mirror
/
esp32_loraprs
kopia lustrzana https://github.com/sh123/esp32_loraprs
1
0
Forkuj 0
Kod Zgłoszenia Projekty Wydania Wiki Aktywność

Update README.md

pull/5/head
sh123 2020-06-11 13:16:32 +03:00 zatwierdzone przez GitHub
rodzic 7dc76d399c
commit 80963bdf11
Nie znaleziono w bazie danych klucza dla tego podpisu
ID klucza GPG: 4AEE18F83AFDEB23
1 zmienionych plików z 1 dodań i 1 usunięć
Pokaż statystyki Ściągnij plik aktualizacji Ściągnij plik porównania Expand all files Collapse all files

2
README.md
Wyświetl plik

@ -33,7 +33,7 @@ All work was done on ESP32-WROOM with custom made LoRa shield, if your ESP32 boa
- lora output power **CfgPower**, 20 (max 20 dBm ~ 100mW, change to lower value if needed) - lora output power **CfgPower**, 20 (max 20 dBm ~ 100mW, change to lower value if needed)
- sync word **CfgSync**, 0xf3 - sync word **CfgSync**, 0xf3
- consider minimum decode level based on on BW + SF ![alt text](images/bandwidth_vs_sf.jpg) - consider minimum decode level based on on BW + SF ![alt text](images/bandwidth_vs_sf.jpg)
- use 80 MHz ESP32 frequency in Arduino, it will prolong battery life when operating portable, higher CPU speed is not required, there are no CPU intensive operations - use 80 MHz ESP32 frequency in Arduino SDK, it will prolong battery life when operating portable, higher CPU speed is not required, there are no CPU intensive operations
- uses LoRa **built-in checksum** calculation to drop broken packets - uses LoRa **built-in checksum** calculation to drop broken packets
- note, that there a is **significant frequency drift** on temperature changes for different modules - note, that there a is **significant frequency drift** on temperature changes for different modules
- you need to use **external TCXO** if you are planning to use modules for narrow bandwidths less than 125 kHz - you need to use **external TCXO** if you are planning to use modules for narrow bandwidths less than 125 kHz