Connect To Mcu - Ebyte E30-490T20S User Manual

Chengdu Ebyte Electronic Technology Co,;Ltd
4
TXD
5
AUX
6
VCC
7
GND
8
ANT
9
Fixed orifice
10
Fixed orifice
11
Fixed orifice

4 Connect to MCU

No.
1 The UART module is TTL level.
2 For some M CU works at 5VDC, it may need to add 4-10K pull-up resistor for the TXD & AUX pin.
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TTL UART outputs, connects to external RXD (M CU, PC) input pin. Can
Output
be configured as open-drain or push-pull output
To indicate module ' s working status & wakes up the external M CU.
Output During the procedure of self-check initialization, the pin outputs low
level. Can be configured as push-pull output (suspending is allowed).
Power supply ：2.3~ 5.5V DC
Input
Ground
Input
Antenna interface (high frequency signal output)
Input
Fixed orifice
Fixed orifice
Fixed orifice
Description（STM8L MCU）
E30 -490T20S user manual
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