Electronics Projects in Chandigarh

Electronics Projects in Chandigarh
We discuss about electronic circuits schematics, printed circuit board diagrams and electronics projects diagrams. Discover electronic circuit designs, basic electronics ideas, circuit wiring, kits and new ways to practice your hobby. A huge collection of electronic schematics: audio amplifiers, radio and IR transmitters, antennas, diy kits and more.
BC546, BC547, BC548, BC549, BC550 Datasheet
BC546, BC547, BC548, BC549, BC550 are NPN switching and amplifier transistors with low noise and working at high voltage. Pinout configuration BC546/547/548/549/550.
1W Stereo Amplifier with voltage regulators
A simple stereo audio amplifier is built around two 7905 negative-voltage regulators (IC1 and IC2) and a few discrete components. The circuit will also work with other 79XX regulators if appropriate power supply is used. Regulator IC 7905 works as an amplifier for the voltages applied to common pin2 (Ground or GND).
Sound Level Meter Circuit
This sound level meter circuit can be used to control the intensity of a sound recording or in a disco. It has 5 measurement domains between 70 and 120 dB; reading accuracy is 0.5 dB. Microphone M1 is used to receive the acoustic signal and is coupled to C1, C2, R1 and R2.
LM317 audio amplifier
You probably know that LM317 IC is used as an adjustable voltage regulator, but did you know it can be used as an audio amplifier? This is a class A audio amplifier built with LM317 that delivers a maximum 1W audio power. Use a good heatsink for the LM317 IC and adjust the 5K variable resistor so that you have 4.5V on 10??
SEN-1327 LPG Gas Sensor Module
The SEN-1327 LPG Gas Sensor Module is designed to enable LPG detection interface to Microcontroller without ADC Channels. It allows to determine when a preset LPG gas level has been reached or exceeded. Interfacing with the sensor module is done through a 4-pin SIP header and requires One I/O pin from the host
Telephone ringtone generator circuit
This is a simple home telephone ringtone generator circuit which is built with applying only several electronic components / parts. It generates simulated telephone ringtone and requires only DC supply with 4.5V DC to 12V DC voltage. One may possibly use this circuit in ordinary intercom or phone-type intercom.
Micro-GT servo motor driver
Hi guys, this is a project from Italy, sent by Marco Gottardo. It is about the Micro-GT servo motor driver (or controller) and it is described as the best robotics power and economic solution, perfect like 14 servomotor driver. Now lets go through this project.
In the picture are connected only 8 of the 14 possible servo motors. Centre line in the 3 position strip is the Vcc motor surge, so if the inversion happens no damage will result for both board or servo motor. There is a kind of hardware inversion protection.
The crystal can be mounted in a base to ensure the exchangeable for a model with other frequency, in the same way the two resonator capacitors.
crystal 4Mhz -> capacitor 22pFcrystal 20Mhz -> capacitor 18pF
The circuit diagram is very basic and essential, there aren’t mysterious things, or much special except maybe only the solution resistance and double-1N4148 diode to pin MCLR.
There are 2 ways to flash a PIC:
by serial cable used preloaded bootloader.

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