H3E22WZY7

LCD electronic watch

Overview

The watch is made of STC8G1K08 microcontroller, with segmented LCD display and touch buttons to set the time.
The segmented LCD screen divides the voltage through resistors and is directly driven by the GPIO of the microcontroller.
The touch buttons are implemented using microcontroller AD conversion.
Powered by 3V button battery.
The entire design is simple, low-cost, and suitable for beginners to practice microcontrollers.
The implementation method of LCD screen and touch buttons is more practical.

Video link
https://www.bilibili.com/video/BV178411H7Vm/

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-08-08 22:54:09

Lattice management distribution problem
I use lattice's ECP3 95E, which is a FBGA672 package. The design has a ddr2 sdram controller. The lattice datasheet says that for signals such as DQS , dedicated pins must be used, and they are usuall
Does anyone have the antenna test program for 2530?
The board has been made for a long time, but I can't find the open line test program for 2530 under IAR760. There is no such program in the 07 protocol stack. If anyone can give me a copy, I will be v
Pulse fast charging design for lead-acid batteries in electric vehicles
Abstract: The principle of fast charging is explained. In view of various problems that occur during battery charging, a pulse fast charging scheme with graded constant current is adopted, and the des
Concept and solution of ultra-fast battery charging
The battery of an electric vehicle can be used for about two hours, which is very inconvenient for users. It is normal to run out of power when going out. If we have a fast charger, we can quickly rep
Blackfin series ADSP512 has no flash, how to burn the program? I hope the experts can give me some advice
[size=5]Blackfin series ADSP512 has no flash, how to burn the program? I hope the experts can give me some advice[/size]
Where can I get the 430f47187 header file?
I would like to ask you guys, where can I get the 430f47187 header file?

Datasheet More

Circuits More