Pcf8574 Schaltung. This ic can control until 8 digital devices like button or led with 2 only pins. Pcf8574 is a i2c chip which can expand io up to 8 and the initial state of io is high.
Wer schon einmal unter chronischem pinmangel in einer seiner applikationen gelitten hat weiss was gemeint ist. Im schaltplan ist nur kanal 0 dargestellt die übrigen sind vollkommen identisch aufgebaut. Filename size file type python version upload date hashes.
Der pcf8574 kann direkt an den i2c bus angeschlossen werden ggf.
Filename size file type python version upload date hashes. The maximum current sourced of sunk on any pin is 20ma however the chip can only source or sink a maxmum on 100ma. This ic can control until 8 digital devices like button or led with 2 only pins. The pcf8574 device provides general purpose remote i o expansion for most microcontroller families by way of the i2c interface serial clock scl serial data sda.
