A microchip feeder uses a special technology called a microchip or RFID tag to control a dog's access to food. The feeder has a scanner that can read the dog's microchip or RFID tag. When the dog comes close to the feeder, the scanner checks if the dog's microchip or tag matches the one registered in the feeder's system. If it's a match, the feeder opens up and dispenses the right amount of food into a bowl or tray for the dog to eat. This way, only the dog with the correct microchip or tag can eat from the feeder, keeping the food safe and preventing other animals from stealing it.