Use of Two MSP430s to Enhance Segment Lines for Larger LCDs
This application report explains a technique that uses two MSP430 microcontrollers to expand the maximum number of LCD segments that can be driven with a single controller. Additional benefits of the technique include increases in available memory, data storage (RAM), and I/O control lines. These benefits are realized without the need for an external LCD driver circuit. The use of a second MSP430 controller, also maintains the ultra-low power feature. The report includes a circuit schematic, software, and timing diagrams.
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