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Xylophone Project Kit
PIC microcontroller converts the touch into tunes
The xylophone has eight notes, which are sounded by placing a finger onto the PCB, allowing a simple tune to be played. The conversion of key presses into the frequency of the note is done by a PIC micro-controller, pre-programmed with software for this application.
If using this kit in a school, the student can mount the PCB, battery pack and speaker into a box they have designed to make a children's toy.
This kit contains:
1 x PP3 clip lead
1 x 3AA battery holder
1 x LM324 op-amp IC
1 x 14 pin IC holder
1 x PIC 12F675 pre-programmed with xylophone code
1 x 8 pin IC holder
1 x 3.3Kohm resistor
8 x 4.7Mohm resistors
1 x BC337 NPN transistor
1 x 50mm 8ohm speaker
0.5m connecting wire
1 x xylophone PCB
Requires x3 AA batteries
PCB LxW (mm): 93 x 37.5.
PCB Component Count: 13.
Voltage Nominal (V): 4.5.
Voltage Range (V): 3.3V - 5.
Standby Current (mA): 1.6.
Current max at Nominal Voltage (mA): 115