From c30dd4b90bbdd23c37d4e68a82e3e84a78e755e0 Mon Sep 17 00:00:00 2001
From: G6EJD <d.l.bird@sky.com>
Date: Sat, 16 Dec 2017 10:34:19 +0000
Subject: [PATCH] Update README.md

---
 README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/README.md b/README.md
index fced41a..dfd032f 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,5 @@
 # ESP32-8266-Audio-Spectrum-Display
+
+The ESP8266 variant can display a flat response between 100Hz and 5.2Khz and is limited by the ADC conversion time.
+
+The ESP32 variant, can display a flat response between 50Hz and 20Khz and is less limited by ADC conversion time and uses 512 samples for improved resolution. It could be optimised even further for a wider freqencuy response.