Description:
- You can enjoy making music with the DIY electronic piano kit which lets you build a 555 Timer IC powered piano with push buttons. The piano can play different notes using a 16-ohm 0.25W speaker. This project teaches you the physics behind sound. It covers how sound is produced using electronic components, capacitors, resistors and the way frequency is controlled in a circuit.
- 1 x 555 Timer IC - Used as the main part for generating the toneΒ
- 1 x 16-ohm 0.25W Mini Speaker - Used to generate soundΒ Β
- 7 x Push Buttons (Tactile Switch) - To eachΒ piano noteΒ
- 1 x Large Breadboard - For the complete piano circuitΒ
- 1 x 9V Battery - Supply for the pianoΒ
- 1 x 9V Battery Connector - Used for snap on connectors to the batteryΒ
- 7 x 15mm length Hard Jumper Wires - Used from the buttons to the speakersΒ
- 7 x 1KΞ© Resistors - For each key as current limitersΒ
- 1 x 104pF Ceramic Capacitor - For the timing controlΒ
- 1 x 10ΞΌF 63V Electrolytic Capacitor - For the smoothing outputΒ Β
- 1 x 15KΞ© Resistor - Used together with the capacitors to control the frequencyΒ
- 1 x Node Sticker Set - Used for C, D, E, F, G, A, B stickers for labelling the piano keysΒ
- The 555 Timer IC is used in sound frequency generation in the piano. Use of each of the seven buttons applies a 1KΞ© resistor to the circuit, changing the tone frequency. When voltage is supplied to the circuit using the button, the voltage sound corresponding to the tone is amplified by the speaker.
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