diff --git a/src/device/autoDetect/ScannedI2C.tsx b/src/device/autoDetect/ScannedI2C.tsx
index d937c7d..915a29b 100644
--- a/src/device/autoDetect/ScannedI2C.tsx
+++ b/src/device/autoDetect/ScannedI2C.tsx
@@ -21,7 +21,7 @@ export default function ScannedI2C(props: Props){
   const [subtypeOptions, setSubtypeOptions] = useState<Array<Subtype>>([])
   const [selectedPrimaryType, setSelectedPrimaryType] = useState<quack.ComponentType>(quack.ComponentType.COMPONENT_TYPE_INVALID)
   const [selectedPrimarySubtype, setSelectedPrimarySubtype] = useState(0)
-  const [added,setAdded] = useState(false)
+  const [added, setAdded] = useState(false)
   const [addressInUse, setAddressInUse] = useState(false)
 
   useEffect(()=>{
@@ -80,7 +80,7 @@ export default function ScannedI2C(props: Props){
 
   const componentSelected = (event: React.ChangeEvent<HTMLInputElement>, checked: boolean) => {
     let toAdd: Component[] = []
-    setAdded(true)
+    setAdded(checked)
     //build a component with given information and defaults for the rest
     let primaryComponent = Component.create()
     primaryComponent.settings.type = selectedPrimaryType
@@ -120,6 +120,7 @@ export default function ScannedI2C(props: Props){
               {types.map((type, i) => {
                 return (
                   <FormControlLabel
+                    disabled={added}
                     key={i}
                     value={type}
                     control={<Radio />}
@@ -132,6 +133,7 @@ export default function ScannedI2C(props: Props){
           <Grid2 size={8}>
             {subtypeOptions.length > 0 &&
               <TextField
+              disabled={added}
               value={selectedPrimarySubtype}
               fullWidth
               onChange={(event)=>{
@@ -152,7 +154,7 @@ export default function ScannedI2C(props: Props){
                 <Checkbox 
                   value={added}
                   onChange={componentSelected}
-                  //disabled={addressInUse}
+                  disabled={addressInUse}
                 />
               }
             />