Chengdu Ebyte Electronic Technology Co.,Ltd.
E610-433TxxS User Manual
Copyright ©2012–2023
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Chengdu Ebyte Electronic Technology Co.,Ltd.
9
Pin definition.
No.
Name
Direction
Uses
1
GND
-
Module ground
2
VCC
-
Positive reference for module power supply, voltage range: 3.0 to
3.6 VDC
3
AUX
Output
Used to indicate module operating status; user wakes up external
MCU and outputs low during power-up self-test initialization;
(can be left hanging)
4
TXD
Output
TTL serial output, connected to the external RXD input pin.
5
RXD
Input
TTL serial input, connected to the external TXD output pin.
6
M1
Input (very
weak pull-up)
In conjunction with M0, determines the 4 modes of operation of
the module (not suspended, grounded if not in use)
7
M0
Input (very
weak pull-up)
In conjunction with M1, determines the 4 modes of operation of
the module (not overhead, grounded if not in use)
11
ANT
Output
Antenna interface (high frequency signal output, 50 Ohm
characteristic impedance)
12
GND
-
Stationary
13
GND
-
Fixed
14
GND
-
Fixed ground
18
NC
-
NC pin, this pin needs to be overhung
19
NC
-
NC pin, this pin needs to be overhung
20
NC
-
NC pin, this pin needs to be overhung
21
NC
-
NC pin, this pin needs to be overhung
22
NC
-
NC pin, this pin needs to be overhung
23
NC
-
NC pin, this pin needs to be overhung
24
NC
-
NC pin, this pin needs to be overhung