Digital Clock with DHT22 Temperature and humidity sensor

DIY Solar Jar
9月 12, 2025
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Digital Clock with DHT22 Temperature and humidity sensor

This is a full-color LED display clock. The time and color can be set via a mobile phone. It features a built-in high-precision temperature and humidity sensor to acquire local temperature and humidity data, updating every minute.

How to use this Clock?

First,the clock use 5v usb power suply,Any phone charger with a USB port can be used as its power source.

After being powered on, the clock will set itself up as a Wi-Fi hotspot named “MClock”, with the password “12345678“. You can connect to it from your phone’s Wi-Fi list.

Once you connect to the clock’s Wi-Fi, a settings webpage will automatically appear, allowing you to configure the clock.

For time settings, simply click the “Send Time” button on the webpage, and the clock’s time will synchronize with your phone’s time.

Other options include color settings, which you can customize to your liking.

There are also two display modes. The Tetris-style mode is just a fun experiment; due to the clock chip’s operating speed, the refresh rate might be a bit low, resulting in some flickering. If you think this animated clock display mode interesting, you can set it ,I usually prefer to set it to normal mode because it displays temperature and humidity.

Below is a setup demonstration video

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