Currently I am using an Arduino Uno rev3 to control an LED strip (WS2812B) from a bluetooth module. The commands sent to the bluetooth module are sent in Char format as I found these more stable than using int format.
When the Char is received (W, X, Y, Z etc), the led strip changes to a new display sequence. When I turn the Arduino on the code obviously starts for the first time - I want to be able to store the last selected sequence at power up, so need to store the Char in an EEPROM so I can read it to get the last Char that was written to it. I was reading this post here (http://www.gammon.com.au/forum/?id=10896) and it has an example on how to do this by using an 24LC256 chip. As the Arduino has a built in EEPROM this should also be possible without needing to use that extra chip, but I can't see an example of Storing a Char in the example - only an int.
Is this possible, or will I need to use an 24LC256 to do this? Also is there any example code available on how to do this? Thanks.