This is personal study note Copyright and original reference: https://www.youtube.com/watch?v=u2Aetf9j4S0&list=PLVsNizTWUw7HhYtI-4GGmlJ5yxNdwNI_X ================================================================================ Store large data By default, 4MB can be saved in maximum. To save larger file, you need to configure some options ================================================================================ ================================================================================ ================================================================================ ================================================================================ ================================================================================