From 5e1a34c9d7692a60b7eb53b034ad52740996354d Mon Sep 17 00:00:00 2001
From: Agent725 <agent725@725.be>
Date: Sat, 8 Nov 2025 19:55:00 +0100
Subject: [PATCH] added delay to ensure OLED is initialized upon cold boot

---
 codingExamples/screensaver.js | 79 ++++++++++++++++++-----------------
 1 file changed, 41 insertions(+), 38 deletions(-)

diff --git a/codingExamples/screensaver.js b/codingExamples/screensaver.js
index ff0fdaf..8eb364c 100644
--- a/codingExamples/screensaver.js
+++ b/codingExamples/screensaver.js
@@ -2,45 +2,48 @@
  * SCREENSAVER: bounces a nice little text over the screen
  */
 
-// offsets must be defined for correct display on screen!
-const Xoffset = 8;
-const Yoffset = 8;
+// for some reason the OLED screen needs this timeout
+setTimeout(function() {
+  // offsets must be defined for correct display on screen!
+  const Xoffset = 8;
+  const Yoffset = 8;
 
-// define the function first, before using it below
-function displayText(textString, x,y) {
-  // write some text
-  scrn.drawString(textString, Xoffset + x, Yoffset + y);
-  // write to the screen
-  scrn.flip();
-  // clear a bit of the screen in preparation before next update
-  scrn.clearRect(Xoffset + x, Yoffset + y, Xoffset + x + 30, Yoffset + y + 8);
-}
+  // define the function first, before using it below
+  function displayText(textString, x, y) {
+    // write some text
+    scrn.drawString(textString, Xoffset + x, Yoffset + y);
+    // write to the screen
+    scrn.flip();
+    // clear a bit of the screen in preparation before next update
+    scrn.clearRect(Xoffset + x, Yoffset + y, Xoffset + x + 30, Yoffset + y + 8);
+  }
 
-// MAIN FUNCTION: bounce text and flash LED (D8)
-let on = false;
-let x = 0;
-let y = 0;
-let ix = 1;
-let iy = 1;
-const txt = 'HELLO';
-function main() {
-  setInterval(function() {
-    on = !on;
-    digitalWrite("D8",on);
-    y += iy;
-    x += ix;
-    if (x > (72-(txt.length*8))) ix = -ix;
-    if (y > 34) iy = -iy;
-    if (x < 1) ix = -ix;
-    if (y < 1) iy = -iy;
-    displayText(txt,x,y);
-  }, 100);
-}
+  // MAIN: flash LED (D8)
+  let on = false;
+  let x = 0;
+  let y = 0;
+  let ix = 1;
+  let iy = 1;
+  const txt = 'HELLO';
+  function go() {
+    setInterval(function() {
+      on = !on;
+      digitalWrite("D8",on);
+      y += iy;
+      x += ix;
+      if (x > (72-(txt.length*8))) ix = -ix;
+      if (y > 34) iy = -iy;
+      if (x < 1) ix = -ix;
+      if (y < 1) iy = -iy;
+      displayText(txt, x, y);
+    }, 100);
+  }
 
-//
-// required modules/libraries (in Espruino must be included at the end due to needing functions)
-//
-I2C1.setup({scl:"D6",sda:"D5"}); // I2C setup
-// initialize the screen and its dimensions (null can be replaced by a callback)
-const scrn = require("SSD1306").connect(I2C1, main, { width:72, height:48 }); // for 72x48 LCD
+  //
+  // required modules/libraries (in Espruino must be included at the end due to needing functions)
+  //
+  I2C1.setup({scl:"D6",sda:"D5"}); // I2C setup
+  // initialize the screen and its dimensions (null can be replaced by a callback)
+  const scrn = require("SSD1306").connect(I2C1, main, { width:72, height:48 }); // for 72x48 LCD
+}, 5000);