Többfunkciós egyszerű elektronikus jelszó zár áramkör tanulás DIY készlet

Multi-Functional Simple Electronic Password Lock Circuit Learning DIY Kits
Product Introduction:1.Operating Principle:press S1,U1A Q=1;press S4,U1B Q=1;press S7,U2A Q=1;press S9,U2B Q=1;when open the lock,indicator lamp LED1 will be on;and it shows input password is correct.At the same time,U2B Q=0,U3 Y=1,making the first three triggers all clear;if you want to clear U2B,indicator lamp LED1 off,you can press S8.2.According to above analysis,the password is 1479 in turn.during the process of inputing password,if you don't press the key in the proper order or press other trigger clear port (R port) key,then the password is false.

Packing List:
Name ParameterQuantity
ICCD40132
ICCD40111
SMD Resistor 10K ohm6
Resistor 10K ohm1
Resistor 510 ohm1
Electrolytic Capacitor 10uF1
LED5mm Red1
Tact Switch6*6mm10
PCB 1
401351532022 - ali110 (280)