The digital clock is an Android desktop plugin that displays digital times and dates in the home screen. It is a simple and simple clock Widget, which can show time, touch activation alarms and calendars, and font color can be set, the interface looks very simple and generous, there is an iPhone's momentum! There are a lot of custom features, you can set millions of RGB colors for time and date, you can choose different backgrounds, you can display / hide / afternoon, choose Widget Click Operation, support multi-language and cellular tablets.
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1. DS1302 clock tape temperature acquisition display displayed by STC89C52 single-chip LCD1602
Use the STC89C52RC microcontroller as the master,
When using the DS1302 timing chip (class SPI protocol, the battery can be taken),
Use LCD1602 LCD display time and temperature
DS18B20 Digital Temperature Collection
1. The circuit diagram corresponding to the data is simple, no longer uploading the principal.
2, this information is after commissioning, then sell, as long as it does not have the wrong line basically no problem.
3, the single chip microcontroller uses 11.0592 M crystal.
4, the program corresponding to the wiring sequence, please see the picture and the program inside the SBIT.
5. If you think you can write the code of the video effect in half a day, please detour.
Scenario: https://www.cirmall.com/circuit/13706
2. Digital clock based on 51 single-chip microcomputer (schematic + source code)
Scriber + DS1302 Clock Chip + Button Module + LCD1602 Display + Power Supply
1, you can show the year, month, day, time, minute, second, week, lunar calendar
2, the button can set the alarm and alarm;
3, the button can adjust the time, showing the blood year or the leap year.
A total of 4 buttons: setting, plus, minus, switching.
All materials include procedures (notes), AD schematic, protues simulation, reference papers, program explanations, simulation explanations, simulation video, schematic explanation, data use introduction, etc., the whole network is the most complete! ! Be
Scenario Link: https://www.cirmall.com/circuit/18406
3. Digital electronic clock based on 74 series logic door
Implement the digital electronic clock by simple logic chips. The main point is to use the 555 chip connection to output a second pulse for the clock, with 74LS160 (10-enricher) 74LS00 (with non-door chip), etc., into 60 and 24-based counter, then pass Seven-stage digital tube display, constitutes simple digital electronic clock.
Design task
Design a "week" "" "" minute "," second "(23 hours 59 minutes 59 seconds) showing the electronic clocks of the news when there is a school;
Design requirements
1. CD4060 Division Dividend of 32.768 kHz crystal oscillator to obtain 1 Hz clock frequency;
2. Different seconds 00 ~ 59 即 60-year-old counterfeit counter;
3. Time 00 ~ 23, twenty-four-binary counters;
4. Week 1 ~ 7 即 seven-binary counter;
5. You can pass the four independent switches, each time, time, minute, and second.
6. At the time of the news, the last 3 seconds long after the last 3 seconds.
Scenario: https://www.cirmall.com/circuit/15052
4, Electronics Di DHT11 + DS1302 + Relay
Power module, clock module, display module, keyboard interface module, temperature measurement module, and alarm module, a total of six modules, using a non-custom library LCD12864 file with complete source code and program file plus reference papers, and self-mold extraction tools, free I didn't understand myself, and I came with contact information.
Scenario: https://www.cirmall.com/circuit/12652
5,51 single-chip computer computer service system design - DS1302- (Schematic + Program + Paper)
With the development of society, our lives are full of electronic products, our IT information talents are to solve problems. We need an analog quantity such as time and date temperature in our daily life, then we can also look at the mobile phone, look online, but can be placed at home, hanging on the wall, or posing before the desk. We can understand this information at any time to our lives. We want to see this information, you can pass the display, you need the master chip microcontroller and the clock chip. In fact, it is a number of thousands of years. This design is based on digital integrated circuit technology, and single-chip technology is the core. The software design uses a modular structure. This system displays data through 8-bit common-codes tube, which can be displayed (year, month, day, hour, minute, second, week). Set time through the serial port. In the content arrangement, the system hardware work principle is described, focusing on the functionality of each hardware interface technology and various interface modules; secondly, the various modules and implementation processes of the program are explained in detail.
The electronic menstrual period is a timing device that implements the year, month, day, time, minute, second, weekly digital display, is widely used in the personal family, station, terminal, office, bank hall and other places, etc., becomes a necessity in everyday life. The development of digital integrated circuits and wide application of quartz crystal oscillators makes the number of digital clocks far exceeding vintage clocks. The digitization of the clock has brought great convenience to people's production and life. It has high-year calendar in this basis, which is easy to expand. It can be extended to become such as timing automatic alarms, automatic ringing, time program automatic control, timing broadcast, automatic latter, timing switch oven, automatic power devices, and even automatic activation such as various timing electricals. All of this is based on a clock digit. Therefore, it is very realistic that digital clocks and expand their application have very realistic. This design is a simple extension application of digital clock.
Scenario: https://www.cirmall.com/circuit/19229
6, LED dot mailing STC8 main control + DS1302 timing + DS18B20 temperature + 74HC595 drive LED dot matrix
1. All 74HC595 driver 16 * 32 LEDs.
2, DS18B20 collection temperature.
3, DS1302 is equipped with a battery to do a clock system. You can modify the time and alarm through three buttons.
4, character modeling can be taken using any of 9 in the compressed package. Or download other software online.
5, STC8F2K16S2 single-chip microcomputer is control core. Suitable for students to do graduation design and DIY enthusiasts.
6. Data I / O portfolio can be free to change according to the actual situation of the user. Dotting direct modularization, reducing circuit welding workload. You need to buy a module to go to Qixu Electronics for purchase.
7, support USB downloads, follow-up to increase the functions such as infrared remote control.
Scenario: https://www.cirmall.com/circuit/750
7. Electrical Differential (Alarm Clock) System Design (DS1302-18B20-1602)
This paper introduces the hardware structure and software and hardware design methods based on STC89C52 single-chip microcontrollers. This design consists of four modules of data display module, temperature acquisition module, time processing module, and adjustment setting module. The system uses the STC89C52 microcontroller as the controller, with a serial clock calendar chip DS1302 record calendar and time, which can be counted in the year, month, day, time, minute, second, and have a variety of functions such as leap year compensation. Temperature capture uses the DS18B20 chip, and the long-year-old digital display is used. The data shows that the 1602 liquid crystal display module can also be displayed on the LCD1602, and the month, month, day, time, minute, second, and time calibration. This long-term experience has a wide market prospect with a wide range of market prospects.
Scenario: https://www.cirmall.com/circuit/15421
8. High-precision LED electronic clock based on STM32
characteristic:
0.8 inch large screen LED digital tube, clear display
STM32F030F4P6 microcontroller
The RTC Clock IC uses domestic SD3078, 3.3.8PPM, annual error for 2 minutes.
temperature display
Optional alarm and bell function
Optional automatic light sensing
Note: The source code is a Truestudio project file, please use the Truestudio 9.3.0 version. If you don't want to modify the source code, you can download the binary directly through ST-LINK, which is located in the debug directory.
Scenario Link: https://www.cirmall.com/circuit/18902
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Source: Circuit City
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