Канал: Mohan Doss

voice controlled led on/off

voice controlled led on/off

Automatic hand sanitizer

Automatic hand sanitizer

Battery charge level indicator | 12 V battery |

Battery charge level indicator | 12 V battery |

Solar mobile charger

Solar mobile charger

Smoke / gas detector circuit using MQ2 Gas Sensor

Smoke / gas detector circuit using MQ2 Gas Sensor

Automatic hand sanitizer dispenser using IR sensor

Automatic hand sanitizer dispenser using IR sensor

Simple metal detector circuit

Simple metal detector circuit

simple short circuit protection | using 12V relay |

simple short circuit protection | using 12V relay |

simple delay timer circuit | 60 second delay |

simple delay timer circuit | 60 second delay |

Switch board connection | LED bulb, Tube light and plug point socket with switch control |

Switch board connection | LED bulb, Tube light and plug point socket with switch control |

Two lamps in series and parallel connection

Two lamps in series and parallel connection

arduino based BLDC motor speed control

arduino based BLDC motor speed control

Casio calculator button and display checking

Casio calculator button and display checking

Heart blinking LED

Heart blinking LED

Bluetooth based home automation |hc-05 module | android phone |

Bluetooth based home automation |hc-05 module | android phone |

2 Simple Ideas | Continuity tester | RGB led |

2 Simple Ideas | Continuity tester | RGB led |

Happy new year message via lcd display

Happy new year message via lcd display

If 3 phase wiring neutral are disconnected which lamp will glow brighter ? | explained in tamil |

If 3 phase wiring neutral are disconnected which lamp will glow brighter ? | explained in tamil |

single phase preventer | what is single phasing ? | experiment explained in tamil |

single phase preventer | what is single phasing ? | experiment explained in tamil |

automatic rotor resistance starter | 3 stage resistance | explained in tamil |

automatic rotor resistance starter | 3 stage resistance | explained in tamil |

which lamp will glow brighter in series connection ? 100w or 200w | explained in tamil |

which lamp will glow brighter in series connection ? 100w or 200w | explained in tamil |

forward and reverse operation of cage induction motor | practical explained in tamil |

forward and reverse operation of cage induction motor | practical explained in tamil |

Two speed two winding motor control | practical class explained in tamil |

Two speed two winding motor control | practical class explained in tamil |

engineering graphics - I | introduction part - 1 |

engineering graphics - I | introduction part - 1 |

Dynamic braking of cage motor | control circuit and practical lesson explained in tamil |

Dynamic braking of cage motor | control circuit and practical lesson explained in tamil |

Star-delta starter | fully automatic

Star-delta starter | fully automatic

star-delta starter | Semi-automatic

star-delta starter | Semi-automatic

Jogging control of cage induction motor | experiment explain in tamil |

Jogging control of cage induction motor | experiment explain in tamil |

Clap switch | 555 timer IC + transistor + condenser mic |

Clap switch | 555 timer IC + transistor + condenser mic |

DOL starter connection and control circuit operation

DOL starter connection and control circuit operation

How to pair tv remote with set-top box remote | explained in tamil |

How to pair tv remote with set-top box remote | explained in tamil |

DIY Wireless speaker | IR transmitter_Photo diode receiver |

DIY Wireless speaker | IR transmitter_Photo diode receiver |

Wireless power transmission | simple circuit | less component |

Wireless power transmission | simple circuit | less component |

Stepper motor interface with arduino | 360° revolution clockwise and anticlockwise |

Stepper motor interface with arduino | 360° revolution clockwise and anticlockwise |

Obstacle avoiding robot | making video |

Obstacle avoiding robot | making video |

Led chaser using arduino

Led chaser using arduino

Line following robot | making explained in tamil |

Line following robot | making explained in tamil |

Arduino for beginners | led blinking | how to program | explained in tamil |

Arduino for beginners | led blinking | how to program | explained in tamil |

Tv, computer external speaker | at low cost |

Tv, computer external speaker | at low cost |

Home Automation | remote மூலம் light/fan on/off |

Home Automation | remote மூலம் light/fan on/off |

fm radio with usb drive | low cost | explained in tamil

fm radio with usb drive | low cost | explained in tamil

automatic night lamp | dark detection sensor | using ldr

automatic night lamp | dark detection sensor | using ldr

fm radio with Bluetooth speaker | old to new |

fm radio with Bluetooth speaker | old to new |

staircase wiring connection for single floor house

staircase wiring connection for single floor house

555 timer IC based led flasher with beep sound effect

555 timer IC based led flasher with beep sound effect

Individual lamp control connection (explained in tamil)

Individual lamp control connection (explained in tamil)

Wireless Bluetooth headset / loud speaker at low cost

Wireless Bluetooth headset / loud speaker at low cost

Tranformerless 230V AC to 12V DC power supply

Tranformerless 230V AC to 12V DC power supply

simple mini inverter 12V to 230V

simple mini inverter 12V to 230V

Musical dancing LED's

Musical dancing LED's

Diode IN4007 act as a heat sensor

Diode IN4007 act as a heat sensor

Does neutral wire give electric shock or not? Practical explanation in tamil

Does neutral wire give electric shock or not? Practical explanation in tamil

obstacle detector circuit using IR led

obstacle detector circuit using IR led

230V AC lamp flasher using TRIAC

230V AC lamp flasher using TRIAC

How to make extension switch box (explained in tamil)

How to make extension switch box (explained in tamil)

Fire alarm circuit using photo diode (flame sensor)

Fire alarm circuit using photo diode (flame sensor)

RGB led lighting with siren sound effect

RGB led lighting with siren sound effect

Relay based RGB lighting effect

Relay based RGB lighting effect

Party lighting effect for home

Party lighting effect for home

DC motor forward/reverse operation using relay

DC motor forward/reverse operation using relay

Room temperature indicator using relay and LM35 sensor.

Room temperature indicator using relay and LM35 sensor.

Relay based automatic 10 watts emergency lamp

Relay based automatic 10 watts emergency lamp

Live wire without contact tester

Live wire without contact tester

how to make photo frame blinking led

how to make photo frame blinking led

Low cost DISCO light effect at home using transistors

Low cost DISCO light effect at home using transistors

DIY Water tank over flow indication with alarm

DIY Water tank over flow indication with alarm

Rain drop detector with alarm

Rain drop detector with alarm

Automatic fire alarm circuit using LM35 sensor

Automatic fire alarm circuit using LM35 sensor

Automatic traffic light control system using BC547 transistors

Automatic traffic light control system using BC547 transistors

LED Blinking circuit using Astable Multivibrator

LED Blinking circuit using Astable Multivibrator

Automatic temperature based fan speed controller using LM35 sensor

Automatic temperature based fan speed controller using LM35 sensor

Automatic 10 Watts emergency lamp

Automatic 10 Watts emergency lamp

LED blinking circuit using single BC547 transistor

LED blinking circuit using single BC547 transistor

Battery charge level indicator

Battery charge level indicator

Universal remote tester circuit using TSOP 1738

Universal remote tester circuit using TSOP 1738

security alarm at low cost | burglar alarm |

security alarm at low cost | burglar alarm |

How to make loud speaker for mobile phone

How to make loud speaker for mobile phone

How to make a simple touch sensor

How to make a simple touch sensor

Solar based mobile charging

Solar based mobile charging

DC regulated power supply 12V, 5V | bridge rectifier | | ac to dc |

DC regulated power supply 12V, 5V | bridge rectifier | | ac to dc |