User's Manual

APN0000236_V0.3.1_UDL07XX_User Manual_Lora 20220728 Final Document level: 2
Doc.#: #: APN0000236_V0.3.1_UDL07XX_User Manual_Lora 20220728 Final
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User Interface Signal Definition
Pin
Number
Signal Name
Default Function
Extensible Function
1
PWR
Power input anode
N/A
2
GND
Power Ground
N/A
3
GND
Power Ground
N/A
4
RX
RS232 RX
N/A
5
TX
RS232 TX
N/A
6
A
RS485 anode
N/A
7
B
RS485 cathode
N/A
8
IO1
GPIO
sleep control
9
IO2
GPIO
N/A
10
IO3
ADC, analog input
function (voltage
acquisition 0 ~ 5 V)
GPIO
11
IO4
ADC, analog input
function (current
collection 0 ~ 20
GPIO