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Chengdu Ebyte Electronic Technology Co., Ltd.
8
TXD
9
AUX
10
VCC
11
GND
12
RST
13
GND
14
SWDIO
15
VDD
16
RS485
17
PA-RXEN
18
PA-TXEN
19
GND
20
GND
21
ANT
22
GND
3.2 E29-400T22D Dimension and Pin definition
Copyright ©2012–2023，Chengdu Ebyte Electronic Technology Co.,Ltd.
Output
TTL UART outputs, connects to external RXD input pin.
Used to indicate the working status of the module;
Output
For user to wakes up the external MCU and it outputs low level during
power-on self-check initialization; (can be left floating)
-
Module power positive reference, voltage range: 2.6～5.5V DC
-
Module ground
-
Module Reset pin
-
Module ground
-
-
-
3.3V
-
RS485 enable
-
NC
-
NC
-
Module ground
-
Module ground
-
Antenna
-
Module ground
E29-400TXXX product data sheet
9
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