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Chengdu Ebyte Electronic Technology Co.,Ltd.
Fixing
10
hole
4 Recommended Connecting Diagram
Serial
number
1
The wireless serial module is TTL level, please connect with MCU of TTL level.
2
Some 5V microcontrollers may need to add 4~10K pull-up resistors to the TXD and AUX pins of the module.
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
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Fixing hole
Module and microcontroller brief connection instructions
(above diagram with STM8L microcontroller as an example)
E22-230T30D User Manual
8
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