diff --git a/sensehat.js b/sensehat.js
index 607db47..2638e0b 100644
--- a/sensehat.js
+++ b/sensehat.js
@@ -1,6 +1,7 @@
 const express = require('express')
 const socketio = require('socket.io')
-// const CronJob = require('cron').CronJob
+const CronJob = require('cron').CronJob
+const request = require('request')
 const sense = require('sense-hat-led').sync
 const app = express()
 const server = app.listen(3000, '0.0.0.0', () => console.log('server is running'))
@@ -9,14 +10,17 @@ app.use(express.static('public'))
 sense.setRotation(180)
 sense.lowLight = true
 
-// const job = new CronJob(
-//     '0 * * * * *',
-//     async () => {
-//         // 测试 http://zhao 的连通性
-//     },
-//     null,
-//     true
-// )
+const job = new CronJob(
+    '*/5 * * * * *',
+    async () => {
+        // 测试 http://zhao 的连通性
+        request('http://zhao', (err, res, body) => {
+            console.log(err, res)
+        })
+    },
+    null,
+    true
+)
 
 const blue = [0, 0, 255]
 const leds = [