From 2787fa98626133919971946302a511c041db4aea Mon Sep 17 00:00:00 2001
From: sh123 <sh123@users.noreply.github.com>
Date: Thu, 25 Apr 2019 10:17:45 +0300
Subject: [PATCH] Update README.md

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index 1468a39..2e77005 100644
--- a/README.md
+++ b/README.md
@@ -23,3 +23,4 @@ Can be used in two modes:
   - 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 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