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 ...

So here in this project, we are going to make a Simple Automatic Street Light Circuit using LDR and Relay, which will turn on and off the light bulb based on the lights in surroundings. This circuit ...

21 - RF Module interfacing with Arduino Nano with micro switches. 22 - Keypad 4X4 interfacing with Arduino Nano. 23 - Servo Motor Interfacing with Arduino Nano. 24 - relay interfacing with transistor ...

Arduino circuit and code for a simple transistor checker ... timberwoof/miniature-potato. Arduino circuit and code for a simple transistor checker - timberwoof/miniature-potato. Skip to ... do it ...

Fig. 1 shows circuit diagram of the power-saving relay driver where resistor R1 and transistor T1 form a standard relay driver circuit. Fig. 1: Circuit diagram of the power-saving relay driver Once ...

It is built around Arduino Uno R3 (Board1), HC-05 Bluetooth module, three relays (RL1 through RL3) and a few other components. This project demonstrates how to turn on/off the appliances connected ...

The diagram below is the relay driver circuit with Snap Acting for the clean switching of the relay. When the input signal at the base of T1 decreases, it turns off allowing T2 to conduct by giving ...

This prevents A17 Q3 from discharging the +160 volt supply into the A1through A12 Q2 transistors. The coil in the added relay is paralleled with the coil of K4, through a 120 ohm 2 watt resistor as ...