From fa45d962bd4e7cc9429ab606aa13dcd0a6dffe9a Mon Sep 17 00:00:00 2001 From: sh123 Date: Fri, 11 Dec 2020 17:43:16 +0200 Subject: [PATCH] Update README.md --- README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.md b/README.md index 5a0194c..2ec35d2 100644 --- a/README.md +++ b/README.md @@ -42,7 +42,7 @@ All work was done on ESP32-WROOM with custom made LoRa shield, if your ESP32 boa - lora module SS, **CfgPinSs**, GPIO_5 - lora module RST, **CfgPinRst**, GPIO_26 - lora module DIO0, **CfgPinDio0**, GPIO_14 -- if you are planning to experiment with different bandwidths/spread factors then modify values in `initializeConfig()`, with current parameters APRS packet time on air is around **1-2 seconds** @ 292bps/36Bps, to decode with as lower level as possible with reasonable speed (comparable to 300bps HF APRS), use https://github.com/tanupoo/lorawan_toa to make further calculations +- if you are planning to experiment with different bandwidths/spread factors then modify values in `initializeConfig()`, with current parameters APRS packet time on air is around **1-2 seconds** @ 292bps/36Bps, to decode with as lower level as possible with reasonable speed (comparable to 300bps HF APRS), use https://github.com/tanupoo/lorawan_toa or https://www.rfwireless-world.com/calculators/LoRa-Data-Rate-Calculator.html to make further calculations - lora bandwidth `cfg.LoraBw`, 125 kHz (also tested with 20.6 KHz and SF9 with frequency correction) - lora spread factor `cfg.LoraSf`, 12 (should decode down to -20dB, choosen with the goal for minimum signal decode) - lora coding rate `cfg.LoraCodingRate`, 7