Connect To Mcu - Ebyte E32-400T20S User Manual

Chengdu Ebyte Electronic Technology Co,;Ltd
9 AUX
10 VCC
11 GND
12 NC
13 GND
14 NC
15 NC
16 NC
17 NC
18 NC
19 GND
20 GND
21 ANT
22 GND

4. Connect to MCU

No.
1 The UART module is TTL level.
2 For some MCU works at 5VDC, it may need to add 4-10K pull-up resistor for the TXD & AUX pin.
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To indicate module ' s working status & wakes up the external MCU.
During the procedure of self-check initialization, the pin outputs low
Input
level. Can be configured as push-pull output (suspending is allowed).
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Description（STM8L MCU）
Power supply ：2.3~ 5.2V DC
Ground
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Ground
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Ground
Ground
Antenna
Ground
E32-400T20S User Manual
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