The only switches I have every worked with are basic switches with on/off state, but I want to be able to add a power button to my project that is just like the power button on a cell phone. (hold for x seconds to power on, hold for x seconds to power off). It should also obviously act similarly to a momentary switch that doesn't depress or change levels when it is clicked.
I know this requires specific programming within the controller; I'm just confused about the best switch setup to accomplish this.
Do I accomplish this with a certain type of momentary switch? I am getting confused by the different types on digikey, such as this one: https://www.digikey.com/product-detail/en/e-switch/TL3315NF100Q/EG4620CT-ND/1870400
Best Answer
You have left very little information as to the type of power source you have and the type of load you mean to switch. If in the case you are dealing with a low DC voltage supply with a load of up to a couple of amperes of current the following circuit topology is suitable for toggling a load on and off with momentary TACT switch.