[0001] The present disclosure relates to the field of mechatronics. In particular, the
present disclosure provides a servo calibration device to measure angles of Radio Control (RC)
servo for different pulse width modulation (PWM) pulses and develop relation between achieved
servo angle from sent PWM pulse.
BACKGROUND
[0002] The background description includes information that may be useful in
understanding the present invention. It is not an admission that any of the information provided
herein is prior art or relevant to the presently claimed invention, or that any publication
specifically or implicitly referenced is prior art.
[0003] There are numerous applications of RC Servos or hobbyists’ servos, from
developing indoor robots, to rapid prototyping, to research-oriented devices. Such servos are
preferred due to their low cost and availability of a wide variety of sizes and torques.
Fundamentally, working of these servos for positioning purposes requires an input of continuous
PWM pulses. Generally, PWM signal having a time period of twenty milliseconds, that is a
frequency of fifty Hertz signal, is inputted with varying pulse widths ranging from one
milliseconds to two milliseconds for different positions (angular positions). Some determined
positions are observed as one milliseconds pulse width for extreme right (say -90degree
considering servos with rotation 0 to ), one and a half milliseconds for neutral position (say 0
degree) and two milliseconds for extreme left (say +90degree).
[0004] However, it has been observed that for the extreme positions (-90 degree and +90
degree), servos of different brands, or even different servos of the same brand, may require pulse
widths which may be slightly more or less than the stipulated one milliseconds or two
milliseconds. Consequently, the need of a servo calibrator is obligatory for angular measurement
for different pulse widths, so as to develop a relation between the different pulse widths and their
respective angular positions.
[0005] There is a need to overcome above mentioned problems by bringing solution, that
can facilitate measuring of angles of Radio Control (RC) servo for different pulse width
3
modulation (PWM) pulses for different size RC servo, and can make process error free and has
high efficiency.
OBJECTS OF THE PRESENT DISCLOSURE
[0006] Some of the objects of the present disclosure, which at least one embodiment
herein satisfies are as listed herein below.
[0007] It is an object of the present disclosure to provide a device, that helps in
calibrating any RC servo using plug-and-play approach for fixing or changing the RC servo.
[0008] It is an object of the present disclosure to provide a device that is ergonomically
designed with holder plate tilted (sloped).
[0009] It is an object of the present disclosure to provide a device that enables user to
easily read out angle attained after successful inputting of PWM signal.
[0010] It is an object of the present disclosure to provide a device with a box-type
housing thereby allowing user to easily store required essentials like micro-controller, microprocessor, pointer arms, adaptor plates for servos.
[0011] It is an object of the present disclosure to provide a device such that the RC servo
does not touch the solid base, and there for there is very little chance of vibrations, resulting in an
error-free, undisturbed, output reading.
[0012] It is an object of the present disclosure to provide a device, that helps in
developing a relation between the different pulse widths and their respective angular positions.
[0013] It is an object of the present disclosure to provide a device, that aids in handling
multiple RC servos in a single setup.
[0014] It is another object of the present disclosure to provide, accurate, fast, efficient,
cost effective and simple servo calibration device for measuring angles of Radio Control (RC)
servo for different pulse width modulation (PWM) pulses and develop relation between achieved
servo angle from sent PWM pulse
[0015] These and other objects of the present invention will become readily apparent
from the following detailed description taken in conjunction with the accompanying drawings.
4
SUMMARY
[0016] The present disclosure relates to the field of mechatronics. In particular, the
present disclosure provides a servo calibration device to measure angles of Radio Control (RC)
servo for different pulse width modulation (PWM) pulses.
[0017] An aspect of the present disclosure pertains to a servo calibration device, said
device may include a first plate with predetermined angular graduations and adapted to
accommodate one or more radio control (RC) servos, and being configured with a pulse width
modulation (PWM) unit, where the PWM unit may be configured to generate a first set of PWM
signals, a set of second plates configured to provide support and positioning of the one or more
RC servos with the first plate, and a pointer movably coupled with one or more RC servos, and
where the pointer facilitates calibration between centre of at least one of the RC servo from one
or more RC servos with predetermined angular graduations.
[0018] In an aspect, the first plate may be adapted in form of circle with predefined
radius, and where the predetermined angular graduations may be positioned on the
circumference of the first plate.
[0019] In an aspect, the predefined radius of the first plate may be based on size of the
one or more RC servos.
[0020] In an aspect, the set of second plates may be coupled behind the first plate.
[0021] In an aspect, the first plate may include a first surface and a second surface, and
where the first surface pertains to the predetermined angular graduations and the second surface
pertains to the set of second plates.
[0022] In an aspect, the first plate may include a cut out section configured to
accommodate the one or more RC servos.
[0023] In an aspect, the pointer’s dimension may include size, length, and width, and
where the dimension may be based on the size of the one or more RC servos.
[0024] In an aspect, the device may be operatively coupled with a processing unit, where
the processing unit may be configured to compute relation between angle and pulse width of the
one or more RC servos, and where the angle may be between the pointer and the graduation
scale.
[0025] In an aspect, the device may include a drawer configured to store the processing
unit, the set of second plates, the pointer for the one or more RC servos.
5
[0026] In an aspect, the device may include a power source configured to supply electric
power, and where the power source may include any or a combination of battery, rechargeable
cell, inverter, generator, and power lines.
BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The accompanying drawings are included to provide a further understanding of
the present disclosure, and are incorporated in and constitute a part of this specification. The
drawings illustrate exemplary embodiments of the present disclosure and, together with the
description, serve to explain the principles of the present disclosure.
[0028] The diagrams are for illustration only, which thus is not a limitation of the present
disclosure, and wherein:
[0029] FIG. 1 illustrates exemplary block diagram of proposed device in accordance with
an embodiment of the present disclosure.
[0030] FIG. 2A, FIG. 2B, and FIG. 2C illustrates axonometric projections of the device
with large, medium, and small size RC servo with their respective adapter plates and pointer
arms in accordance with an embodiment of the present disclosure.
[0031] FIG. 3 illustrates orthographic projections of the device in accordance with an
embodiment of the present disclosure.
DETAILED DESCRIPTION
[0032] In the following description, numerous specific details are set forth in order to
provide a thorough understanding of embodiments of the present invention. It will be apparent to
one skilled in the art that embodiments of the present invention may be practiced without some
of these specific details.
[0033] Embodiments of the present invention may be provided as a computer program
product, which may include a machine-readable storage medium tangibly embodying thereon
instructions, which may be used to program a computer (or other electronic devices) to perform a
process. The machine-readable medium may include, but is not limited to, fixed (hard) drives,
magnetic tape, floppy diskettes, optical disks, compact disc read-only memories (CD-ROMs),
and magneto-optical disks, semiconductor memories, such as ROMs, PROMs, random access
memories (RAMs), programmable read-only memories (PROMs), erasable PROMs (EPROMs),
6
electrically erasable PROMs (EEPROMs), flash memory, magnetic or optical cards, or other
type of media/machine-readable medium suitable for storing electronic instructions (e.g.,
computer programming code, such as software or firmware).
[0034] Various methods described herein may be practiced by combining one or more
machine-readable storage media containing the code according to the present invention with
appropriate standard computer hardware to execute the code contained therein. An apparatus for
practicing various embodiments of the present invention may involve one or more computers (or
one or more processors within a single computer) and storage systems containing or having
network access to computer program(s) coded in accordance with various methods described
herein, and the method steps of the invention could be accomplished by modules, routines,
subroutines, or subparts of a computer program product.
[0035] If the specification states a component or feature “may”, “can”, “could”, or
“might” be included or have a characteristic, that particular component or feature is not required
to be included or have the characteristic.
[0036] As used in the description herein and throughout the claims that follow, the
meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates
otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on”
unless the context clearly dictates otherwise.
[0037] The recitation of ranges of values herein is merely intended to serve as a
shorthand method of referring individually to each separate value falling within the range. Unless
otherwise indicated herein, each individual value is incorporated into the specification as if it
were individually recited herein. All methods described herein can be performed in any suitable
order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of
any and all examples, or exemplary language (e.g. “such as”) provided with respect to certain
embodiments herein is intended merely to better illuminate the invention and does not pose a
limitation on the scope of the invention otherwise claimed. No language in the specification
should be construed as indicating any non-claimed element essential to the practice of the
invention.
[0038] Groupings of alternative elements or embodiments of the invention disclosed
herein are not to be construed as limitations. Each group member can be referred to and claimed
individually or in any combination with other members of the group or other elements found
7
herein. One or more members of a group can be included in, or deleted from, a group for reasons
of convenience and/or patentability. When any such inclusion or deletion occurs, the
specification is herein deemed to contain the group as modified thus fulfilling the written
description of all groups used in the appended claims.
[0039] Exemplary embodiments will now be described more fully hereinafter with
reference to the accompanying drawings, in which exemplary embodiments are shown. This
invention may, however, be embodied in many different forms and should not be construed as
limited to the embodiments set forth herein. These embodiments are provided so that this
disclosure will be thorough and complete and will fully convey the scope of the invention to
those of ordinary skill in the art. Moreover, all statements herein reciting embodiments of the
invention, as well as specific examples thereof, are intended to encompass both structural and
functional equivalents thereof. Additionally, it is intended that such equivalents include both
currently known equivalents as well as equivalents developed in the future (i.e., any elements
developed that perform the same function, regardless of structure).
[0040] While embodiments of the present invention have been illustrated and described,
it will be clear that the invention is not limited to these embodiments only. Numerous
modifications, changes, variations, substitutions, and equivalents will be apparent to those skilled
in the art, without departing from the spirit and scope of the invention, as described in the claim.
[0041] The present disclosure relates to the field of mechatronics. In particular, the
present disclosure provides a servo calibration device to measure angle of pulse width
modulation (PWM) pulse for different size Radio Control (RC) servo.
[0042] According to an aspect the present disclosure pertains to a servo calibration
device, said device can include a first plate with predetermined angular graduations and adapted
to accommodate one or more radio control (RC) servos, and being configured with a pulse width
modulation (PWM) unit, where the PWM unit can be configured to generate a first set of PWM
signals, a set of second plates configured to provide support and positioning of the one or more
RC servos with the first plate, and a pointer movably coupled with one or more RC servos, and
where the pointer facilitates calibration between centre of at least one of the RC servo from one
or more RC servos with predetermined angular graduations.
8
[0043] In an embodiment, the first plate can be adapted in form of circle with predefined
radius, and where the predetermined angular graduations can be positioned on the circumference
of the first plate.
[0044] In an embodiment, the predefined radius of the first plate can be based on size of
the one or more RC servos.
[0045] In an embodiment, the set of second plates can be coupled behind the first plate.
[0046] In an embodiment, the first plate can include a first surface and a second surface,
and where the first surface pertains to the predetermined angular graduations and the second
surface pertains to the set of second plates.
[0047] In an embodiment, the first plate can include a cut out section configured to
accommodate the one or more RC servos.
[0048] In an embodiment, the pointer’s dimension can include size, length, and width,
and where the dimension can be based on the size of the one or more RC servos.
[0049] In an embodiment, the device can be operatively coupled with a processing unit,
where the processing unit can be configured to compute relation between angle and pulse width
of the one or more RC servos, and where the angle can be between the pointer and the graduation
scale.
[0050] In an embodiment, the device can include a drawer configured to store the
processing unit, the set of second plates, the pointer for the one or more RC servos.
[0051] In an embodiment, the device can include a power source configured to supply
electric power, and where the power source can include any or a combination of battery,
rechargeable cell, inverter, generator, and power lines.
[0052] FIG. 1 illustrates exemplary block diagram of proposed device in accordance with
an embodiment of the present disclosure.
[0053] As illustrated in FIG. 1, the proposed device 100 (also referred to as device 100,
herein) can include a first plate 102, a set of second plates 104, and a pointer 106. The set of
second plates 104 can be coupled behind the first plate 102. The pointer 106 can be rotatably
coupled with one or more Radio control (RC) servos. The device100 can facilitate calibration of
one or more radio control (RC) servos (also referred collectively as RC servos and individually
as RC servo, herein). The RC servos can be of different sizes like large, medium, ad small. The
9
device 100 can be configured to accommodate the RC servos of any size and can facilitate
calibration according to the size of the accommodated RC servo.
[0054] In an embodiment, the first plate 102 with predetermined angular graduations and
configured with a pulse width modulation (PWM) unit, where the PWM unit can be configured
to generate a first set of PWM signals. The first plate 102 can be adapted to accommodate the
RC servos of different size. The size can range between large, medium, and small. In an
illustrative embodiment, the first plate 102 can be RC servo holding plate. The RC servo holding
plate can be configured with predetermined angular graduations. The device 100 can facilitate in
calibrating the RC servo such that angle made with the angular graduations of the holding plate
and the pointer 106, can be measured. The device 100 can enable measuring angle of Radio
Control (RC) servo for first set of pulse width modulation (PWM) signals for different sized RC
servos and develop relation between achieved servo angle from sent first set of PWM signals.
[0055] In an illustrative embodiment, the first plate 102 can be adapted in form of circle
with predefined radius, and where the predetermined angular graduation scan be positioned on
the circumference of the first plate. In another illustrative embodiment, the predefined radius of
the first plate 102 can be based on the size of the RC servos. In yet another illustrative
embodiment, the first plate 102 can include a first surface and a second surface, and where the
first surface pertains to the predetermined angular graduations and the second surface pertains to
the set of second plates 104. The first plate 102 can include a cut out section configured to
accommodate the RC servos.
[0056] In an embodiment, the set of second plates 104 can be configured to provide
support and position to the RC servos and the first plate 102. In an illustrative embodiment, the
set of second plate 104 can be configured behind the first plate 102. The set of second plates 104
can be configured to provide the support and position to the first plate 102 and the RC servos
according to the size of the RC servos. In another illustrative embodiment, the set of second
plates 104 can be adaptor plates, where the adaptor plates can be selected according to the size of
the RC servos to be calibrated. In yet another illustrative embodiment, the set of second plates
104 can be configured to receive the first set of PWM signals from the PWM unit.
[0057] In an embodiment, the pointer 106 can be rotatably coupled with the RC servos,
and configured to calibrate centre of the RC servos with the predetermined angular graduations.
In an illustrative embodiment, the pointer 106 can be pointer arms. The pointer arms dimension
10
can include size, length, width, and where the dimensions can be based on the size of the RC
servos. In another illustrative embodiment, the pointer arms can be selected on the basis of the
size of the RC servo to be calibrated.
[0058] FIG. 2A, FIG. 2B, and FIG. 2C illustrates axonometric projections of the device
with large, medium, and small size RC servo with their respective adapter plates and pointer
arms in accordance with an embodiment of the present disclosure.
[0059] In an embodiment, FIG. 2A, FIG. 2B, and FIG. 2C illustrates the axonometric
projections of the device 100 with large, medium, and small size RC servos with their respective
adapter plates 104 and pointer arms 106. The pointer 106 can be pointer arms 106 (also referred
collectively as pointer arms 106 and individually as pointer arm 106, herein). As illustrated in
FIG. 2A, the device 100 can include a first plate, where the first plate can be RC servo holding
plate 102 configured to accommodate the large size RC servo in the device 100. The device 100
can further include a set of second plates 104, where the set of second plates 104 can be adaptor
plates (also referred collectively as adaptor plates 104 and individually as adaptor plate 104,
herein) 104-1 for the large size RC servo with pointer arm 106-1, where the pointer arms 106-1
can facilitate calibration between centre of the large sized RC servo with predetermined angular
graduation according to position of the large size RC servo.
[0060] As illustrated in FIG. 2B, the device 100 can include a first plate, where the first
plate can be RC servo holding plate 102 configured to accommodate the medium size RC servo
in the device 100. The device 100 can further include adaptor plate 104-2 for the medium size
RC servo with pointer arms 106-1, where the pointer arms 106-1 can facilitate calibration
between centre of the medium sized RC servo with predetermined angular graduation according
to position of the medium size RC servo.
[0061] As illustrated in FIG. 2C, the device 100 can include a first plate, where the first
plate can be RC servo holding plate 102 configured to accommodate the small size RC servo in
the device 100. The device 100 can further include adaptor plate 104-2 for the small size RC
servo with pointer arms 106-1, where the pointer arms 106-1 can facilitate calibration between
centre of the small sized RC servo with the predetermined angular graduation according to
position of the small size RC servo.
[0062] In an illustrative embodiment, a dial with angular graduations can be fixed on the
RC servo holding plate 102, which has a cut-out for mounting the RC servo to be calibrated. In
11
another illustrative embodiment, the cut-out can be configured such that the cut out can
accommodate the large sized RC servo. The set of second plates 104 such as adaptor plates 104-
1, 104-2, 104-3 and the pointer 106 like the pointer arms 106-1, 106-2, and 106-3 for the RC
servos of other sizes like medium and small can be designed, taking care that the centre of the
RC servo rotor can be configured to be coincident with the centre of graduated scale mounted on
the holding plate 102. In yet another illustrative embodiment, after fixing the RC servo into the
device 100, user can easily measure angle between the predetermined angular graduations and
the pointer 106, by attaching the pointer arm 106 on the RC servo’s rotor, and can express the
relation between the pulse width modulation (PWM) signal width and the measured angle.
[0063] In an illustrative embodiment, the device 100 can be operatively coupled with the
processing unit, where the processing unit can be configured to compute final expression
expressing relation between the measured angle between the pointer 106 and the predetermined
angular graduations, and the width of the PWM signal for the RC servo. The processing unit can
also facilitate to develop relation between achieved servo angle from sent first set of PWM
signals. The processing unit can include any or a combination of microcontroller,
microprocessor, Arduino, Atmega 328, and the likes
[0064] In an illustrative embodiment, the device 100 can be facilitate calibration of the
centre of the RC with graduated scale or predetermined angular graduations for measuring angle
with help of the adaptor plates 104 and the pointer 106. In another illustrative embodiment, the
user can select the RC servo from the different size of the RC servo like large, medium and small
RC servo to be calibrated. The user can select and fix adaptor plates 104 from the set of adaptor
plates 104-1, 104-2, 104-3 for the RC servo based on the size of the RC servo. The user can fix
the pointer 106 from the pointers 106-1, 106-2, and 106-3 on the RC servo rotor based on the
size of the RC servo.
[0065] FIG. 3 illustrates orthographic projections of the device in accordance with an
embodiment of the present disclosure.
[0066] In an embodiment, FIG. 3 illustrates the orthographic projections of the device
100 along with the axonometric projection (also referred to as rear view of the device 100) of
assembled device 100, orthographic projections of the adaptor plates 104-4 (first angle and
isometric), orthographic projections of the base 302, orthographic projections of the drawer 304,
and the first angle projections of the RC servo holing plate 102. As illustrated in FIG. 3, the
12
device 100 can include the base 302 and the drawer 304. The base 302 can be configured to
provide support for the device 100, and the drawer 304 can be adapted as storage space.
[0067] In an illustrative embodiment, the drawer 304 can be configured to store the
processing unit, the second set of plates 104 like the adaptor plate 104, and the pointer 106. In
another illustrative embodiment, the device 100 can include a power source configured to supply
electric power, and where the power source can include any or a combination of battery,
rechargeable cell, inverter, generator, power lines, and the like.
[0068] Thus, it will be appreciated by those of ordinary skill in the art that the diagrams,
schematics, illustrations, and the like represent conceptual views or processes illustrating
systems and methods embodying this invention. The functions of the various elements shown in
the figures may be provided through the use of dedicated hardware as well as hardware capable
of executing associated software. Similarly, any switches shown in the figures are conceptual
only. Their function may be carried out through the operation of program logic, through
dedicated logic, through the interaction of program control and dedicated logic, or even
manually, the particular technique being selectable by the entity implementing this invention.
Those of ordinary skill in the art further understand that the exemplary hardware, software,
processes, methods, and/or operating systems described herein are for illustrative purposes and,
thus, are not intended to be limited to any particular named.
[0069] While embodiments of the present invention have been illustrated and described,
it will be clear that the invention is not limited to these embodiments only. Numerous
modifications, changes, variations, substitutions, and equivalents will be apparent to those skilled
in the art, without departing from the spirit and scope of the invention, as described in the claim.
[0070] In the foregoing description, numerous details are set forth. It will be apparent,
however, to one of ordinary skill in the art having the benefit of this disclosure, that the present
invention may be practiced without these specific details. In some instances, well-known
structures and devices are shown in block diagram form, rather than in detail, to avoid obscuring
the present invention.
[0071] As used herein, and unless the context dictates otherwise, the term "coupled to" is
intended to include both direct coupling (in which two elements that are coupled to each other
contact each other) and indirect coupling (in which at least one additional element is located
between the two elements). Therefore, the terms "coupled to" and "coupled with" are used
13
synonymously. Within the context of this document terms "coupled to" and "coupled with" are
also used euphemistically to mean “communicatively coupled with” over a network, where two
or more devices are able to exchange data with each other over the network, possibly via one or
more intermediary device.
[0072] It should be apparent to those skilled in the art that many more modifications
besides those already described are possible without departing from the inventive concepts
herein. The inventive subject matter, therefore, is not to be restricted except in the spirit of the
appended claims. Moreover, in interpreting both the specification and the claims, all terms
should be interpreted in the broadest possible manner consistent with the context. In particular,
the terms “comprises” and “comprising” should be interpreted as referring to elements,
components, or steps in a non-exclusive manner, indicating that the referenced elements,
components, or steps may be present, or utilized, or combined with other elements, `
components, or steps that are not expressly referenced.
[0073] While the foregoing describes various embodiments of the invention, other and
further embodiments of the invention may be devised without departing from the basic scope
thereof. The scope of the invention is determined by the claims that follow. The invention is not
limited to the described embodiments, versions or examples, which are included to enable a
person having ordinary skill in the art to make and use the invention when combined with
information and knowledge available to the person having ordinary skill in the art.
ADVANTAGES OF THE PRESENT DISCLOSURE
[0074] The present disclosure provides a device, that helps in calibrating any RC servo
using plug-and-play approach for fixing or changing the RC servo.
[0075] The present disclosure provides a device that is ergonomically designed with
holder plate tilted (sloped).
[0076] The present disclosure provides a device, that enables user to easily read out angle
attained after successful inputting of PWM signal.
[0077] The present disclosure provides a device with a box-type housing thereby
allowing user to easily store required essentials like micro-controller, micro-processor, pointer
arms, adaptor plates for servos.
14
[0078] The present disclosure provides a device, such that the RC servo does not touch
the solid base, and there for there is very little chance of vibrations, resulting in an error-free,
undisturbed, output reading.
[0079] The present disclosure provides a device, that helps in developing a relation
between the different pulse widths and their respective angular positions.
[0080] The present disclosure provides a device, that aids in handling multiple RC servos
in a single setup.
[0081] The present disclosure provides an accurate, fast, efficient, cost effective and
simple servo calibration device for measuring angle for measuring angles of Radio Control (RC)
servo for different pulse width modulation (PWM) pulses and develop relation between achieved
servo angle from sent PWM pulse.

We Claim:

1. A servo calibration device, said device comprising:
A first plate with predetermined angular graduations and adapted to accommodate
one or more radio control (RC) servos, and being configured with a pulse width
modulation (PWM) unit, wherein the PWM unit is configured to generate a first set of
PWM signals;
A set of second plates configured to provide support and positioning of the one or
more RC servos with the first plate, and
A pointer movably coupled with one or more RC servos, and wherein the pointer
facilitates calibration between center of at least one of the RC servo from one or more RC
servos with angular graduations.
2. The device as claimed in claim 1, wherein the first plate is adapted in form of a circlewith
predefined radius, and wherein the predetermined angular graduation sarepositioned on
the circumference of the first plate.
3. The device as claimed in claim 2, wherein the predefined radius of the first plate is based
on size of the one or more RC servos.
4. The device as claimed in claim 1, wherein the set of second plates is coupled behind the
first plate.
5. The device as claimed in claim 1, wherein the first plate comprises of a first surface and a
second surface, and wherein the first surface pertains to the predetermined angular
graduations and the second surface pertains to the set of second plates.
6. The device as claimed in claim 1, wherein the first plate comprises of a cut out section
configured to accommodate the one or more RC servos.
7. The device as claimed in claim 1, wherein the pointer’s dimension comprises of size,
length, and width, and wherein the dimension is based on the size of the one or more RC
servos.
8. The device as claimed in claim 1, wherein the device is operatively coupled with a
processing unit, wherein the processing unit is configured to compute relation between
angle and pulse width of the one or more RC servos, and wherein the angle is between
the pointer and the graduation scale.
16
9. The device as claimed in claim 1, wherein the device comprises of a drawer configured to
store the processing unit, the set of second plates, the pointer for the one or more RC
servos.
10. The device as claimed in claim 1, wherein the device comprises of a power source
configured to supply electric power, and wherein the power source comprises any or a
combination of battery, rechargeable cell, inverter, generator, and power lines.