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WatchdogTutorials

Explore various electronic hardware project tutorials here.Click on Open Project/Tutorial to read and watch videos for various tutorials. At bottom of each project, you may wish to print/make PDF of the tutorial or go back to home page. To see and download enlarged images, right click on the image and click on Open Image in New Tab


Skip to Content: Non MCU Circuits Arduino MCU Circuits

Non Microcontroller Circuits
John

Square Wave Generator

555 Timer

John

DIY Continuity Tester

OPAMP

John

IR TSOP Relay Board

TSOP1738,CD4017

John

OPAMP & 555 Tester

741,555


John

LDR Based Light Sensor

OPAMP,LDR

John

MQ2 Gas Sensor

OPAMP,MQ-2

John

DIY Relay Board

Relay,Optocoupler

John

Turntable & PCB Etching Shaker Circuit

NE556, L293D


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Sallen Key Low Pass Filter

LM358

John

Multiple feeback bandpass filter

LM358/4558/NE5532

John

Twin T Notch Filter

Using R C

John

LA4440 Stereo Amplifier(6W+6W)

LA4440


John

LM386 1W Amplifier

LM386

John

LM380 2.5W Amplifier

LM380

John

LA4225 5W Amplifier

LA4225

John

TDA2030 10W Amplifier

TDA2030


John

Binary to Decimal LearnerKit

CD4511



Arduino Based Projects
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Analogue Temperature Meter

Arduino,Servo,LM35

John

Control Appliance using WiFi

NodeMCU, Relay

John

Blind Glasses

Arduino, HCSR04

John

GSM Weather Notifier

Arduino, SIM900, DHT22


John

Temperature & Humidity Monitor

Arduino,LCD,Bluetooth

John

P10 DMD Display

Arduino, P10

John

MAX7219 4 Digit Display

Arduino,MAX7219,7segment

John

Shift Register 4 Digit Display

74595, Microcontroller


John

TFT Display for Arduino

Arduino, TFT Display

John

DIY Glass Lights

Arduino, LED

John

IIR Low Pass Digital Filter

ESP32

John

Moving Average FIR Filter

ESP32





Microcontroller Tutorials using C
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8051 Tutorials

AT89S52

John

PIC12F675 Tutorials

PIC12F675, Pickit3

John

PIC16F877 Tutorials

PIC16F877, Pickit3

John

ATTINY13 Tutorials

ATTINY13/13A


John

ATMEGA32 Tutorials

ATMEGA32/32A, USBASP



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