diff --git a/sensehat.js b/sensehat.js
index da8a161..2622b74 100644
--- a/sensehat.js
+++ b/sensehat.js
@@ -9,23 +9,35 @@ sense.setRotation(180)
 sense.lowLight = true
 
 const blue = [0, 0, 100]
-flash()
+const leds = [
+    [0, 0, 0, 0, 0, 0, 0, 0],
+    [0, 0, 0, 0, 0, 0, 0, 0],
+    [0, 0, 0, 0, 0, 0, 0, 0],
+    [0, 0, 0, 0, 0, 0, 0, 0],
+    [0, 0, 0, 0, 0, 0, 0, 0],
+    [0, 0, 0, 0, 0, 0, 0, 0],
+    [0, 0, 0, 0, 0, 0, 0, 0],
+    [0, 0, 0, 0, 0, 0, 0, 0],
+]
 io.on('connection', (client) => {
     client.on('action', ({ action, x, y }) => {
         console.log({ action, x, y })
         switch (action) {
             case 'on':
                 sense.setPixel(Number(x), Number(y), blue)
+                leds[y][x] = 1
                 break
             case 'off':
                 sense.setPixel(Number(x), Number(y), [0, 0, 0])
+                leds[y][x] = 0
                 break
             case 'hello':
                 sense.flashMessage('HELLO', 1, blue)
                 sense.clear()
                 break
             case 'flash':
-                flash()
+                sense.clear([255, 255, 255])
+                setTimeout(sense.clear, 10)
                 break
             case 'clear':
                 sense.clear()
@@ -36,7 +48,10 @@ io.on('connection', (client) => {
     })
 })
 
-function flash() {
-    sense.clear([255, 255, 255])
-    setTimeout(sense.clear, 10)
+function read_led(x, y) {
+    sense.getPixel(x, y)
+}
+
+function read_all_leds() {
+    const a = sense.getPixels()
 }