diff --git a/src/configuration.h b/src/configuration.h
index baf24a636..524dacdea 100644
--- a/src/configuration.h
+++ b/src/configuration.h
@@ -228,6 +228,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define ICM20948_ADDR_ALT 0x68
 #define BHI260AP_ADDR 0x28
 #define BMM150_ADDR 0x13
+#define DA217_ADDR 0x26
 
 // -----------------------------------------------------------------------------
 // LED
diff --git a/src/detect/ScanI2C.h b/src/detect/ScanI2C.h
index e7bdf58c5..cca867851 100644
--- a/src/detect/ScanI2C.h
+++ b/src/detect/ScanI2C.h
@@ -83,7 +83,8 @@ class ScanI2C
         BMM150,
         TSL2561,
         DRV2605,
-        BH1750
+        BH1750,
+        DA217
     } DeviceType;
 
     // typedef uint8_t DeviceAddress;
diff --git a/src/detect/ScanI2CTwoWire.cpp b/src/detect/ScanI2CTwoWire.cpp
index 95ae5d31e..66697c109 100644
--- a/src/detect/ScanI2CTwoWire.cpp
+++ b/src/detect/ScanI2CTwoWire.cpp
@@ -465,8 +465,23 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
                 break;
 
                 SCAN_SIMPLE_CASE(LSM6DS3_ADDR, LSM6DS3, "LSM6DS3", (uint8_t)addr.address);
-                SCAN_SIMPLE_CASE(TCA9555_ADDR, TCA9555, "TCA9555", (uint8_t)addr.address);
                 SCAN_SIMPLE_CASE(VEML7700_ADDR, VEML7700, "VEML7700", (uint8_t)addr.address);
+            case TCA9555_ADDR:
+                registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x01), 1);
+                if (registerValue == 0x13) {
+                    registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x00), 1);
+                    if (registerValue == 0x81) {
+                        type = DA217;
+                        logFoundDevice("DA217", (uint8_t)addr.address);
+                    } else {
+                        type = TCA9555;
+                        logFoundDevice("TCA9555", (uint8_t)addr.address);
+                    }
+                } else {
+                    type = TCA9555;
+                    logFoundDevice("TCA9555", (uint8_t)addr.address);
+                }
+                break;
             case TSL25911_ADDR:
                 registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x12), 1);
                 if (registerValue == 0x50) {