![]() Same price as other serial-only LCD backpacks!Ĭlick for a full size schematic image.Optional software contrast adjustment via a hardware hack.We retained the simple 5volt serial control that all the other guys use too. ![]() We brought it to a MINI-B jack, and also a breakout header for direct internal PC connections USB control and power is a must for use in a modern PC.We set out to kick it up a notch, and build the ultimate LCD backpack controller. Almost every open source hardware shop sells some type of display controller. It understands the Matrix Orbital command set supported by popular open source programs like LCD Smartie (Windows) and LCD Proc (Linux).Įxternal displays are common in lots of projects where a secondary display is useful or cool, such as case mods. A PIC 18F2550 receives commands from a USB or serial port and displays data on HD44780-compatible character displays.
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