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Mạch cảnh báo mực nước từ xa - How to make Wireless Water Level Indicator with Alarm

How to make Wireless Water Level Indicator with Alarm 



Required Components:-

1) IC HT12E & HT12D 

2) 434MHz Tx & Rx RF Module

3) 1M & 33K ohm Resistor

4) 1K Resistor x 2

5) 680 ohm Resistor x 4

6) BC558 Transistor

7) Green x 2, Red, Blue, Yellow LED

8) Buzzer 5V



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