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sandeepmistry / arduino-LoRa

An Arduino library for sending and receiving data using LoRa radios.
MIT License
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Can you set finer frequency like 921.2? #521

Open Ryan-AD opened 2 years ago

Ryan-AD commented 2 years ago

Wondering if it is possible to set different frequencies (presume that I have regulatory body permissions)

IoTThinks commented 2 years ago

Sure. You can set 920123456 as a valid frequency. Or 920.123456E6.

Ryan-AD commented 2 years ago

Thanks, what does the E6 bit at the end mean?

as206em commented 2 years ago

e6 mean 1000000 (mega)

wong-hao commented 2 years ago

Sure. You can set 920123456 as a valid frequency. Or 920.123456E6.

You mean I can set any frequency like 470E6 which is used in china?

IoTThinks commented 2 years ago

Yes, you can set 470e6. Make sure the chip support the frequency

470e6 = 470 * (10 power of 6) = 470 000 000 = 470 Mhz.

T1j3ff commented 1 year ago

Be aware that even if you chip support the new frequency , the breakout board you are using might be specifically optimise for a specific frequency . Inductor-capacitor network are required before going to the antenna. A slight frequency adjustment might be fine , but going way out the design and TX on full power will result with alot of power loss and might event damage the chip