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33 articles matching “circuit”

Android- Arduino BTCOMM Shield Circuit Layout Using Fritzing
Practical electronics projects and step-by-step guidance for makers.
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Latch-up circuit using 555 and opto-coupler
Practical electronics projects and step-by-step guidance for makers.
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Amarino based Sensor Graph with Custom Bluetooth ID and LED controller
In this project, you can control an LED and see sensor graph simultaneously. For your convenience, I have used a simple light sensor circuit. The...
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Video- 4 in 1 DIY kit- Latch circuit
Practical electronics projects and step-by-step guidance for makers.
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Flasher circuit using NE555 timer- Basic electronic project
This flasher circuit is bit different from other flasher circuits published on buildcircuit.com.
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Test UM3481 musical circuit
Practical electronics projects and step-by-step guidance for makers.
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Up Counter
An up counter simply counts from 0 to 9. We can use this circuit to make digital object counter. This circuit can also be used to make a digital clock.
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Digital Object Counter using LDR and digital IC
555 timer configured in monostable mode is a simple automatic dark sensor circuit that gives output when light falling on LDR is blocked.
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Telephone misuse indicator
When the phone line is in idle condition (on hook), the full voltage of 48V DC from the exchange appears across the line. When the phone is...
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Basic RC circuit
For the circuit to work as light operated musical bell, we need to connect the SW1- switch to N/C terminal of relay. LDR has to be kept in a dark case.
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Mode of NE555- Astable
This circuit has been configured in Astable mode. The output pulses are determined by the values of resistors R1, R2 and the timing capacitor C1....
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Water Level Indicator
We can use the logic of making an automatic light detector to make a simple water level indicator.We just need to remove LDR from the circuit and...
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