Large-screen Voice Clock Kit High-precision Clock Electronic DIY Welding Training Kit

Description: 
Functional characteristics: stc single-chip computer +8025+ voice playback. 
1. Simultaneously display the current date, week, time and temperature for easy viewing. 
2. Large-size digital tube display (date, week 0.8 inches; time 1.0 inches; temperature 0.56 inches). 
3. Time and temperature precision: 
The time IC uses RX-8025AC, with a built-in frequency adjustment 32.768khz crystal oscillator ±5*10-6. 
The temperature IC is DS18B20 with an error of 0.5°C. Positive and negative temperature display, positive temperature display accuracy is 0.1℃, negative temperature display accuracy is 1℃. 
4. Gregorian calendar and lunar calendar display and switch automatically (10s). 
5. Voice timekeeping function (automatic timekeeping on the hour, manual timekeeping by pressing the button). 
6. Hourly timekeeping function: the hourly timekeeping function can be turned on and off. 
7. Alarm clock function: turn on and off the alarm clock function. 
8. Countdown function (maximum countdown time 99 hours 99 minutes 250 seconds). 
9. Brightness automatic adjustment function (from 7 am to 9 pm, daytime brightness; 10 pm to 6 am, night brightness). 
Without shell size: 180mm *26mm * 80mm(length* wide *high). 
With shell size: 180x82x25mm. 
Weight with case: 295g. 
Working voltage: 5V (powered by mobile phone charger and Android data cable, power bank, usb port). 
 
Package included: 
1 x clock production kit