From d7e7abb4c5f0daaed023494bc50e187db4a9734d Mon Sep 17 00:00:00 2001
From: Ash-4 <81280775+Ash-4@users.noreply.github.com>
Date: Fri, 2 May 2025 23:51:15 -0500
Subject: [PATCH] PCF8574 output pin initialization parameter

---
 myHal.cpp_example.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/myHal.cpp_example.txt b/myHal.cpp_example.txt
index f715c63..d10f981 100644
--- a/myHal.cpp_example.txt
+++ b/myHal.cpp_example.txt
@@ -146,6 +146,13 @@ void halSetup() {
 
   //PCF8574::create(200, 8, 0x23, 40);
 
+  // Alternative form to initialize 8 pins as output
+  //  INT pin -1, when INT pin is not used
+
+  //PCF8574::create(200, 8, 0x23, -1, 255);  8 pins High
+  //PCF8574::create(200, 8, 0x23, -1, 0);    8 pins Low
+  //PCF8574::create(200, 8, 0x23, -1, 0b11000010);  
+  //                       pins listed sequentially from 7 to 0
 
   //=======================================================================
   // The following directive defines a PCF8575 16-port I2C GPIO Extender module.