SX1509 16 Kanal I/O Ausgangsmodul und Tastatur GPIO Spannungspegel LED Treiber
6,43 €
It can produce PWM signals, so you can dim LEDs. It can be set to blink or even breathe pins at varying rates. In addition, with a built-in keypad engine, it can interface with up to 64 buttons set up in an 8 x 8 matrix.
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