One of the first steps of the built is to achieve communication between the stockie tags and the main node which will be the gateway to the server. The tags are based around an attiny88 microcontroller and a NRF24l01+ radio module. The gateway will use a router coupled with an XMEGA micro controller along with a NRF24L01+ high power module and external antenna (here shown with a regular one). In this combination the communication range is sufficient throughout the average house, powerful enough to pass through two floors.