4 Channel Responder DIY Kit Four Person Responder Electronic Soldering Practice Kits

1.Description:
  This is a 4-way preemptive answering fun welding kit that can simultaneously perform 4-way preemptive answering. S1-S4 is the preemptive answering key, and S0 is the reset key. After any one of the power on selection switches S1-S4 is pressed, the corresponding LED lights up, indicating that the answer is successful. After pressing the switch S0, all indicator lights go out.

2.Parameter:
  1>.Work Voltage:DC 5V
  2>.Work Temperature:-25℃~85℃
  3>.Work Humidity:5%~95%RH
  4>.Size:71x53mm

3.Components List:

4.Circuit Diagram

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