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Arduino is an open, embedded, user-programmable set of hardware components.

Use EEPROM and other memory on Arduino with wear leveling

Here is an Arduino library allowing you to write to all flash or EEPROM space with wear leveling. The library already supports multiple memory types (internal EEPROM, I2C and SPI) and can be extended very easily to support others. The memory space can be used as a space to store configuration data with wear leveling, or to read and write (at the same time) sensor data filling the whole memory space efficiently.

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Add another hardware serial port to Arduino (MAX3100 library)

A complete Arduino library for the MAX3100 serial UART/USART chip can be downloaded below. There have been many requests for an Arduino library for the MAX3100 external serial USART (UART) chip from Maxim Integrated. As an example of the minor changes needed to use the MAX3100's serial port instead of (or in addition to) the built in serial port, here is some sample code (note the lower case 's' is the only change needed to use the new serial port).

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SN74HC595 shift register simulation directly in Arduino

There exists little practical information assisting with the experimentation of '595 shift registers.  This article and below Arduino sketch aim to address this vacuum.  The sketch simulates one or more (chained) 595 shift registers on the serial monitor while simultaneously driving the IC or ICs via the Arduino's pins.  This allows concurrent theoretical and practical experimentation with the 74HC595 first-in-first-out (FIFO) shift register family.

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