This document describes the design and implementation of a smart parking system using wireless sensor networks. It includes block diagrams of the transmitter and receiver sides which use IR sensors, microcontrollers, and displays. It also lists and describes the hardware modules used, including power supplies, sensors, microcontrollers, displays, and communication modules. Sample code is provided for configuring the UART, transmitting data, and initializing and writing to an LCD display. References used in the project are listed at the end.