25 in 1 Electronic Project On Breadboard: Flasher, alarm, detector, ultrasonic, timer, amplifier, no soldering & easy to build by M Nazri

Author:M Nazri [Nazri, M]
Language: eng
Format: mobi
Publisher: Smartbiz Empire
Published: 2018-06-24T16:00:00+00:00

Circuit diagram of Automatic Dark detector.

PARTS LIST

R1 = 100kΩ

R2 = 330Ω

LDR1

LED1

TR1 = BC547

S1 = on/off

B1 = 6 volt

COMPONENTS

= 2

PROJECT 84:

WATER DETECTOR ALARM

Circuit diagram of Water Detector Alarm.

PARTS LIST

R1 = 220Ω

VR1 = 100kΩ

TR1 = 2N2222

TR2 = 2N3904

IC1 = UM66T

BZ1 = buzzer

S1 = on/off

B1 = 6 volt

Jumper wire as probe

COMPONENTS

= 6

PROJECT 85:

WATER DETECTOR ALARM – 6V

Circuit diagram of Water Detector Alarm – 6V.

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