HomeHacker News Show HN: I made a tool to communicate data using the PC speaker https://ift.tt/3dBCnuA byHat hair -April 21, 2021 0 Show HN: I made a tool to communicate data using the PC speaker https://ift.tt/3syN1Xg April 21, 2021 at 11:11PM Tags: Hacker News Facebook Twitter