Multifunctional LED clock based on ESP32

Introduction: Multifunctional LED clock based on ESP32
1. Product introduction

This product is an LED clock based on ESP32, which can be programmed to connect to smart home devices such as WiFi and Bluetooth.


2. Application Scenarios

The application scenarios include desktop clocks and various scenarios where 4-bit data needs to be displayed.


3. Product Overview

This product is a 4-digit LED clock developed based on the ESP32 module, which can be powered by USB or 4 1.5V dry batteries; the ESP32 module has WiFi and Bluetooth functions, allowing the LED clock to access the home wireless network or smart home through WiFi The system system and the function of connecting the mobile phone through Bluetooth to control the 4-digit LED with the mobile phone (requiring the development of a separate mobile phone App); in addition to displaying the time, it can also perform timing, and can display various parameters such as temperature with the smart home system; the LED clock is designed with a bee The buzzer has functions such as alarm clock and time reminder. It can be expanded to achieve more functions through subsequent secondary development.


4. Product parameters

1. Download interface: type-c

2. Power supply voltage: DC-5V

3. Battery power supply: 4.5V~7V (4 No. 7 dry batteries)

3. Wireless connection: WiFi, Bluetooth

4. Product size: 93mm *206mm double-layer board design with double-sided layout


5. Instructions for use

Please see the attachment "LED Clock Usage Tutorial" for detailed product instructions (software burning - text and picture tutorial).

Note: When welding ceramic LED lamps, you need to pay attention to the polarity. When purchasing ceramic LED lamps, you can buy a few spare ones at one time to prevent bad tubes and reissue time.

6. Note:

This LED clock module includes hardware and software.

Note: Ceramic LED lights and battery boxes are not included in the BOM and need to be purchased by yourself. The purchase link is in the attachment.

The attachment contains the module gerber file (this file is preferred for PCB proofing), source code routines, detailed usage tutorials, mechanical structure diagrams, purchase links for ceramic LED lights and battery boxes, and welding instructions.

Production cost: PCB board is 66 yuan, device is about 40 yuan.


7. Test video

The following video shows the LED clock module being powered on and connected to the network and the network time is displayed synchronously.