Smart Clocks is an ESP8266 d1 mini based clocks that can measure air temperature and humidity. I used to think that people don't need just the clocks and I was right. You can just take your smartphone or laptop and look at the time. But the thing you're not able to look on your smartphone is air humidity and temperature. People don't need just clocks, they need a clocks with an additional feature. This is why I made these smart clocks.

The DHT22 measures air temperature and humidity, this is why I named it "Smart".

TFT LCD 1.8 inch screen displays all the information about time, air humidity and temperature.

The ESP8266 has entry to the network, esp8266 parses information about date and time. Also esp8266 gets information about air temperature and humidity.

Supplies

ESP8266 d1 mini x1;
DHT22 x1;
ST7735 TFT LCD 1.8 inch screen x1;
Resistor 560 ohm x1;

If you haven't BOOT button on your esp8266 board, you will need to solder or connect GPIO0 to GND using 560 ohm resistor, exception if your code uploads automatically.

Step 1: How It Works?

I attempt to easy explain how it works.

ESP8266 d1 mini connects to the network, then it sends request to NTP server. NTP server knows time and date and sends data to the esp8266 back. ESP8266 d1 mini receives the data.

Step 2: Install and Configure Arduino IDE *Optional

If you have never used Arduino IDE, you will need to download and install it. We'll need to download and install Arduino IDE to upload the code into a microcontroller.

ATTENSION!!! Do not download 2.x versions, at the moment of 12/4/2023 there are still a lot of bugs. It better to download a 1.8.19 version.

Download it here - https://www.arduino.cc/en/software

After Installing, navigate to File > Preferences
Find Additional Boards Manager URLs, and paste this link into a text field - http://arduino.esp8266.com/stable/package_esp8266com_index.json
Then, navigate to Tools > Board: > Boards Manager
Type the "esp8266" in a search field, find and Install.