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Главная> Блог> Small heart-shaped water light circuit diagram Daquan (89c52/CD4017 heart-shaped water light circuit diagram)

Small heart-shaped water light circuit diagram Daquan (89c52/CD4017 heart-shaped water light circuit diagram)

March 31, 2023
Small heart-shaped water light circuit diagram (1)

Using the 89C52, the schematic is as follows:

Small heart-shaped water light circuit diagram Daquan (89c52/CD4017 heart-shaped water light circuit diagram)

There are a total of 32 LED lights, and all 4 I/Os are used. I don't have an LED protection resistor here. I can use a crystal of 12M or 11.0592M for 200, and 30PF for C1 and C2.

The PCB diagram is as follows:

Small heart-shaped water light circuit diagram Daquan (89c52/CD4017 heart-shaped water light circuit diagram)

Small heart-shaped water light circuit diagram (2) DIY cool "heart" type LED light

1) "Heart" schematic

Small heart-shaped water light circuit diagram Daquan (89c52/CD4017 heart-shaped water light circuit diagram)

Figure 1 "Heart" type LED light schematic

Note: The "heart" type LED lights share 32 lights, just 32 ports of P0, P1, P2 and P3 of the MCU.

Note: All the positive poles of the LED lights are connected to the resistance of about 100 ohms respectively, and then connected to VCC, and the negative poles are connected to 32 ports respectively.

Note: Before soldering, first arrange all the LED lights, look at the effect, then solder the minimum system of the MCU first, then solder the LED lights.

Small heart-shaped water light circuit diagram Daquan (89c52/CD4017 heart-shaped water light circuit diagram)

Figure 3 "Heart" type LED welding front layout

Small heart-shaped water light circuit diagram Daquan (89c52/CD4017 heart-shaped water light circuit diagram)

Figure 4 "Heart" type LED welding resistance diagram

Note: I use the in-line resistor to directly solder on the back of the universal board. At the same time, the crystal oscillator and the ceramic circuit are soldered in the single-chip socket. At the same time, the LED lights used by me are red, yellow, blue and green.

"Heart" type LED light effect diagram

Small heart-shaped water light circuit diagram Daquan (89c52/CD4017 heart-shaped water light circuit diagram)

Small heart-shaped water light circuit diagram (3)

Small heart-shaped water light circuit diagram Daquan (89c52/CD4017 heart-shaped water light circuit diagram)

Circuit diagram of CD4017 water light production

Circuit working principle: NE555 constitutes pulse signal generator, pulse signal is output from pin 3 of NE555 to pin 14 of CD4017. The flow rate of the water lamp can be changed by changing the resistance of R2. There are a total of 10 LEDs on the circuit. On the circuit diagram, there is a current limiting resistor for each LED. I only used one resistor during the production and PCB circuit diagram. The effect is the same. The resistance value is 1K. Various water lamp circuits can be fabricated using CD4017, which can be round, heart-shaped, and multiple LEDs combined.

Small heart-shaped water light circuit diagram (4)

Small heart-shaped water light circuit diagram Daquan (89c52/CD4017 heart-shaped water light circuit diagram)

Small heart-shaped water lamp circuit diagram (5)

Small heart-shaped water light circuit diagram Daquan (89c52/CD4017 heart-shaped water light circuit diagram)

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