Soldered Piano Solder Kit - capacitive touch piano kit

Description

The device Piano Solder Kit by Soldered is a soldering kit for building a functional electronic piano with 12 capacitive touch keys. The design is based on a pre-programmed ATmega328P microcontroller that generates tones corresponding to the touched pads. The kit also provides practical experience with basic soldering, component identification and the operation of simple electronic circuits.

The audio signal is amplified by an LM386 and played through the included 8Ω speaker. A 10kΩ potentiometer provides volume control, while the octave selector allows operation across four octave ranges. An arpeggio mode is also available, in which held notes are played sequentially, with the transition speed adjustable using a separate 100kΩ potentiometer.

The board is powered from 5V through the USB-C connector, while additional +5V pins allow an external power source to be used. The USB-C connector and 16MHz crystal resonator are factory mounted on the PCB. A separate POWER switch allows the completed device to be turned on and off.

The board measures 165 × 98mm, and the component placement and markings on the PCB simplify assembly. Soldered provides a detailed step-by-step assembly guide, making the project suitable as a practical exercise in through-hole soldering.

Features

• Piano functions
  • 12 capacitive touch keys
  • 4 octave ranges
  • Volume control
  • Arpeggio mode
  • Adjustable arpeggio speed
  • ON/OFF power switch
• Electronic components
  • Microcontroller: ATmega328P
  • Factory-programmed microcontroller
  • Microcontroller clock frequency: 16MHz
  • Audio amplifier: LM386
  • Speaker: 8Ω
  • Volume control potentiometer: 10kΩ
  • Arpeggio speed potentiometer: 100kΩ
• Power
  • Supply voltage: 5V
  • Power supply through USB-C
  • Additional +5V pins for external power
  • USB-C connector factory mounted on the PCB
• Assembly
  • Educational soldering kit
  • Through-hole THT component assembly
  • DIP-28 socket for the ATmega328P microcontroller
  • DIP-8 socket for the LM386 amplifier
  • Component markings on the PCB simplify assembly
• Mechanical parameters
  • Board dimensions: 165 × 98mm
• Documentation
  • Full product documentation available
  • Step-by-step assembly guide available
• Additional information
  • Manufacturer: Soldered Electronics
  • Product code: 333181

Kit includes

• 1 × Piano Solder Kit PCB with factory-mounted USB-C connector and 16MHz crystal resonator
• 1 × pre-programmed ATmega328P microcontroller in DIP-28 package
• 1 × DIP-28 socket for ATmega328P
• 1 × LM386 audio amplifier in DIP-8 package
• 1 × DIP-8 socket for LM386
• 1 × 8Ω speaker
• 2 × speaker connection wire
• 1 × 10kΩ potentiometer for volume control
• 1 × 100kΩ potentiometer for arpeggio speed control
• 1 × arpeggio mode switch
• 1 × octave selector switch
• 1 × ON/OFF power switch
• 12 × 1MΩ resistor
• 1 × 100kΩ resistor
• 5 × 10kΩ resistor
• 2 × 5.1kΩ resistor
• 1 × 100Ω resistor
• 1 × 10Ω resistor
• 7 × 100nF ceramic capacitor
• 2 × 100µF electrolytic capacitor
• 1 × 1000µF electrolytic capacitor
• 1 × 680µF electrolytic capacitor
• 2 × 1N4007 diode