Hi. I decided to start a small project, which is my second, that is slightly more complicated than the previous.
What im planning to make is a security system on my stairs so that when my little sister tries to go up all by herself, it starts beeping. To get pass, one has to press a button that is out of her reach, and it gives one about 5 seconds to go unnoticed. It has to use very little power because the only source its going to have are a few batteries.
Now as i am completely new to the electronics market, and i have a few questions to you.
1.I know there a ton of diffrent techniques to detect if there is an obstacle between 2 detectors, but what is the cheapest, most efficient in energy usage and smallest one i can buy? I was trying to look on some sites but i didnt really know what im looking for because all the components have their unique names that i dont know of.
2. Do you think its better to make a circut out of raw components(which i would prefer, becuase its really cool) or get arduino and program everything onto a chip?
What im planning to make is a security system on my stairs so that when my little sister tries to go up all by herself, it starts beeping. To get pass, one has to press a button that is out of her reach, and it gives one about 5 seconds to go unnoticed. It has to use very little power because the only source its going to have are a few batteries.
Now as i am completely new to the electronics market, and i have a few questions to you.
1.I know there a ton of diffrent techniques to detect if there is an obstacle between 2 detectors, but what is the cheapest, most efficient in energy usage and smallest one i can buy? I was trying to look on some sites but i didnt really know what im looking for because all the components have their unique names that i dont know of.
2. Do you think its better to make a circut out of raw components(which i would prefer, becuase its really cool) or get arduino and program everything onto a chip?