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25 lines
946 B
Markdown
25 lines
946 B
Markdown
# SX127x LoRa Radio
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This processor comes in several different packages.
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## Adafruit LoRa Radio Featherwing
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https://www.adafruit.com/product/3231
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This is the LoRa 9x @ 900 MHz radio version, which can be used for either 868MHz or 915MHz transmission/reception - the exact radio frequency is determined when you load the software since it can be tuned around dynamically. They can easily go 2 Km line of sight using simple wire antennas, or up to 20Km with directional antennas and settings tweaks.
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### Connecting
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To use the LoRa Featherwing with a Pybadge/Gobadge, you need to connect some pads on the board itself. Solder some jumper wires as follows:
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RST -> A
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CS -> B
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DIO1 -> C
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IRQ -> D
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You also need to connect an antenna. The easiest is to cut a small piece of wire to the correct length based on the desired frequency:
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EU868 Mhz - 34.54 cm
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You can also use a fancier solution such as a uFL SMA connector with matching antenna.
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