diff --git a/src/context/EstimContext.tsx b/src/context/EstimContext.tsx
index b1417db..55a0b84 100644
--- a/src/context/EstimContext.tsx
+++ b/src/context/EstimContext.tsx
@@ -2,7 +2,7 @@ import { invoke } from '@tauri-apps/api/core';
 import { listen, UnlistenFn } from '@tauri-apps/api/event';
 import { message } from '@tauri-apps/plugin-dialog';
 import { atom, PrimitiveAtom, useSetAtom } from 'jotai';
-import { atomFamily, atomWithRefresh } from 'jotai/utils';
+import { atomFamily, atomWithRefresh, RESET } from 'jotai/utils';
 import { FC, ReactNode, useEffect, useRef } from 'react';
 
 export type Channels = 'a' | 'b';
@@ -18,7 +18,7 @@ type ChannelState = {
 type PeripheralItem = {
   id: string;
   address: string;
-  represent: string;
+  represent: string | null;
   isConnected: boolean;
   rssi: number | null;
   battery: number | null;
@@ -77,22 +77,24 @@ export const DeviceState = atomWithRefresh<DeviceState>(async (get) => {
     battery: null,
   };
 });
-export const FoundPeripherals = atomWithRefresh<PeripheralItem[]>(async (get) => {
-  try {
-    const peripherals = await invoke('found_peripherals');
-    return peripherals.map((peripheral: PeripheralItem) => ({
-      id: peripheral.id,
-      address: peripheral.address,
-      represent: peripheral.represent,
-      isConnected: peripheral.isConnected,
-      rssi: peripheral.rssi,
-      battery: peripheral.battery,
-    }));
-  } catch (e) {
-    console.error('[refresh found]', e);
-  }
-  return [];
-});
+export const FoundPeripherals = atom(
+  [] as PeripheralItem[],
+  (get, set, item: PeripheralItem | typeof RESET) => {
+    if (item === RESET) {
+      void set(FoundPeripherals, []);
+    } else {
+      void set(FoundPeripherals, (prev) => {
+        const foundIndex = prev.findIndex((i) => i.id === item.id);
+        if (foundIndex !== -1) {
+          prev[foundIndex] = item;
+        } else {
+          prev.push(item);
+        }
+        return prev;
+      });
+    }
+  },
+);
 const Channels: Record<Channels, PrimitiveAtom<ChannelState>> = {
   a: atomWithRefresh<ChannelState>(async (get) => {
     try {
@@ -164,7 +166,9 @@ const EstimWatchProvider: FC<{ children?: ReactNode }> = ({ children }) => {
       try {
         unlistenBle.current = await listen('central_state_updated', () => refreshBle());
         unlistenDevice.current = await listen('peripheral_connected', () => refreshDevice());
-        unlistenPreipherals.current = await listen('peripherals_found', () => refreshPeripherals());
+        unlistenPreipherals.current = await listen('peripheral_found', (event) => {
+          refreshPeripherals(event.payload);
+        });
         unlistenChannelA.current = await listen('channel_a_updated', () => refreshChannelA());
         unlistenChannelB.current = await listen('channel_b_updated', () => refreshChannelB());
         await invoke('activate_central_adapter');
diff --git a/src/icons/IconBattery.tsx b/src/icons/IconBattery.tsx
index 3b9e5ec..f71d5d6 100644
--- a/src/icons/IconBattery.tsx
+++ b/src/icons/IconBattery.tsx
@@ -34,7 +34,6 @@ const IconBattery: FC<IconBatteryProps> = ({
       return 'material-symbols-light:battery-error';
     }
   }, [level]);
-  console.debug('[icon battery]', level, batteryIcon);
 
   return <Icon icon={batteryIcon} width={width} height={height} stroke={stroke} />;
 };
diff --git a/src/page-components/device/BleControl.tsx b/src/page-components/device/BleControl.tsx
index 073a529..626e977 100644
--- a/src/page-components/device/BleControl.tsx
+++ b/src/page-components/device/BleControl.tsx
@@ -1,16 +1,19 @@
 import { invoke } from '@tauri-apps/api/core';
-import { useAtomValue } from 'jotai';
+import { useAtomValue, useSetAtom } from 'jotai';
+import { RESET } from 'jotai/utils';
 import { FC, useCallback, useEffect, useRef, useState } from 'react';
-import { BleState } from '../../context/EstimContext';
+import { BleState, FoundPeripherals } from '../../context/EstimContext';
 import styles from './BleControl.module.css';
 
 const BleControl: FC = () => {
   const bleState = useAtomValue(BleState);
+  const setFound = useSetAtom(FoundPeripherals);
   const timerRef = useRef<number | null>(null);
   const [searchRemains, setSearchRemains] = useState(60);
   const handleStartScan = useCallback(async () => {
     timerRef.current !== null && clearInterval(timerRef.current);
     setSearchRemains(60);
+    setFound(RESET);
     try {
       await invoke('start_scan_devices');
       timerRef.current = setInterval(() => {