Here, we are using a 4 relay module because we will only control four appliances. If you want to automate a different number of appliances, you can use a different relay module. There are many relay ...

In this quick Arduino tutorial I will explain how you can control a relay using the Arduino Board, one 1K and one 10K resistors, 1 BC547 transistor, one 6V or 12V relay, one 1N4007 diode and a 12V fan ...

You can control the brightness of these LEDs using variable resistors VR1, VR2 and VR3 respectively. Parts Needed. Arduino UNO board – 1 ; 5mm LEDs Red, Green, Blue – each 1 ; 100K Variable resistor – ...

Intensity of light (on LDR) ↓ - Resistance↑ - Voltage at analog pin↓ - Duty cycle (PWM)↑ -Brightness of Power LED ↑. If its full bright outside (when analog value increases more than 500) the power ...

In this project we control direction and speed of a 24v high current motor using Arduino and two relays.No power switches are needed for this circuit, just two push buttons and in Potentiometer to ...

Arduino IoT Cloud Integration: o Use Arduino IoT Cloud for remote control and monitoring. o Secure communication via a Thing ID and a Device Secret. ESP32: o Acts as the microcontroller and connects ...

[Ben Jones] just started a new site called Maker-Guide, where he makes some very informative and well produced DIY videos on anything from homemade photography hacks, to controlling an outlet using… ...

He ended up using multiple 74138 decoder/multiplexer IC’s to control the LED’s. Since the columns have inverted outputs, he couldn’t just hook them straight up to the LED’s.