This circuit enables the generation of audio musical notes that can be heard from a distance of up to 10 meters. It consists of two main components: an infrared (IR) music transmitter and an IR music receiver. The IR music transmitter operates on a 9V battery, while the IR music receiver functions with a regulated power supply ranging from 9V to 12V. The first diagram illustrates the circuit design of the IR music transmitter, which employs the widely used melody generator IC UM66 (IC1) to continuously produce musical tones.
The IR music transmitter circuit is designed to generate audio signals that can be transmitted wirelessly through infrared light. The key component, the UM66 melody generator IC, is capable of producing a variety of musical notes and melodies. It is configured to operate with a 9V battery, providing the necessary power to drive the circuit. The output from the UM66 is typically connected to an IR LED, which converts the electrical signals into infrared light. This light can be modulated to represent the audio signals, allowing for wireless transmission of sound.
The IR music receiver is designed to capture the infrared signals emitted by the transmitter. It typically includes a photodiode or phototransistor that detects the IR light and converts it back into an electrical signal. This signal is then amplified and processed to reproduce the original audio tones generated by the transmitter. The receiver circuit is powered by a regulated supply, ensuring stable operation and preventing fluctuations that could affect audio quality.
Overall, the combination of the IR music transmitter and receiver allows for a simple yet effective method of transmitting audio wirelessly. The use of the UM66 IC in the transmitter simplifies the generation of musical notes, making this circuit an excellent choice for various applications, including remote-controlled musical devices and educational projects in electronics.Using this circuit, audio musical notes can be generated and heard up to a distance of 10 metres. The circuit can be divided into two parts: IR music transmitter and receiver. The IR music transmitter works off a 9V battery, while the IR music receiver works off regulated 9V to 12V. First diagram shows the circuit of the IR music transmitter. It uses popular melody generator IC UM66 (IC1) that can continuously generate musical tones.. 🔗 External reference
The sound is captured from a musical instrument in two different ways: through a microphone connected to the instrument's amplifier or via a direct connection to the mixing console using a direct-box device. The advantage of using a direct-box...
The RF oscillator using the inverter N2 and 10.7MHz ceramic filter is driving the parallel combination of N4 to N6 through N3. Since these inverters are in parallel, the output impedance will be low so that it can directly...
The wireless transmitter circuit utilizes transistor T1 (BF494) as a low-power variable-frequency VHF oscillator. A varicap diode circuit is incorporated to modify the frequency of the FM transmitter and to facilitate frequency modulation using audio signals. The output power...
This is a high-fidelity stereo PLL FM transmitter designed for various audio sources including computers, sound cards, game consoles, CDs, DVDs, MP3 players, and stereo mixers. The board features two microphone amplifiers, enabling high-fidelity FM stereo radio transmission when...
Circuit diagram of a modulator circuit in a transmitter and receiver of amplitude modulation.
The modulator circuit in an amplitude modulation (AM) transmitter and receiver plays a crucial role in the process of encoding information onto a carrier wave. In...
The circuit of an AM transmitter is designed to transmit amplitude modulated (AM) double sideband (DSB) signals. A modulated AM signal consists of a carrier and two symmetrically spaced sidebands. The two sidebands have the same amplitude and carry...
We use cookies to enhance your experience, analyze traffic, and serve personalized ads.
By clicking "Accept", you agree to our use of cookies.
Learn more