From 777eacdfc355588e0cfb611f9d147049d5b7c72d Mon Sep 17 00:00:00 2001
From: "Earle F. Philhower, III" <earlephilhower@yahoo.com>
Date: Tue, 24 Sep 2024 06:58:41 -0700
Subject: [PATCH] Wire probe clock stretch up to 500us (#2493)

As reported by @Rasmusfk in #2455, allow for a longer
clock stretch period during probes.
---
 libraries/Wire/src/Wire.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/Wire/src/Wire.cpp b/libraries/Wire/src/Wire.cpp
index c729878c9..5646fc9d0 100644
--- a/libraries/Wire/src/Wire.cpp
+++ b/libraries/Wire/src/Wire.cpp
@@ -291,7 +291,7 @@ size_t TwoWire::requestFrom(uint8_t address, size_t quantity) {
 }
 
 static bool _clockStretch(pin_size_t pin) {
-    auto end = time_us_64() + 100;
+    auto end = time_us_64() + 500;
     while ((time_us_64() < end) && (!digitalRead(pin))) { /* noop */ }
     return digitalRead(pin);
 }