Pcf8574 Schaltung. Ein kanal wird eingeschaltet indem der jeweilige ausgang per i2c bus auf low gesetzt wird. Filename size file type python version upload date hashes.
Library to use i2c pcf8574 ic with arduino and esp8266. The pcf8574 keeps the gpio states as the esp reboots as long as power is not disconnected. The maximum current sourced of sunk on any pin is 20ma however the chip can only source or sink a maxmum on 100ma.
I try to simplify the use of this ic with a minimal set of operation.
Different from other i2c chips the pcf8574 has no register instead a byte to specify the address on that chip to write to is always used to control the io. Filename size file type python version upload date hashes. Wer schon einmal unter chronischem pinmangel in einer seiner applikationen gelitten hat weiss was gemeint ist. 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.
