The TLC5940 is a 16-channel LED control chip using PWM with 12-bit resolution. It is controlled via 3-wire serial (weird, neither I2C nor SPI). The chips cost three bucks each.
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The TLC5940 is a 16-channel LED control chip using PWM with 12-bit resolution. It is controlled via 3-wire serial (weird, neither I2C nor SPI). The chips cost three bucks each.