From 5f852a1c059aeab84448809c04941c403fa48f58 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20G=C3=B6ttgens?= <tgoettgens@gmail.com>
Date: Tue, 3 Mar 2026 08:55:53 +0100
Subject: [PATCH] Add ADS1115 ADC to recognition as used on RAK6421 Hat (#9790)

---
 src/detect/ScanI2C.h          |  3 ++-
 src/detect/ScanI2CTwoWire.cpp | 15 +++++++++++----
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/src/detect/ScanI2C.h b/src/detect/ScanI2C.h
index 7b575dd63..f812a9c96 100644
--- a/src/detect/ScanI2C.h
+++ b/src/detect/ScanI2C.h
@@ -92,7 +92,8 @@ class ScanI2C
         SEN5X,
         SFA30,
         CW2015,
-        SCD30
+        SCD30,
+        ADS1115
     } DeviceType;
 
     // typedef uint8_t DeviceAddress;
diff --git a/src/detect/ScanI2CTwoWire.cpp b/src/detect/ScanI2CTwoWire.cpp
index c58a58518..f51dc5b5e 100644
--- a/src/detect/ScanI2CTwoWire.cpp
+++ b/src/detect/ScanI2CTwoWire.cpp
@@ -718,11 +718,18 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
                 if (len == 5 && memcmp(expectedInfo, info, len) == 0) {
                     LOG_INFO("NXP SE050 crypto chip found");
                     type = NXP_SE050;
-
-                } else {
-                    LOG_INFO("FT6336U touchscreen found");
-                    type = FT6336U;
+                    break;
                 }
+
+                registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x01), 2);
+                if (registerValue == 0x8583 || registerValue == 0x8580) {
+                    type = ADS1115;
+                    logFoundDevice("ADS1115 ADC", (uint8_t)addr.address);
+                    break;
+                }
+
+                LOG_INFO("FT6336U touchscreen found");
+                type = FT6336U;
                 break;
             }