From 3b108eedbe63c6ada2c4c74188a483146c609dc6 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 4 Jun 2026 08:27:52 +0000
Subject: [PATCH 1/2] Initial plan


From eee89fd20aa5dbc8fec86d35244d029b97e169d1 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 4 Jun 2026 08:29:52 +0000
Subject: [PATCH 2/2] Fix rollover-unsafe millis() timeout in
 scannerGraphic.ino

Replace `unsigned long inputTimeout = millis() + 7000` / `millis() < inputTimeout`
with a subtraction-based elapsed-time check:
`unsigned long inputTimeout = millis()` / `millis() - inputTimeout < 7000`.

With unsigned arithmetic the subtraction wraps correctly across the ~49.7-day
millis() rollover boundary, so the 7-second wait is always correct regardless
of when the sketch starts.
---
 examples/scannerGraphic/scannerGraphic.ino | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/examples/scannerGraphic/scannerGraphic.ino b/examples/scannerGraphic/scannerGraphic.ino
index ddbed5a1b..8b4d2fd55 100644
--- a/examples/scannerGraphic/scannerGraphic.ino
+++ b/examples/scannerGraphic/scannerGraphic.ino
@@ -217,10 +217,10 @@ void setup(void) {
 
   // set the data rate
 #ifdef DEBUGGING
-  unsigned long inputTimeout = millis() + 7000;
+  unsigned long inputTimeout = millis();
   Serial.print(F("Select your Data Rate. "));
   Serial.println(F("Enter '1' for 1Mbps, '2' for 2Mbps, '3' for 250kbps. Defaults to 1 Mbps."));
-  while (!Serial.available() && millis() < inputTimeout) {
+  while (!Serial.available() && millis() - inputTimeout < 7000) {
     // Wait for user input. Timeout after 7 seconds.
   }
   char dataRate = !Serial.available() ? '1' : Serial.parseInt();