The point was to learn how to take the most basic circuit connected to an active or passive buzzer and generate musical notes by toggling the circuit HIGH/LOW, and then see how effectively chords ...

Circuit Diagram To better understand the workings of this project, check out our detailed diagram that illustrates the circuitry and connections involved in bringing Tetris to your Arduino setup. This ...

By observing the graph, users can visualize the intensity and direction of the detected vibrations. Steps to Use Setup Arduino Code. Connect the Arduino Uno board to the ADXL335 accelerometer, LCD ...

Circuit and Working. Fig. 2 shows the circuit diagram of the automatic school bell. It is built around Arduino Uno R3, 16×2 LCD display with I2C (MOD1), DS3231 RTC, 4×4 matrix keypad, 5V SPDT relay, ...

The circuit diagram of the Arduino-based night security light is shown in Fig. 2. It is built around an Arduino Uno board (board1), PIR sensor connected across CON2, two BC547 npn transistors (T1, T2) ...