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I poked thru the web and this forum, a few posts but not exactly this question.. I want to send some special characters to the LCD, its working fine with text so far. I am building a "meter" and want the lower line of a 4x20 lcd display to be blocks from 0 to 20 blacked in, depending on my power input to the ADC, which I have working and printing out the data in text on line 0. I read the lcd_driver.h file.. but I didnt understand where I could put the lcd into a mode to write it such as in this example http://www.circuitvalley.com/2012/02/lcd-custom-character-hd44780-16x2.html any push in the right direction appreciated! thanks Chuck