Ebyte E32 Series, Руководство пользователя

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SX1278 Wireless Module E32 Series User Manual
Copyright ©2012–2017, Chengdu Ebyte Electronic Technology Co., Ltd. 12 / 24
3.1.5 E32-433T30S
Pin No. Pin item Pin direction Application
1 M0
Input Work with M1 & decide the four operating modes.
（weak pull-up） Floating is not allowed, can be ground.
2 M1
Input Work with M0 & decide the four operating modes.
（weak pull-up） Floating is not allowed, can be ground.
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
5 AUX
Input
To indicate module’s working status & wakes up the external MCU. During
the procedure of self-check initialization, the pin outputs low level. Can be
configured as open-drain output or push-pull output ( floating is allowed ).
6 VCC
Input
Voltage reference of module.
Power supply 2.6V ~ 5.5V DC
7 GND Input Ground
8 RESET Input Reset pin when program is loading
（
floating
，
users do not need to connect
）
9 GND
Input
Ground pin when program is loading (floating
，
users do not need to connect
）
10 SWIM
Input
SWIM pin when program is loading (floating
，
users do not need to connect
）
11 +3.3V
Input
Power supply pin when program is loading (floating
，
users do not need to
connect
）
12 PB3
Input
/
Output
NC pin ， need to be floating ， not connected （ for further development ）
13 PB1
Input
/
Output
NC pin
，
need to be floating
，
not connected
（
for further development
）
14 PB0
Input
/
Output
NC pin
，
need to be floating
，
not connected
（
for further development
）
15 GND
Ground
16 GND
Ground
17 GND Ground
18 ANT Output Antenna connector(high level output, 50 characteristic impedance)