From dade822084069dc5efbca3403147abe4fb395f8b Mon Sep 17 00:00:00 2001
From: soapysoltionss <2200754@sit.singaporetech.edu.sg>
Date: Mon, 27 Nov 2023 01:39:50 +0800
Subject: [PATCH] edit README.md barcode

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 374217d..569f751 100644
--- a/README.md
+++ b/README.md
@@ -66,4 +66,6 @@ The final version of the magnetometer uses a **moving average filter** to smooth
 
 ## Barcode (Line) Sensor
 
+The barcode sensor uses edge interrupts to trigger the barcode sensor when the sensor hits a black line, which then measures the width of the black line to white, and stores it in an array. The Code39 barcode library is used as a reference for the barcode decoding function.
+
 ## WiFi (Web Server) Module