LoRa module logic level

Projects Networking, Protocols, and Devices
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I`ve got 2 ebyte e32 433t30s modules.They work very well with serial converters(ch340).I connect rx and tx directly from serial converter without using any voltage divider resistors or logic level converter.I want to know how safe it is?Because datasheet(below) says logic level must be 3.3volts.5v may burn the chip.When I use them with logic level converter they become unstable sometimes and send some nonsense symbols(maybe due to electrical noise).Altough, everything is well with directly connection.

E32-433T30S_Usermanual_EN_v1.5 (1).pdf (1.58 MB)

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Eldar0101:
I want to know how safe it is? Because datasheet(below) says logic level must be 3.3volts. 5v may burn the chip

Depends how lucky you feel and how deep your pockets are.

The datasheet says the device needs 3.3V logic and specifically says the device may be burnt by 5V logic then maybe there is an extremly remote possibity the datasheet is correct.

Use a 3.3V logic processor, a lot of (cheap) logic level converters are fairly marginal in my experience.

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