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14 Feb 2012

Kerry uses a DIY serial display to show debugging data sent from an Arduino’s UART. Sometimes the data comes too fast to read, so he added a 4K buffer and controls to scroll thorough the history. [via]

…if your application generates a lot of messages, it would still be hard to spot the relevant information as you can only see the last couple of lines of the data.

So my solution is to add a none-volatile off-screen buffer to the serial display so that multiple rows of data can be captured during run time and retained for later debugging.

Serial port monitor with 2×20 LCD and 4K text buffer - [Link]

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