Many electronic enthusiasts are very interested in DIY, but if they can capture the hearts of others, it would be awkward... There are still 3 days from February 14 except that the drone can confess and do it yourself. A "love" LED water light is also full of heart.
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DIY cool "heart" type LED lights
1) "Heart" schematic
Figure 1 "Heart" 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.
Figure 2 "Heart" type LED welding layout
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.
Figure 3 "Heart" type LED welding front layout
Figure 4 "Heart" type LED soldering 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.
Figure 5 "Heart" type LED soldering back finish
Description: The LED lamp negative electrode is connected to the MCU port by the solder wire. It is recommended that the first welder use the wire connection, because for the first welder, the solder wire is very badly connected, and beautiful!
Note when soldering: After soldering the resistor, be sure to solder the negative pole to connect the MCU port after the board is finished. After all, we must pursue the perfect "heart"! Besides, the soldering is good, the front is "heart" type, and the back is also The perfect "heart" type can be considered true, it is romantic!
Figure 6 "Heart" type LED welding front finish
Note: The power supply is provided by four 5th batteries. When soldering, do not solder the reverse polarity, or the MCU chip will be burned!
Next: "Heart" LED water light program and renderings
After welding, it is time to witness the miracle. After the program is finished, as shown in Figures 7, 8, 9
"Heart" type LED light program, please click here to download
Figure 7 "Heart" LED light effect diagram
Figure 8 "Heart" LED light effect diagram
Figure 9 "Heart" type LED light effect diagram
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