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.
10
3. Mechanical dimensions and pin definitions
3.1 E22-230/400/900T30D mechanical dimensions and pin definitions
Pin number
Pin name
Pin direction
Pin usage
1
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).
2
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).
3
RXD
Input
TTL serial port input, connected to the external TXD output pin;
Can be configured as open-drain or pull-up input, see parameter settings for details.
4
TXD
Output
TTL serial port output, connected to the external RXD input pin;
Can be configured as open-drain or push-pull output, see parameter settings for
details.
5
AUX
Output
Used to indicate the working status of the module;
For user to wakes up the external MCU and it outputs low level during power-on
self-check initialization;
It can be configured as an open-drain output or push-pull output, see parameter

Ebyte E22 T30D Series Specifications

General

Brand	Ebyte
Model	E22 T30D Series
Category	Wireless modules
Language	English