AK-NORD XT-PICO-XXL, Manual

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Example: I/O Expander PCF8574AP
Settings :
1 = Slave Addr = 0
2 = Baudrate = 100000
3 = Data Control = P
4 = Data Poll*10ms = 10
5 = Flow Control = N
Set P0 = 0 (Low )
WRITE: 0x02,0x00,0x08,0x03,0x38,0x00,0x57,0x00,0x01,0xF7,0x03
ANSWER: 0x06,0x57
Read P0-P7
WRITE: 0x02,0x00,0x07,0x03,0x38,0x00,0x52,0x00,0x01,0x03
ANSWER: 0x06,0x52,0xFF
Note
:
The characters displayed in hexadecimal notation, such as
0xnn
, have to be transmitted in
binary format to the interface via the network.
I
I
I
I
+3.3V
SDA
SCL
O
GND
GND
O
O
O
GND
GND