WiFi Sync Clock 2

prusaprinters

<h3>Two hand analog clock with automatic time adjustment using NTP via WiFi.</h3><h3>Contrary to the former <a href="https://www.thingiverse.com/thing:5457127">WiFi Sync Clock</a>, this clock works normally with monotonic CW rotation (except origin alignment once a day).</h3><ul><li>It resets the position of hands once a day at 0:00 (and initialization period after power on). The hands of the clock rotates CCW (counter clockwise) and stopped mechanically at 0:00.</li><li>Owing to the special hook mechanism, it can precisely align the position of the hands.</li><li>ESP32 microcontroller connects to the time server (ntp server) via WiFi.</li></ul><h3>Video</h3><figure class="media"><oembed url="https://youtu.be/No94BHSxV4A"></oembed></figure><h3>You need</h3><ul><li>ESP32 based micro controller with WiFi. I used "MH-ET LIVE MiniKit" type ESP32-WROOM-32 board (around 5USD).</li><li>28BYJ-48 geared stepper motor and its driver circuit (around 3USD)</li><li>M2 and M3 tapping screws</li></ul><figure class="image"><img src="https://media.printables.com/media/prints/278984/rich_content/adb041ae-8f69-46ff-80ab-28195fc3132c/parts.jpg#%7B%22uuid%22%3A%227966df94-6281-4f65-88d2-54257b60fdd3%22%2C%22w%22%3A2544%2C%22h%22%3A1000%7D"></figure><h3>How to make</h3><ul><li>Print all parts with supplied posture. No support needed.</li><li>Remove debris and blobs from the parts well. Especially, all axes of hands should be smooth.</li><li>Please be careful not to use too long screws.</li></ul><p><img src="https://cdn.thingiverse.com/assets/db/97/c1/1e/e8/128aee13-7c55-419e-af96-b4d82ef2f238.jpeg"></p><p>&nbsp;</p><p><img src="https://cdn.thingiverse.com/assets/ef/d3/fc/d0/42/4d42fe49-fb33-4a07-8cf3-a4898fc6159f.jpeg"></p><p><img src="https://cdn.thingiverse.com/assets/cb/90/9b/54/86/27d9af73-55c5-4915-8cb0-97563fddb583.jpeg"></p><p><img src="https://cdn.thingiverse.com/assets/3a/a5/44/d2/f7/dd4388f4-100b-468a-8e73-05e75558be47.jpeg"></p><p><img src="https://cdn.thingiverse.com/assets/c3/57/34/30/f9/6d0ef7c3-b78a-4a33-b8fa-6c5571b1894c.jpg"></p><p>How to use&nbsp;</p><figure class="image"><img src="https://media.printables.com/media/prints/278984/rich_content/1ac2d09c-5aba-4a12-b78e-a6beadd8f386/screen-shot-2022-08-18-at-123546.jpg#%7B%22uuid%22%3A%22f1706f0c-7037-4b89-b4a2-3f6c714eed85%22%2C%22w%22%3A2612%2C%22h%22%3A1342%7D"></figure><p><img src="https://cdn.thingiverse.com/assets/8f/9c/17/53/e3/9db0e47a-22f7-448b-b58f-e07a9283e031.png"></p><h3>WiFi setting</h3><p>You can configure your WiFi to the micro controller by two ways : Smartconfing or Hard coding.</p><h3>Smartconfig</h3><p>1 Set<strong>true</strong> to the flag named WIFI_SMARTCONFIG at line #7 in the source code,</p><p>#define WIFI_SMARTCONFIG true then compile and flash it to the micro controller.</p><p>2 Install the apps for setting WiFi. The apps are at</p><ul><li>Android: <a href="https://play.google.com/store/apps/details?id=com.khoazero123.iot_esptouch_demo&amp;hl=ja&amp;gl=US">https://play.google.com/store/apps/details?id=com.khoazero123.iot_esptouch_demo&amp;hl=ja≷=US</a></li><li>iOS: <a href="https://apps.apple.com/jp/app/espressif-esptouch/id1071176700">https://apps.apple.com/jp/app/espressif-esptouch/id1071176700</a></li></ul><p>3 Power on the clock and wait for a minute. The status of WiFi connection is indicated by the motion of the second hand.</p><ul><li>Large reciprocal motion : connecting to WiFi using previous setting stored in non-volatile memory.</li><li>Small reciprocal motion : SmartConfig mode. If 30 seconds of WiFi connection trial fails, it automatically moves to the the smartConfig mode (waiting for the configuration from smartphone app.)</li></ul><p>4 Set the password of your WiFi using the app as shown above.</p><p><strong>Please not that your smartphone should be connected to 2.4GHz WiFi.</strong> Configured WiFi settings are stored in non-volatile memory and are kept even when the power is turned off.</p><h3>Hard coding</h3><p>1 Set<strong>false</strong> to the flag named WIFI_SMARTCONFIG at line #7 in the source code,</p><p>#define WIFI_SMARTCONFIG false 2 Then you can set SSID and password of your WiFi in the source code directly at lines #11-12,</p><p>#define WIFI_SSID "SSID" // your WiFi's SSID #define WIFI_PASS "PASS" // your WiFi's password 3 Compile and flash it to the micro controller.</p><p>Category: Gadgets</p>