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USE PCF8574 FOR ESP32 INPUT PORTS

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USE PCF8574 FOR ESP32 INPUT PORTS
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#9
03-01-2023, 12:30 AM
this code is work fine, but you have changed, so your board not work well.

.zip   8574-DI.zip (Size: 650 bytes / Downloads: 565)
NOT use " PCF8574 pcf8574(0x22,4,5); "    our code is "PCF8574 pcf8574(0x22);"
I have told you need set pin define in your arduino config file:
we use NodeMcu-32S board, so do as these photos will be work fine:
   
   
   
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Messages In This Thread
USE PCF8574 FOR ESP32 INPUT PORTS - by GVDC - 02-01-2023, 03:41 PM
RE: USE PCF8574 FOR ESP32 INPUT PORTS - by admin - 02-02-2023, 01:05 AM
RE: USE PCF8574 FOR ESP32 INPUT PORTS - by GVDC - 02-02-2023, 12:31 PM
RE: USE PCF8574 FOR ESP32 INPUT PORTS - by admin - 02-02-2023, 01:41 PM
RE: USE PCF8574 FOR ESP32 INPUT PORTS - by GVDC - 02-02-2023, 05:49 PM
RE: USE PCF8574 FOR ESP32 INPUT PORTS - by admin - 02-05-2023, 12:55 AM
RE: USE PCF8574 FOR ESP32 INPUT PORTS - by GVDC - 02-05-2023, 07:21 AM
RE: USE PCF8574 FOR ESP32 INPUT PORTS - by GVDC - 02-28-2023, 07:43 PM
RE: USE PCF8574 FOR ESP32 INPUT PORTS - by admin - 03-01-2023, 12:30 AM
RE: USE PCF8574 FOR ESP32 INPUT PORTS - by GVDC - 03-08-2023, 09:41 AM
RE: USE PCF8574 FOR ESP32 INPUT PORTS - by admin - 03-08-2023, 10:27 AM

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