Projects Projects
Logic Probe
Description This circuit is a Logic Probe.
Led display digital Voltmeter
Copyright of this circuit belongs to Smart kit electronics.
Mosfet Tester
This is a variation on the astable multivibrator.
Phone Busy Indicator
Have you ever been using the modem or fax and someone else picks up the phone, breaking the connection?
Phone line indicator
Description With this circuit you can monitor your telephone line.
Electronic Stethoscope
Circuit Description U1a operates as a low-noise microphone preamp.
Plants Watering Watcher
Using a Veroboard mother-board about the same size as the battery holder, a daughter-board was added to hold the remaining parts.
PIR Sensor
This project is an automatic PIR sensor.
Sound Activated Switch – Relay
This project is a sound activated switch.
IR Remote Control Jammer
Introduction This circuit is a simple oscillator.
Programmable Home Security Alarm System
Introduction In this project we design low cost high performance programmable home security system and there is no need to contact a company like Safemart home security for setup.
PIR Motion Sensor
Introduction The objective of this project is to use inexpensive PIR sensor to detect if a human has moved.