DIY Electronic Clock kit 6 bit Digital Circuit Clock Production kit Skill Contest Training Materials for Adults
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About this product
*Product describe:This circuit uses a quartz crystal oscillator as the time base pulse oscillator, and obtains the second time base signal after digital frequency division. The time is displayed by the counter, decoder and display. Because the crystal oscillator is used as the time base pulse, so the time is accurate.
*circuit:Second, minute, and hour counter circuits use double BCD synchronous up counter CD4518 to count and output BCD code. The BCD code displays the corresponding number through CD4511. The second and minute counters are 60-digit count and 24-hour count.
*PCB:130x70mm double side. input voltage:5V.The circuit does not have a power-off memory time function, and the time needs to be recalibrated after power-off.
*Required tools: electric iron: 30W-40W, solder wire: 0.8-1mm, Melting point is about 183 degrees Celsius.tweezers, oblique pliers, multimeter.
*Suitable for electronic DIY electronic hobby beginners to learn and practice welding.It is widely used in schools to help students learn basic mechanical and electronic skills.
Description
Resistor 510?: R1-R44Â
Resistor 4.7K?: R45, R46, R47Â
Resistor 100K?: R49Â
Resistor 100M?: R48Â
Diode 1N4148: D4, D6, D7, D8Â
Crystal 32768Hz: Y1Â
Porcelain capacitors 22pF: C4, C5Â
Ceramic capacitor 0.01uf: C1, C2, C3Â
Light-emitting diode LED: D1, D2, D3, D4Â
16-pin IC socket: U1, U2, U3, U4, U5, U6, U8, U9, U10, U11Â
14-pin IC socket: U11, U12Â
Toggle Switch SS12D00: S3Â
Tact Switch 6x6x5mm: S1, S2Â
Capacitor 100uf: C6Â
0.56-inch 1-bit total negative red digital tube: DS1, DS2, DS3, DS4, DS5, DS6Â
PCB terminal KF301: P1Â
Integrated circuit CD4511 (decoding driver): U1, U2, U3, U4, U5, U6Â
Integrated circuit CD4518 (counter): U8, U9, U10Â
Integrated circuit CD4081 (4-2 input AND gate): U7Â
Integrated Circuit CD4060 (Oscillator Divider): U11Â
Integrated circuit CD4013 (D trigger): U12Â
PCB: 130x70mm double-sidedÂ
FeaturesÂ
1.package include Component list?Please weld in the order of the component list.Â
2.Resistor, crystal, ceramic capacitor, toggle switch, regardless of positive and negativeÂ
3.Diode, capacitor, long pin is positive, corresponding to the position of the board +Â
4.1N4148 black circle corresponding board white mark positionÂ
5.Integrated circuit and IC notch position corresponds to the position of the board notchÂ
6.The position where the tact switch can be normally loaded is correct.
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