I'm about to send of a design for some nice flexible I2C backpack PCB's and just need to clear up issue over the backlight connections. I've found and seen lots of conflicting information on this. A post on here saying there are two 15mA LED's fed via a 10R, with Vcc intended at 3.3 v to provide …

LCD 1602A Modules - LED Backlight Clarification

floresta January 8, 2013, 2:35pm 8

How is no resistor providing the broadest means?

Bill - you seem to forget that he feels that you don't need the series current limiting resistors at all.

Don

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