Ebyte E22 T30D Series User Manual

Chengdu Ebyte Electronic Technology Co., Ltd. E22-xxxT30x series product user manual
Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd.
12
For user to wakes up the external MCU and it outputs low level during
power-on self-check initialization; (can be left floating)
4
TxD
Outpu
TTL Serial port output, connected to the external RXD input pin;
5
RXD
Input
TTL Serial port input, connected to the external TXD output pin;
6
M1
Input (very weak
pull-up)
Work with M0 to decide 4 working modes of the module (cannot be left
floating; can be grounded if not used).
7
M0
Input (very weak
pull-up)
Work with M1 to decide 4 working modes of the module (cannot be left
floating; can be grounded if not used).
11
ANT
Output
Antenna interface (high frequency signal output, 50ohm characteristic
impedance)
12
GND
-
Fixed ground wire
13
GND
-
Fixed ground wire
14
GND
-
Fixed ground wire
18
NC
SWCLK
19
NC
SWDIO
20
NC
P2.4 as 485_EN
twenty
one
NC
Internally connected to 3.3V as download power supply;
twenty
two
RESET
Input
Reset pin when program is loaded (floating, user does not need to connect)
twenty
three
GND
Input
Ground pin when program is loaded (floating, user does not need to connect)
twenty
four
NC
Empty pin

Ebyte E22 T30D Series Specifications

General

Brand	Ebyte
Model	E22 T30D Series
Category	Wireless modules
Language	English