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Red Countdown Timer 60s Rotary Electronic Clock DIY Kit 60s Rotate Seconds Count Smart Timing Alarm Electronics Circuit Teaching DIY Kits

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$6.49 $3.25
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Price$4.20$3.99$3.50
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Description:
60 second countdown timer. Realize a fixed time countdown. After the time is end, start the alarm and generate 3-4 alarms.It can be used for prompters, match reminders,timeout reminder.

Features:
1>.Fixed 60 seconds countdown without resetting.
2>.Low power consumption.
3>.RED LED indicator.
4>.Automatic alarm.

Parameters:
1>.Name:60 seconds electronic countdown timer
2>.Model:ETI-60
3>.Stand by current:=<8mA
4>.Working voltage:DC5V
5>.Working current:=<10mA
6>.Countdown time:60 seconds
7>.Countdown to end prompt:Three times alarm song
8>.Soldering difficulty:General
9>.PCB size:84mm*84mm

Component Listing:

NO. Component Name PCB Marker Parameter QTY
1 Metal Film Resistor R4 470R 1
2 Metal Film Resistor R3 1K 1
3 Metal Film Resistor R1 6.8K 1
4 Metal Film Resistor R6,R7,R9-R11 10K 5
5 Metal Film Resistor R5,R8 22K 2
6 Metal Film Resistor R2 68K 1
7 Ceramic Capacitor C2,C5 104P 2
8 Electrolytic Capacitor C1,C3 10uF 2
9 Electrolytic Capacitor C4 220uF 1
10 LED D1-D61 Red 3mm 61
11 CD4069 U4 DIP-14 1
12 CD4017 U2,U3 DIP-16 2
13 NE555 U5 DIP-8 1
14 S8050 Q1-Q4 TO-92 4
15 Diode D62 1N4148 1
16 Button switch S2,S3 6*6*9mm 2
17 Self-locking Switch S1,S4 6*6mm 2
18 Buzzer SPK1 5V 9*12mm 1
19 Power Supply Socket CN1 DC3.5mm 1
20 PCB —— 84*84*1.2mm 1
21 USB Power Cable —— 100cm 1

Schematic Diagram:

 


 

Note:
1>. Please make sure all components in right dirction and right place.
2>. Please check whether pseudo welding.
3>. The soldering iron cannot contact the components for a long time, otherwise it is easy to damage the components due to high temperature.

Using Step:
1>. Press ‘START’ key to began countdown.
2>. Press ‘PAUSE’ key to pause countdown and LED D61 will flashes.Press again and continue counting down.
3>. Press ‘STOP’ key to pause countdown and reset.
4>. Countdown ends, buzzer alarm.

 
Download the Installation Manual Here:
 


Finished Product Picture:

 

I. Tested by ICStation's Outstanding Partner bzoli5706:
(GIF Picture as followings:)


 

Learn More Details in the Video:
(The language in the video is English)

 

II. Tested by ICStation's Outstanding Partner Workshop MasterOK electronics Repair:

Learn More Details in the Video:
(The language in the video is Russian)

Quantity3+5+10+
Price$4.20$3.99$3.50
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Red Countdown Timer 60s Rotary Electronic Clock DIY Kit 60s Rotate Seconds Count Smart Timing Alarm Electronics Circuit Teaching DIY Kits
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