Working on the tracker is not too difficult, as it uses off-the-shelf technology and is based on equipment that is used to track pallets in warehouses. Creator Mark O’Neill claimed that the readers that will pick up a signal from the kit will remain connected to Raspberry Pi computers, and these computers in turn log the readings.
Such a device boasts of a reach of up to 2.5m (8.2ft), which is a vast improvement when you take into consideration how previous models were restricted to a mere 1cm (0.4in), how about that for progress? The tracker itself is composed of a standard RFID (radio frequency identification) chip as well as a custom designed aerial.