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15 lines
831 B
Markdown
15 lines
831 B
Markdown
# Radio Setup
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✅ Open the `src/bin/radio-send.rs` file.
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✅ First run the program `radio-send.rs` as it is. You should see new output in the output of `cargo xtask serial-term`.
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``` console
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$ cargo xtask serial-term
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deviceid=588c06af0877c8f2 channel=20 TxPower=+8dBm app=loopback.hex
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received 5 bytes (CRC=Ok(0xdad9), LQI=53)
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```
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The program broadcasts a radio packet that contains the 5-byte string `Hello` over channel 20 (which has a center frequency of 2450 MHz). The `loopback` program running on the Dongle is listening to all packets sent over channel 20; every time it receives a new packet it reports its length and the Link Quality Indicator (LQI) metric of the transmission over the USB/serial interface. As the name implies the LQI metric indicates how good the connection between the sender and the receiver is.
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