I'm pretty sure I cooked the wind sensor (I have backups fortunately) at 5 amps. I'm unfamiliar with how to work with transistors, but have some (BC548CTA and TIP120) on the way for other parts of the project to downstep a 160 mA device to work with arduino, and a solenoid valve to work with the arduino.
Will either of those transistors also work with the windsensor if I flip the transistor around, or do I need to figure out how to fix the Vin pin?