Blinkenwall.com/Controller: Unterschied zwischen den Versionen
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The transceiver is used so that you can put the display data pins and | The transceiver is used so that you can put the display data pins and the buttons on the same GPIOs. It's a [https://www.ti.com/lit/ds/snos177a/snos177a.pdf 74F245]. The display is a [https://www.mouser.com/ds/2/178/16216l5-16494.pdf HDM16216L-5-LCEP]. | ||
The voltage is 5V for everything, except for the buttons. These simply pull to GND. | The voltage is 5V for everything, except for the buttons. These simply pull to GND. | ||