This application was developed for a graduation project for the Computer Enginnering course at University of São Paulo (USP), São Carlos campus. The title of the project is Implementation of a low cost Oscilloscope with graphical display on an Android application, and the final report (in Brazilian Portuguese) is available here.
This Android application is used for viewing the waveform of the input signal of the hardware unity (repository). Communication with that unity is done through a Bluetooth connection, SPP profile.
Some functionalities were implemented based on the ones found on a commercial oscilloscope, such as triggering, variable time display scale and adjustable holdoff time, all accessible and configurable through the mobile application.
2kHz sine wave:
Charging a 1μF capacitor in series with a 1kΩ with a 3V step pulse:
