The aim of this project is to design an oscilloscope by minimizing the hardware used, make the system as small and as fast as possible. The system is implemented using PSoC developed by Cypress Semiconductors. In PSoC, the analog and digital subsystems cohabit on the same chip. Having all the systems on the same chip reduces the cost, size, noise and increases the speed of operation. The data is transmitted to the PC via UART and plotted.