diff --git a/server.js b/server.js
index 1d84d35..f94d5bd 100644
--- a/server.js
+++ b/server.js
@@ -52,11 +52,14 @@ sensehat.led.loadImage('images/heart.png')
 // socketio 服务
 const io = require('socket.io')(server, { cors: { origin: '*' } })
 io.on('connection', (client) => {
-    client.on('operation', ({ action, x, y, color, r, g, b, pixels }) => {
+    client.on('operation', ({ action, x, y, color, pixels }) => {
         switch (action) {
             case 'clear':
                 sensehat.led.clear()
                 break
+            case 'setPixel':
+                sensehat.led.setPixel(Number(x), Number(y), color)
+                break
             // case 'on':
             //     sense.setPixel(Number(x), Number(y), color_blue)
             //     leds[y][x] = 1