Hi,
Complete arduino newb and want to use this reed switch I already have MK04 Reed Sensors It doesn't look like they make the exact model anymore (MK4-1A71-BV10102), but its a 1A/Form A with 2 wires. Can I connect two wire sensors to Arduino or have to be 3 wires? I think maybe I can do it this way, but don't want to fry anything. bildr » Simple Temperature With Thermistor + Arduino Or maybe don't connect 5v because magnet generates power?
Also have this flow meter http://www.digmesa.com/wp-content/uploads/2014/01/FLOW-SENSOR-FHKSC.pdf Can I do it like this? Seeedstudio Forum • View topic - Tutorial: Reading Water Flow rate with Water Flow Sensor What I am not sure is the voltage, it says it is 20v or 24v. I don't know how that affects things since Arduino 5v.
Thanks for any help!
