Resistor Chip Arrays
Product name: 6-digit digital clock DS1302 clock electronic DIY parts
Product model: TJ-56-165
Working voltage: DC5V
PCB size: 110 * 59mm
Description:
This circuit is a single chip application circuit. The display part of the digital clock uses six common cathode digital tubes. The control part uses a new generation of single chip computer STC15F204EA. Its single IO port can output a current of up to 20MA, so it can directly drive the digital tube, eliminating the external triode. The internal clock of the single chip computer eliminates the external crystal oscillator. The timing uses the special clock chip DS1302. The circuit structure is simple, and all the components are directly inserted. The success rate is high. The clock chip DS1302 can also be powered by the backup battery to maintain the timing when the main power supply is powered off, so as to ensure accurate timing.
Product function:
The circuit displays the hour, minute, second, year, month, day and week in a 24-hour system, with a one-way alarm clock function. All operations and settings are controlled by three touch switches on the circuit board.
The specific operation is as follows: the digital clock is normally in the state of displaying hours, minutes and seconds. In the state of displaying time, press the "plus one" button once to display the year, month and day. Note that the year displays the last two digits, and the first two digits are fixed as 20. If 17 is displayed, it represents 2017. When the "plus one" button is pressed again, the week will be displayed, and Sunday will be displayed as the number 7. Press the "minus one" button, The set alarm time is displayed. Press the "Set" key to enter the setting state. The nixie tube displays "Fu-01", which means function 1. At this time, you can use the plus and minus keys to change the number. Fu-01 is the setting time, Fu-02 is the setting