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Ref. IS.MDUINO.XXX
10.5
TTL
M-Duino has two TTL ports, RX0/TX0, RX1/TX1. TTL0 is accessed with the function Serial (pins 0
and 1 of the Arduino Mega). TTL1 is accessed with the function Serial1 (pins 18 and 19 of the
Arduino Mega).
In order to use the TTL pins the configuration of the switches have to be the following one:
If the switches RX1/I1.6(I1.1) & TX1/I1.5(I1.0) are in OFF mode, the RX1/TX1 will be enabled. In
order to use TTL3 these switches must be in OFF mode.
10.6
Ethernet
M-Duino Ethernet port controller is based on w5500 IC, which is the compatible IC compatible
with Arduino Ethernet2 Shield libraries. All Ethernet shield Arduino libraries are compatible
with the M-Duino. In the M-Duino, W5500 IC communicates to the Mega board via SPI bus (SS
Arduino Mega pin 10).
10.7
RTC
M-Duino RTC Module is based on the DS1307 Chip. This chip works with the I2C protocol
communication, so it is required to have enabled the I2C protocol.
4 switches have to be configured in order to enable the RTC features:
RTC SCL & RTC SDA must be set to ON mode to
enable the I2C wires to the RTC. If they are in OFF
mode, the Arduino won’t communicate with the RTC.
Switch
Analog Shield
Relay Shield
ON
OFF
ON
OFF
C ZONE
RX1/I1.6
I1.6
RX1
I1.1
RX1
TX1/I1.5
I1.5
TX1
I1.0
TX1
LEFT ZONE
SWITCH
ON
OFF
NC
-
-
NC
-
-
RTC SCL
RTC
-
RTC SDA
RTC
-
Содержание M-DUINO PLUS series
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Страница 3: ...Ref IS MDUINO XXX Ethernet PLC User Guide Revised March 2018 ...
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Страница 38: ...Ref IS MDUINO XXX I O technical details Digital Output Waveform Digital Out put Turn off PWM Waveform ...
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