Data Sheet

Dragino Technology Co., Limited
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HE WiFi IoT Module Datasheet
7
20
GPIO20
In/Out
General I/O
21
GPIO23
In/Out
General I/O
22
GND
Ground
23
VDD33_IN
Input
Power Supply, 3.3V
24
VDD33_IN
Input
Power Supply, 3.3V
25
GND
Ground
26
GND
Ground
27
GPIO28
In/Out
General I/O
28
LED6_P4
Output
Status LED for Ethernet Port4
Should be source current only
29
LED1_USB
Output
Status LED for USB port
Should be source current only
30
LED0_WLAN
Output
Status LED for Wireless
Should be source current only
31
LED2_P0
Output
Status LED for Ethernet Port0
Should be source current only
32
GND
Ground
33
UART_RX
Input
Serial data in
34
UART_TX
Output
Serial data out
35
GND
Ground
36
2.5v_out
Output
Reference 2.5v output
37
JumpStart
In/Out
Failsafe Control Signal, GPIO11
38
GPIO15
In/Out
General I/O
Should be source current only
39
GPIO16
In/Out
General I/O
40
GND
Ground
41
Optional
ANT
Output
Optional Antenna output
42
GND
Ground
43
RESET
Input
RESET input, active LOW
44
GND
Ground
45
GND
Ground
46
GPIO27
In/Out
General I/O
47
GPIO26
In/Out
General I/O
48
GND
Ground
49
USB D+
USB D+ Signal
50
USB D-
USB D- Signal
5.2 GPIO Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VOH
Output High Voltage
2.44
V
VOL
Output Low Voltage
0.1
V
VIH
Input High Voltage
0.7
V
VIL
Input Low Voltage
0.3
V
Signal Name
Type
Drive
PU/PD Resistance
GPIO_0 GPIO_28
I/O
Up to 24 mA
200 KΩ
5.3 Power Consumption:
Periphery
IDLE
Bulk File Transfer in all ports
Current @3.3v
DC Power
Current @3.3v
Power
WiFi only
150ma
495mw
220ma
726mw
RJ45 only
160ma
528mw
205ma
676mw
WiFi + 1 RJ45
210ma
693mw
282ma
924mw
WiFi + 2 RJ45
270ma
891mw
343ma
1131mw
WiFi + 2 RJ45 + USB