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Tutorial: Using the Arduino’s internal EEprom to store calibration data and LCD screen fonts

Posted on Tuesday, August 28th, 2018 in Arduino, tutorials by DP

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Edward Mallon writes:

This is a follow-up to our post about using Nokia 5110 screens on three unused analog lines with shift-out. That saved me from messing with the hardware SPI bus which we reserve for the SD cards. A secondary benefit is that the code is really lean, on the order of about 250 bytes for the default font after the compile if you already have EEprom.h in the build anyway. The font, however takes up about 500 bytes, and I wanted the smallest possible footprint so that we could add live data output to loggers that are already compile near the memory limits. As it turns out, stuffing those fonts into the internal EEprom was pretty easy to do:
Using the Arduino’s Internal EEprom to Store Calibration Data & LCD Screen Fonts

More details on Underwater Arduino Data Loggers blog.

Via the comments.

This entry was posted on Tuesday, August 28th, 2018 at 11:06 pm and is filed under Arduino, tutorials. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

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