update

sensehat.js

@@ -27,7 +27,7 @@ read_all_leds()
 let zhao_server_errors = 0
 
 const job = new CronJob(
-    '*/5 * * * * *',
+    '*/1 * * * * *',
     async () => {
         // 测试 http://zhao 的连通性
         request('http://zhao', (err, res, body) => {
@@ -42,8 +42,10 @@ const job = new CronJob(
                 }
             } else {
                 let color = sense.getPixel(0, 0)
-                color[2] = (color[2] + 50) % 255
+                let r = color[0]
-                sense.setPixel(0, 0, color)
+                let g = color[1]
+                let b = color[2]
+                sense.setPixel(0, 0, [r, g > 0 ? 0 : 255, b])
             }
         })
     },