diff --git a/bluetooth_demo_L08_NSDK/pages/index/index.js b/bluetooth_demo_L08_NSDK/pages/index/index.js
index 552798b..2f2ce14 100644
--- a/bluetooth_demo_L08_NSDK/pages/index/index.js
+++ b/bluetooth_demo_L08_NSDK/pages/index/index.js
@@ -203,7 +203,6 @@ Page({
 						let buf = new Uint8Array(str.match(/[\da-f]{2}/gi).map(function(h) {
 							return parseInt(h, 16)
 						}))
-						console.log("buffer", j, str, buf)
 						wx.writeBLECharacteristicValue({
 							deviceId: deviceId,
 							serviceId: serviceId,