Version 3.2v2 update: modified annotations to make them more intuitive

Version 3.2v1 update: 3D library added

This solution uses NE555 and CD4017 pure hardware running lights without programs

CD4017

CD4017: Decimal counter/pulse distributor, CD4017 is a 5-bit Johnson counter with 10 decoding output terminals, CP, CR, and INH input terminals. The Schmitt trigger at the clock input has pulse shaping capabilities and has no restrictions on the rise and fall times of the input clock pulses. When INH is low, the counter counts on the rising edge of the clock; otherwise, the counting function is invalid. When CR is high, the counter is cleared. Johnson counter that provides fast operation, 2-input decode strobe and glitch-free decode output. Anti-lock gating ensures correct counting sequence. The decoding output is generally low level and remains high level only during the corresponding clock cycle. The CO signal completes a carry every 10 clock input cycles and is used as the lower-level pulsating clock of the multi-level counting chain. CD4017 provides 4 package forms: 16-lead multilayer ceramic dual in-line (D), fused ceramic dual in-line (J), plastic dual in-line (P) and ceramic chip carrier (C). (2) Working conditions editing power supply voltage range: 3V-15V Input voltage range: 0V-VDD Working temperature range M class: 55℃-125℃ Class E: 40℃-85℃ (3) Limit value editing power supply voltage: -0.5 V-18V Input voltage: -0.5V-VDD + 0.5V Input current: ± 10mA Storage temperature: -65℃-150℃ (4) Function symbol editing CO: Carry pulse output CP: Clock input terminal CR: Clear terminal INH: Inhibition terminal VDD: positive power supply VSS: ground Q0-Q9 counting pulse output terminal

NE555

(1) NE555 NE555 is one of the models belonging to the 555 series of timing ICs. The pin functions and applications of the 555 series ICs are compatible, but the models are different because of their different prices, stability, power saving, and availability. The oscillation frequencies generated are also different; and 555 is a very versatile and quite common timing IC. It only requires a few resistors and capacitors to generate pulse signals of various frequencies required by digital circuits (2) Main features 1. Only simple resistors and capacitors are needed to complete a specific oscillation delay function. The delay range is extremely wide, ranging from a few microseconds to several hours. 2. Its operating power supply range is very large and can be matched with TTL, CMOS and other logic circuits, that is, its output level and input trigger level can match the high and low levels of these series of logic circuits. 3. The output current is large and can directly drive a variety of automatically controlled loads. 4. It has high timing accuracy, good temperature stability, and is cheap. (3) Pin 1 (Ground) - Ground (or common ground), usually connected to the common ground of the circuit. Pin 2 (Trigger Point) - This pin is the time period that triggers the NE555 to activate it. The upper edge voltage of the trigger signal must be greater than 2/3 VCC, and the lower edge must be less than 1/3 VCC. Pin 3 (Output) - When the time period begins the 555's output pin moves to a high potential that is 1.7 volts less than the supply voltage. At the end of the cycle, the output returns to a low level of about 0 volts. Pin 4 (Reset) - A low logic level sent to this pin will reset the timer and return the output to a low level. It is usually connected to the positive power supply or left unused. Pin 5 (Control) - This pin allows the trigger and gate voltages to be changed by external voltages. Pin 6 (Reset Lock) - Pin 6 resets the lock and takes the output low. This action is initiated when the voltage at this pin moves from below the VCC voltage to above 2/3 VCC. Pin 7 (Discharge) - This pin has the same current output capability as the main output pin. When the output is ON, it is LOW and has low impedance to ground. When the output is OFF, it is HIGH and has high impedance to ground. Pin 8 (V +) - This is the positive supply voltage terminal for the 555 timer IC.

Production process and effect demonstration

https://www.bilibili.com/video/av93754635/

https://www.bilibili.com/video/av93893629/