Handling Electronic Wireless One Skate

HANDLING ELECTRONIC WIRELESS ONE SKATE
Andrés Felipe Contero Ramos
SCHOOL OF ELECTRONIC ENGINEERING, NATIONAL UNIVERSITY OF
CHIMBORAZO
Andres_conteroaem@yahoo.es

ABSTRACT:
The development of the electric scooter is
given to the application of knowledge
acquired in the three levels of learning.
It consists of the user with buttons to
control the movement of the skateboard
in twodirections, forward and back,
remember that the manipulation of
control is wirelessly up to 200 m.
It has three speeds, which can be handled
effectively, it is important to note that the
maximum weight that supports the circuit
without problem up to about 40kg.

that consist four buttons for the
manipulation of three speeds and retro.
The encoding and decoding is given by a
transmitter andreceiver respectively,
which eventually reaches the input will
generate a code to the microcontroller,
which means that the stated will exit
programming.
These outputs the optocouplers successful
by a light which will activate the
circulation of the current so that this is
dezplace a MOSFET bridge which
redirect the stream to give a senido-turn
motors.

KEYWORDS:

II.- BODY OF REPORTCurrent
Diode
Saturation
Attachment
Address
Microcontroller
MOSFET
I.- INTRODUCTION
From the ease of manipulation of
electronic machinery has implemented
this system in the control of an electric
scooter that has two DC motors which
will be capable of generating a two-way
movement controlled by a wireless device

1.-ENCODER
When designing a digital system is
necessary torepresent or encode in binary
numeric and alphanumeric information
obtained from this system and to that end,
there are combinatorial circuits called
encoders.

2.- DECODER
An encoder is a combinational circuit that
has a number of entries, of which only
one has the logic state 1, and generates a
multi-bit code that depends on what input
excited.
Features
_ Operating voltage: 2.4V~12V
_Low power and high noise immunity
CMOStechnology
_ Low standby current
_ Capable of decoding 12 bits of
information
_ Pair with Holtek_s 212 series of
encoders
_ Binary address setting
_ Received codes are checked 3 times
_ Address/Data number combination
_ HT12D: 8 address bits and 4 data bits
_ HT12F: 12 address bits only
_ Built-in oscillator needs only 5%
resistor
_ Validtransmission indicator
_ Easy interface with an RF or an infrared
transmission medium
_ Minimal external components[1]

A decoder or decoder is a combinational
circuit whose function is inverse to the
encoder, that is, converts a binary input
(natural, BCD, etc.). N-bit input and
output lines M (N can be any integer and
M is an integer less than or equal to 2N)
such that each line will beactivated for
one of the possible combinations of entry.
These circuits usually are usually found
as a decoder / demultiplexer. This is
because a demultiplexer can act as a
decoder.
If for example we have a decoder 2 inputs
with 22 = 4 outputs, where inputs, its
performance would be shown in the table
below, where it was considered that the
outputs are activated by a "one" logical
GeneralDescription
The 212 encoders are a series of CMOS
LSIs for remote control system
applications. They are capable of
encoding information which consists of N
address bits and 12_N data bits. Each
address/
data input can be set to one of the two
logic
states.
The
programmed
addresses/data are transmitted together
with the header bits via an RF or an
infrared transmission medium uponreceipt of a trigger signal. The capability
to select a TE trigger on the HT12E or a
DATA trigger on the HT12A further
enhances the application flexibility of
the 212 series of encoders.

The HT12A additionally provides a
38kHz carrier for infrared systems.[2]

Scheme of a microcontroller.

3.- MICROCONTROLLER
They are designed to reduce the economic
cost and power consumption of a...