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Newly Updated Circuit Projects:

OBD2 Connector Pinout, Datasheet

Last Updated on January 2, 2024 by Swagatam 13 Comments

OBD M DB9 F ES Internal connection compressed

The DB9 to OBD-II adapter cable is an easy to use adapter that enables the EasySYNC range of CANbus products to fit compatibly with OBD-II interface connectors, typically utilized in automotive diagnostics. The DB9 pinouts directly fit into the EasySYNC CANPlus modules or any CANbus adapter which complies with the CAN-in-Automation (CiA) DS102-2 pin-out. The […]

Filed Under: Datasheets and Components Tagged With: Connector, Datasheet, OBD2, Pinout

Loudspeaker Thump Sound Eliminator Circuit

Last Updated on January 2, 2024 by Swagatam 8 Comments

speaker thump sound eliminator compressed

While using amplifiers, we sometimes experience this very annoying thump sound, popping up in loudspeakers whenever the amplifier is switched ON or OFF. This normally happens with amplifiers that are of low quality or lack the feature of a thump eliminator circuit built-in in the amplifier. The thump sound in loudspeakers can be not only […]

Filed Under: Audio and Amplifier Projects Tagged With: Eliminator, Loudspeaker, Sound, Thump

Higher Variable Output Voltage from IC 7812

Last Updated on January 2, 2024 by Swagatam 15 Comments

variable output from IC 7812 compressed

You may have often wondered whether it was feasible to get higher voltages than 12 V from a 7812 IC? In this short post I have explained how to configure the IC 7812 with a BJT stage, so that its output can be made variable for achieving any desired voltage higher than 12 V, without […]

Filed Under: Power Supply Circuits Tagged With: 7812, Higher, Output, Variable, Voltage

Automatic Bedroom Lamp Timer Circuit

Last Updated on January 2, 2024 by Swagatam 18 Comments

BEDROOMNIGHTLAMPCIRCUIT

A simple automatic bedroom lamp timer circuit has been described here to switch off your bedroom lamp after a fixed predetermined time. The use of the reliable 741 IC makes the circuit very easy to build and moreover very accurate. Introduction The circuit of an automatic bedroom lamp timer presented here is super easy to […]

Filed Under: Timer and Delay Relay Tagged With: Automatic, Bedroom, Lamp, Timer

Simple Car Burglar Alarm Circuit

Last Updated on January 2, 2024 by Swagatam 6 Comments

Learn how to build a simple car burglar alarm circuit right in your home. The circuit is built around a few trivial components and yet proves to be totally fool proof with the security of car accessory to which it has been integrated. You certainly won’t like waking up just to see your car audio […]

Filed Under: Automobile Electronics, Security and Alarm Tagged With: Alarm, Burglar, Simple

Build Simple Transistor Circuits

Last Updated on January 2, 2024 by Swagatam 73 Comments

variable power supply transistor

A compilation of important assorted transistor simple circuits to build has been included here. Simple Transistor Circuits for New Hobbyists Many simple transistor configurations like, rain alarm, delay timer, set reset latch, crystal tester, light sensitive switch and many more have been discussed in this article. In this compilation of simple transistor circuits (schematics) you […]

Filed Under: Mini Projects Tagged With: Build, Circuits, Simple, Transistor

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