Hi, I was wondering if there exists a sensor that can measure the mass of small objects (say in grams) and give an output depending on its mass (for example, output a voltage of 5V if it weighs more than 100g otherwise output 0V). I don't know if that made any sense, I'm still new to microcontrollers. Please let me know where I can find those sensors if they exist. Thanks
I'll give you the words that you feed google - "load cell"
Look for this term on the internets, ebay, here.