From 92882df355c065e80b4e13de9e30f44f514d28ed Mon Sep 17 00:00:00 2001
From: Seppe De Loore <seppe@smashconsult.be>
Date: Sat, 29 Aug 2026 10:57:28 +0200
Subject: [PATCH] [update] Make SSID unique with last 4 MAC digits.

---
 src/main.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/main.cpp b/src/main.cpp
index 58fae4c..ec538c5 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -597,7 +597,11 @@ void setup() {
     FastLED.addLeds<WS2812B, LED_PIN, GRB>(leds, NUM_LEDS);
     FastLED.setBrightness(currentBrightness);
     pinMode(ENC_SW, INPUT_PULLUP);
-    WiFi.softAP(WIFI_SSID, WIFI_PASSWORD);
+    WiFi.mode(WIFI_MODE_AP);
+    String apMac = WiFi.softAPmacAddress();
+    apMac.replace(":", "");
+    String ssid = String(WIFI_SSID) + "-" + apMac.substring(apMac.length() - 4);
+    WiFi.softAP(ssid.c_str(), WIFI_PASSWORD);
     server.on("/", handleRoot);
     server.on("/save", HTTP_POST, handleSave);
     server.begin();