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2 Νοε 2013 (πριν από 3 χρόνια και 9 μήνες)

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Vibration

Sensor

Kit 10
7

Page
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3

www.circuitcreations.com

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Vibration

Sensor Kit 10
7

Introduction

Welcome to the exciting world of Circu
it Creations electronics kits.
To assemble this kit you will

need
the following basic items
-

25W to 40W soldering iron, rosin core flux solder, d
iagonal cut
ters to trim
excess lea
d length after soldering, and n
eedle nose pliers

for lead bending
.

The central component of this kit is the
PIC16F1826

microcontroller
.
The extensive capabilities of
this microcontroller have been pre
-
programmed to
provide

a

versatile
vibration

sensor
.

T
his
kit

is a
great building block for projec
ts to
create
a vibration

sensitive switch
, a remote controlled switch,
intruder alarm
, wind detection, motion detection
, a gaming application


Your imagination is the limit
for what can be done with this kit.


V
ibration
Sensor

K
10
7

Features



Switch selectable sensitivity



LED indicator
for

vibration

detection



Switch selectable
momentary or toggle output
mode



Small
,

2.2” x 1.7”
, double

sided Printed Circuit
Board (PCB) with mounting holes



Dedicated
output is activ
ated
when
vibration is
sensed

and remains latched until reset



All microcontroller signals are accessible with
through
-
hole

pads at the edge of the PCB



Add your own circuits with surface mount and
through
-
hole component prototyping section
included on the
PCB



Wide input voltage range (2.7
V to 12V) with
very low stand
-
by power, suitable for battery
operation



Open collector output for connection to higher
power circuits and relays



Circuit Assembly

The
assembly instructions
for the components that are
incl
uded
with

Kit 107

are

as follows:

Designator

Value

Assembly Instructions

U1

PIC16F1826

Notch in package must match notch printed on the PCB, or dot on top
of package must be on the same side as the square pad on the PCB.

U2

MCP1702

Flat side of package a
nd flat side marking on PCB must match.

U3

-----

Not Used.

U4

-----

Not Used.

U5

-----

Not Used.

U6

Vibe Sensor

Polarity does not matter.

Install

this component
las
t and do not bend
.

S1

Dip Switch
-
4

Pin one of the package goes in the square pad with
dot printed next to
it. There will be 2 rows of 4 unused PCB pads for this package.

C1,C2

1uF Capacitor

Polarity does not matter.

R1

68 ohm resistor

Blue
-
Gray
-
Black.

R2

1.2K resistor

Brown
-
Red
-
Red.

R3

-----

Not Used.

R4

-----

Not Used.

R5

330 ohm re
sistor

Orange
-
Orange
-
Brown.

R6

68K resistor

Blue
-
Gray
-
Orange.

LED1

Red

LED

Shorter lead of LED goes in the hole with square pad on the PCB.

Q1

2N3904 Transistor

Flat side of package and flat side marking on PCB must match.

D1

1N4448 Diode

Band on packa
ge must match up with line on the PCB.

D2,D3

SD101C Diode

Band on package must match up with line on the PCB. Supplied in a 2
diode strip.


Not all component

locations
on the
PCB

have components

installed for this kit and are “Not Used”.

See
www.
circuitcreations.com

for general assembly
helpful
hints.



Vibration

Sensor

Kit 10
7

Page
2

of
3

www.circuitcreations.com

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Operation


Do not use

the K10
7

vibration

sensor with any life support system or any other application
where unintended operation might cause harm to people o
r damage property. Always
exercise
caution when connecting the K10
7

circuit to any other circuit.

Connect a DC voltage, such as a power supply, battery, or Circuit Creations Power Supply Kit 101,
between 3 Volts to 12 Volts to the VIN and GND inputs of J1
.

The operating mode
for

the
Vibration

Sensor is determined by switch S
-
1 settings

listed in TABLE 1
.


Mode

S1
-
1

S1
-
2

S1
-
3

S1
-
4

Momentary Active, Reduced Sensitivity

ON

ON

X

X

Toggle Active, Reduced Sensitivity

OFF

ON

X

X

Momentary Active, Maximum Sens
itivity

ON

OFF

X

X

Toggle Active, Maximum Sensitivity

OFF

OFF

X

X

TABLE 1


Switch S1 Settings.
X = Don’t Care

When switch S1
-
1 is ON the outputs are active as long as vibration is detected and remains on for
about 200mS after the vibration sensor no lo
nger detects vibration
.

When S1
-
1 is OFF the outputs
will toggle each time vibration is sensed. For cases where there is too much sensitivity so that the
circuit is activating unintentionally, S1
-
2 can be turned on to reduce the sensitivity.

The characte
ristics of the vibration sensor can be altered by attaching a small mass to the end of the
sensor such as
a small amount of bees wax.

Sensitivity can be increased by adding length to the
vibration sensor such as with a small post
-
it
-
note. In this configu
ration the vibe sensor can detect
very light breezes or wind currents that move the post
-
it
-
note.

There are 3 active outputs for this circuit
.

OUTPUT

PAD

OUTPUT DESCRIPTION

LED

RA2

The LED output illumina
tes the red ACTIVE LED depending on the
operating

mode determined
by switch S1
.

LCH

RA3

The LCH output is initially low when the circuit is

powered up and will be
set
to a high of 2.5V when
vibration

is sensed
.
The LCH output will remain
high until it is reset by either removing power from J1
,

or chang
ing any of
the S1 switch settings.

OC_OUT

OC_OUT

The OC_OUT output is an open collector output that is
normally
open
(i.e.
high impedance) and is active low depending on the operating mode
determined by switch S1.
The OC_OUT output can be used to connect

to
higher power circuits such as a relay.

TABLE 2


Circuit Output Descriptions

The PCB for this kit has been designed to allow for flexibility and experimentation. All of the pins of
the microcontroller are accessible by through
-
hole pads on the edge o
f the PCB allowing integration
into your project. A prototyping area with 40 available through
-
hole pads on 0.1 inch centers and an
array of 119 surface mount pads spaced for common device packages including access to VDD and
GND is provided for your own
circuit design additions.

ENJOY!!



Vibration

Sensor

Kit 10
7

Page
3

of
3

www.circuitcreations.com

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