Ebyte E32-433T20S1 - Size and Pin Definition

Chengdu Ebyte Electronic Technology Co,;Ltd E32-433T20S1 user manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
6
Communication interface
UART
TTL@3.3V
Package
SMT
-
Connector
2.00mm
-
Size
17 * 25.5mm
-
Antenna
Stamp hole
50 ohm impedance
3 Size and pin definition
No.
Name
Direction
Function
1
M0
Input
（weak pull-up）
Work with M1 to decide 4 working modes of module (not
suspended, if not used, could be grounded).
2
M1
Input
（weak pull-up）
Work with M0 to decide 4 working modes of module (not
suspended, if not used, could be grounded).
3
RXD
input
TTL UART inputs, connects to external (MCU, PC) TXD output pin. Can
be configured as open-drain or pull-up input.
4
TXD
output
TTL UART outputs, connects to external RXD (MCU, PC) input
pin. Can be configured as open-drain or push-pull output