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RY169 based flashing festival lights circuit

circuit as shown in the figure of the flashing colored lights. Alternating current through diode VDl~VD4 full wave bridge rectifier, resistor Rl, R2, and Zener diode VD5 regulators, the capacitor C1 filtering, forming smooth DC voltage of 6V, for use by the entire circuit. Diode VD6 role isolation. IC1 Lantern control special IC RY169, inside it has a brightness rating and output speed of the two oscillators, the oscillation frequency by the RPl, RP2, R3, C3 and C2 decisions. When you turn on, ICl 9~12 feet R5~R8 output pulses through the change of resistance, added to the control of thyristor VT1~VT4 pole, their conduction angle changes, which have the effect of blinking stars cycle. ICl 13 feet to string lights lit cycle direction control port, connected when switching Sl the termination, low level, string lights cycle direction for H1 H2 H3 H4 → H1; switch S1 is disconnected, the H4 string lights cycle direction → H3 → H2 → Hl → H4. Adjust potentiometer RPl and RP2 (Note circuit boards with both), make Lantern circulation rate and shining satisfaction, later with RPl and RP2 when you do not have to move.

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RY169 based flashing festival lights circuit