CHARLIEPLEXING¶
CHARLIEPLEXING¶
Charlieplexing is a technique used to drive multiplexed display using the tri state logic of a microcontroller.
SCHEMATIC¶
Charlieplexing vs Multiplexing?¶
Problems with Charlieplexing: - Requirement of tri state logic - Refresh rate - Cannot be used to drive higher number of LEDs - Cannot use LEDs with different forward voltages
Exercise¶
Based on the Analog Input change the number of LED which turns on
HARDWARE¶
