Any Surface Drum Kit

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RASPBERRY PI

ANY SURFACE DRUM KIT

BY: VIVEK PATEL CWID: 10404232 SUBJECT - CPE555

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INTRODUCTION:

# Use of Raspberry Pi

# Sensor

#ADC convertor

#LED

# UBUNTU OS – RASPBIAN

# PYTHON GPIO

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CIRCUIT DIAGRAM

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RASPBERRY PI

Model B+

Memory- SDRAm 512 mb

USB port 2.0 – 2

Video output – hdmi 680x350 t0

1920 x 1200

Network – Ethernet cable

Storage – sd/mmc cards

Power Rating – 750ma = 3.5w

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ANALOG TO DIGITAL CONVERTER

# For microcontrollers without an analog-to-digital converter or when you want a higher-precision ADC, the ADS1015 provides 12-bit precision at 3300 samples/second over I2C. The chip can be configured as 4 single-ended input channels, or two differential channels.

# Includes a programmable gain amplifier, up to x16, to help boost up smaller single/differential signals to the full range.

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# We like this ADC because it can run from 2V to 5V power/logic, can measure a

large range of signals and its super easy to use.

# It is a great general purpose 12 bit converter.

# To get you started, we have example code for both the Raspberry Pi (in our

Adafruit Pi Python library) and Arduino (in our ADS1X15 Arduino library

repository) Simply connect GND to ground, VDD to your logic power supply, and

SCL/SDA to your microcontroller's I2C port and run the example code to start

reading data.

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WIDE SUPPLY RANGE: 2.0V to 5.5V

LOW CURRENT CONSUMPTION: Continuous Mode: Only 150µA Single-Shot

Mode: Auto Shut-Down

PROGRAMMABLE DATA RATE: 128SPS to 3.3kSPS

INTERNAL LOW-DRIFT VOLTAGE REFERENCE

INTERNAL OSCILLATOR

INTERNAL PGA

I2C INTERFACE: Pin-Selectable Addresses

FOUR SINGLE-ENDED OR TWO DIFFERENTIAL INPUTS

PROGRAMMABLE COMPARATOR

This board/chip uses I2C 7-bit addresses between 0x48-0x4B, selectable with jumpers

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PIEZO ELEMENT

# Elements come in handy when you need to detect vibration or a knock. You can

use these for tap or knock sensors pretty easily by reading the voltage on the

output. They can also be used for a very small audio transducer such as a buzzer.

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SOUND CODEimport pygame.mixer

from time import sleep

import RPi.GPIO as GPIO

from sys import exit

GPIO.setmode(GPIO.BCM)

GPIO.setup(11, GPIO.IN)



pygame.mixer.init(48000, -16, 1, 1024)

sndA = pygame.mixer.Sound("buzzer.wav")

sndB = pygame.mixer.Sound("clap.wav")

sndC = pygame.mixer.Sound("laugh.wav")

soundChannelA = pygame.mixer.Channel(1)

soundChannelB = pygame.mixer.Channel(2)

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soundChannelC = pygame.mixer.Channel(3)

print "Soundboard Ready." while True:

try:

if (GPIO.input(11) == True):

soundChannelA.play(sndA)


soundChannelB.play(sndB)


soundChannelC.play(sndC)

sleep(.01)

except KeyboardInterrupt:

exit()

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PROJECT IMAGES:

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THANK YOU

Engineering

Any Surface Drum Kit