From d7c60efb698da68afeb173bb22eff961858e7246 Mon Sep 17 00:00:00 2001 From: sh123 Date: Fri, 26 Apr 2019 10:09:59 +0300 Subject: [PATCH] Update README.md --- README.md | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index c7667d6..24600bd 100644 --- a/README.md +++ b/README.md @@ -21,6 +21,7 @@ Can be used in two modes: - lora module CfgPinRst, pin 26 - lora module CfgPinDio0, pin 14 - lora bandwidth CfgBw, 20 kHz (to fit into standard 25 kHz channel) - - lora spread factor CfgSpread, 9 (seems to be optimal between signal level and transmit time) + - lora spread factor CfgSpread, 11 (down to -17.5dB) + - lora coding rate CfgCodingRate, 7 - lora output power CfgPower, 20 (set to maximum 20 dBm ~ 100mW, change to lower value if needed) - use 80 MHz ESP32 frequency in Arduino, it will prolong battery life when operating portable, higher speed is not needed