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exploring_lora [2018/09/29 12:31] – [3.1. Modifying the Radio Parameters] samerexploring_lora [2018/09/29 12:51] – [3.1. Modifying the Radio Parameters] samer
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 ==== -. Modifying the Radio Parameters ==== ==== -. Modifying the Radio Parameters ====
  
-Download the {{ :sketch-1819.zip | basic sketches}} that implement a simple LoRa communication between the two modules: a client module and a server module. Open the sketches with Arduino IDE. Make sure to choose the correct ''Board'' and ''Port'' in the ''Tools'' menu. +Download the {{ :sketch-1819.zip | basic sketches}} that implement a simple LoRa communication between the two modules: a client module and a server module. Open the sketches with Arduino IDE. Make sure to choose the correct ''Board'' and ''Port'' in the ''Tools'' menu. In order to reduce collisions, configure the central frequency of your LoRa modules as below:
- +
-The typical configuration for LoRa modules consists of 125 kHz sub-channels, a coding rate of 4/5, and a spreading factor equal to 7. You can later modify these radio parameters in the ''setup'' function by choosing one the following data rates: +
- +
-^  Data Rate    Spreading Factor      ^  Bandwidth  ^  +
-|  DR0         | SF12            |  125kHz   | +
-|  DR1         | SF11            |  125kHz   | +
-|  DR2         | SF10            |  125kHz   | +
-|  DR3         | SF9              125kHz   | +
-|  DR4         | SF8              125kHz   | +
-|  DR5         | SF7              125kHz   | +
-|  DR6         | SF7              250kHz   | +
- +
-In order to reduce collisions, configure the central frequency of your LoRa modules as below:+
  
 ^  Group Number  ^   Frequency     ^ ^  Group Number  ^   Frequency     ^
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 |       12            868.9      | |       12            868.9      |
  
 +Note that the radio parameters of your LoRa devices: Spreading Factor (SF), Bandwidth (Bw), and Coding Rate (CR) are configured in the ''setup'' function of the sketches. when needed, you can modify these configurations.
 ==== -. Running Basic Sketches ==== ==== -. Running Basic Sketches ====
  
exploring_lora.txt · Last modified: 2021/10/20 12:52 by samer