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RS**5 Module Make Your Arduino Talk with Each Other
In your project, is there any requirement to achieve communication
or data transmission among your Arduino? Or do you want to make
your Arduino talk with each other?
The RS**5 can help you to make it come true, RS**5 serial bus
interface standard transmiss signal through difference balance,
have very strong resistance ability to common mode interference,
allows one transmitter to drive multiple load equipments on a pair
of twisted pair. In theory, the communication distance is ***0
meters, the rate speed can be as fast as *0 Mbps, and it can keep
normal work in strong noise environment.
The biggest advantages of RS**5 is the simple programming, because
you only need to use Arduino own Serial library, that is
enough.
RS**5 in essence is a kind of serial protocol, so when RS**5
electronic module is used to connect Arduino, it need to take
Arduino serial interface. Arduino sensor module has COM interface
which is specifical for electronic Module with serial interface, so
we just only need to use a 4 pin cable to connect RS**5 module with
Arudino sensor module.
There are two green terminal "+" and "-" on the top of RS**5 module
which is used for 5V power supply, when multiple RS**5 module
cascade, you can join all of green terminal "+" and "-" of RS**5
module together, so that, on the whole, only need to give one of
the grafted in 5 V power supply is ok.
Just said to cascade power supply, there are two green terminal "A"
and "B" at the buttom of RS**5 module which is used to realize
cascade connection function. You can use any of the connecting
cable to connect the first "A" and "B" interface of RS**5 module
respectively with the second "A" and "B" interface of RS**5
module.
On the left of RS**5 module, there are two black terminal "OUTPUT"
and "INPUT", it is the telephone wire connection interface. When
RS**5 module need cascade function, we only need to connect one
OUTPUT interface of RS**5 module with another OUTPUT interface of
RS**5 module, then it will be ok.
On RS**5 serial interface module, another switch need to cause our
attention is marked as "TR" switch, it is used to control terminal
resistance, the purpose is to absorb reflected signal from RS**5
network, in order to protect the normal transmission signal from
interference. But this resistance can only be used on the final
equipment module of RS**5 bus, this is the reason why we call it as
terminal resistance. In the connection, only need to set the "TR"
switch of final equipment RS**5 module to "ON" position. While
other RS**5 module are going to be set to the opposite position
from "ON".
Below TR switch, there are another two switch which are called "O
+" and "O -". When several RS**5 modules cascade with power supply,
while there are modules cascade too many to cause undervoltage of
the RS**5 module. But when we use telephone lines to achieve RS**5
module cascade, because the telephone line four line is "bound"
together, so we can't like use on the top of the green terminal,
as long as we connected or disconnected the corresponding port,
then it will be alright.
"O +" and "O -" switch is designed to solve this problem. Only when
the "O +" and "O -" switch is at the "ON" position, cascade power
supply can take effect.
In other words, when the "O +" and "O -" switch is set to the
opposite position from "ON", cascade power supply can not take
effect, then it need to insert external power supply at the
position of "+" and "-" of this RS**5 module. Thus it can achieve
several RS**5 modules cascade with power supply.
In the lower right corner of RS**5 there is a "L1" lamp. This small
LED connect with an automatic transceiver detection circuit, when
there is data transmission, it will light up, so it is used as
indicator for data transmission.
País: | China |
N º de Modelo: | - |
Precio FOB: | Obtener el precio más reciente |
Lugar de origen: | - |
Precio de pedido mínimo: | - |
Cantidad de pedido mínimo: | - |
Detalle de embalaje: | - |
El tiempo de entrega: | - |
Capacidad de suministro: | - |
Tipo de pago: | - |
Grupo de productos : | arduino board and accessories |